Academic literature on the topic 'Roads Australia Interchanges and intersections Research'

The paper presents several problems of designing trunk-road bypasses of towns, which can be very helpful in improving their traffic performance. Such roads perform supplementary functions to the operation of network of motorways and express-roads constructed in Poland over the last decade. These problems include: selection of the cross section, selection and design of intersections and interchanges on bypasses, safety and traffic operation problems. The authors highlight the advantages of bypasses and point out some errors, which can be seen in the operation stage, basing on research and observation of 8 bypasses. In the paper traffic operation and road safety analyses for Zyrardow bypass are presented. The final part of the paper gives conclusions and recommendations for 2+1 bypass use and design.

Texas frontage road turnarounds at diamond interchange locations are a common treatment in the State of Texas. This configuration, also often referred to as the Texas U-turn, allows vehicles traveling on a one-way frontage road to access the opposing direction one-way frontage road via a U-turn before the terminal intersections at the diamond interchange. This technique removes two potential left-turn maneuvers from the adjacent at-grade intersections. The frontage road turnaround has operational benefits that result from shifting vehicles that would typically be occupying the intersection. The safety of these turnaround configurations, however, is not well known. This paper focuses on the observed safety performance of these turnaround configurations at diamond freeway interchanges in Texas. The authors first developed a large randomly sampled data set to facilitate a statistically reliable assessment of U-turn safety performance for Texas interchanges. Next they conducted a safety performance assessment at locations with and without turnarounds and determined that site features that significantly influence the number of crashes include the volume of cross street traffic, the cross street right-turn configuration at frontage roads, the minimum radius in the turnaround, the longitudinal distance from the U-turn exit to the closest downstream driveway, and the number of lanes on each frontage road. The safety performance findings at locations with and without turnarounds suggests that an agency could construct a turnaround to enhance facility operations with the knowledge that construction will not adversely impact safety. Although the research introduced in this paper focuses on Texas locations, the findings should be applicable to similar facilities in other states if the turnaround conditions are similar.

Urban arterials and intersections account for a large proportion of high severity crashes in Australia and New Zealand, particularly involving vulnerable road users. Safety gains appear to be slower in these ‘mixed use’ environments than in other areas. Austroads commissioned research to help identify solutions that might be applied on mixed use arterial roads to improve safety through the provision of Safe System infrastructure. The project involved assessment of six case studies around Australia and New Zealand. Concept designs were developed for each of the routes based on analysis of safety issues and the likely safety benefits were assessed. This paper presents information on the safety solutions identified, as well as the broader issues that need to be considered when addressing safety on mixed use urban arterial roads.

Abstract In world practice, one of the main features of integrated transport systems, is the delivery of goods "door-to-door", which is impossible without the road transport is being used at the final stage of transportation. Today, the situation on the Ukrainian roads has a negative trend in terms of traffic jams and accidents, which creates a risk of delay or damage to freight during the transportation process. The problem is how to optimize the urban transport network to meet the growing demand for transportation and reduce traffic congestion. Purpose. Investigate the root causes of traffic congestion and develop a tool in order to optimize the city network on the example of a traffic interchange. Analytical and experimental with the use of computer 3D-simulation. For a practical demonstration, a model of one of the most problematic, from the point of view of traffic jams, transport interchanges in Kyiv, was developed. An optimization experiment was conducted, which demonstrated an increase in interchange capacity by 26,2% and reduction in average transportation time by 60, 47%. It is a difficult task to optimizing the transport network, because if you conduct an experiment with a real system, any changes could be catastrophic. In addition, it is necessary to anticipate the growth of traffic, take into account the economic, territorial and industrial characteristics of settlements. The research clearly demonstrates the possibilities of simulation computer modeling in this aspect. The purposed solution allows to optimize the city transport network without significant investment, and could reduce the risk of accidents, financial and time costs for transportation of goods by city in the global aspect. Keywords: freight transport, intersections, integrated transport systems, urban transport network, optimization, imitation modeling.

Many films of the Australian New Wave (or Australian film renaissance) of the 1970s and 1980s can be defined as gothic, especially following Jonathan Rayner’s suggestion that “Instead of a genre, Australian Gothic represents a mode, a stance and an atmosphere, after the fashion of American Film Noir, with the appellation suggesting the inclusion of horrific and fantastic materials comparable to those of Gothic literature” (25). The American comparison is revealing. The 400 or so film productions of the Australian New Wave emerged, not in a vacuum, but in an increasingly connected and inter-mixed international space (Godden). Putatively discrete national cinemas weave in and out of each other on many levels. One such level concerns the reception critics give to films. This article will drill down to the level of the reception of two examples of Australian gothic film-making by two well-known American critics. Rayner’s comparison of Australian gothic with American film noir is useful; however, it begs the question of how American critics such as Pauline Kael and Andrew Sarris influentially shaped the reception of Australian gothic in America and in other locations (such as Australia itself) where their reviews found an audience either at the time or afterwards. The significance of the present article rests on the fact that, as William McClain observes, following in Rick Altman’s footsteps, “critics form one of the key material institutions that support generic formations” (54). This article nurtures the suggestion that knowing how Australian gothic cinema was shaped, in its infancy, in the increasingly important American market (a market of both commerce and ideas) might usefully inform revisionist studies of Australian cinema as a national mode. A more nuanced, globally informed representation of the origins and development of Australian gothic cinema emerges at this juncture, particularly given that American film reviewing in the 1970s and 1980s more closely resembled what might today be called film criticism or even film theory. The length of individual reviews back then, the more specialized vocabulary used, and above all the tendency for critics to assume more knowledge of film history than could safely be assumed in 2014—all this shows up the contrast with today. As Christos Tsiolkas notes, “in our age… film reviewing has been reduced to a thumbs-up or a thumbs-down” (56)! The 1970s and 1980s is largely pre-Internet, and critical voices such as Kael and Sarris dominated in print. The American reviews of Australian gothic films demonstrate how a different consciousness suffuses Kael’s and Sarris’s engagements with “Antipodean” (broadly Australian and New Zealand) cinema. Rayner’s locally specific definition of Australian gothic is distorted in their interpretations of examples of the genre. It will be argued that this is symptomatic of a particular blindspot, related to the politics and art of place, in the American reception of Wake in Fright (initially called Outback in America), directed by the Canadian Ted Kotcheff (1971) and The Year of Living Dangerously, directed by Peter Weir (1982). Space and argument considerations force this article to focus on the reviews of these films, engaging less in analysis of the films themselves. Suffice to say that they all fit broadly within Rayner’s definition of Australian gothic cinema. As Rayner states, three thematic concerns which permeate all the films related to the Gothic sensibility provide links across the distinctions of era, environment and character. They are: a questioning of established authority; a disillusionment with the social reality that that authority maintains; and the protagonist’s search for a valid and tenable identity once the true nature of the human environment has been revealed. (25) “The true nature of the human environment….” Here is the element upon which the American reviews of the Australian gothic founder. Explicitly in many films of this mode, and implicitly in nearly all of them, is the “human environment” of the Australian landscape, which operates less as a backdrop and more as a participating element, even a character, in the drama, saturating the mise-en-scène. In “Out of Place: Reading (Post) Colonial Landscapes as Gothic Space in Jane Campion’s Films,” Eva Rueschmann quotes Ross Gibson’s thesis from South of the West: Postcolonialism and the Narrative Construction of Australia that By featuring the land so emphatically… [Australian] films stake out something more significant than decorative pictorialism. Knowingly or unknowingly, they are all engaging with the dominant mythology of white Australia. They are all partaking of the landscape tradition which, for two hundred years, has been used by white Australians to promote a sense of the significance of European society in the “Antipodes”. (Rueschmann) The “emphatic” nature of the land in films like Wake in Fright, Mad Max 2 and Picnic at Hanging Rock actively contributes to the “atmosphere” of Australian gothic cinema (Rayner 25). This atmosphere floats across Australian film and literature. Many of the films mentioned in this article are adaptations from books, and Rayner himself stresses the similarity between Australian gothic and gothic literature (25). Significantly, the atmosphere of Australian gothic also floats across the fuzzy boundary between the gothic and road movies or road literature. Mad Max 2: The Road Warrior is obviously a road movie as well as a gothic text; so is Wake in Fright in its way; even Picnic at Hanging Rock contains elements of the road movie in all that travelling to and from the rock. Roads, then, are significant for Australian gothic cinema, for the road traverses the Australian (gothic) landscape and, in the opportunity it provides for moving through it at speed, tantalizes with the (unfulfillable) promise of an escape from its gothic horror. Australian roads are familiar, part of White European culture referencing the geometric precision of Roman roads. The Australian outback, by contrast, is unfamiliar, uncanny. Veined with roads, the outback invites the taming by “the landscape tradition” that it simultaneously rejects (Rueschmann). In the opening 360° pan of Wake in Fright the land frightens with its immensity and intensity, even as the camera displays the land’s “conquering” agent: not a road, but the road’s surrogate—a railway line. Thus, the land introduces the uncanny into Australian gothic cinema. In Freudian terms, the uncanny is that unsettling combination of the familiar and the unfamiliar. R. Gray calls it “the class of frightening things that leads us back to what is known and familiar” (Gray). The “frightening” land is the very condition of the “comforting” road; no roads without a space for roads, and places for them to go. In her introduction to The Penguin Book of the Road, Delia Falconer similarly sutures the land to the uncanny, linking both of these with the first peoples of the Australian land: "Of course there is another 'poetry of the earth' whispering from the edges of our roads that gives so many of our road stories an extra charge, and that is the history of Aboriginal presence in this land. Thousands of years of paths and tribal boundaries also account for the uncanny sense of being haunted that dogs our travellers on their journeys (xvii). White Australia, as the local saying goes, has a black past, played out across the land. The film The Proposition instances this, with its gothic portrayal of the uncanny encroachments of the Australian “wilderness” into the domain of “civilization”. Furthermore, “our” overweening literal and metaphoric investment in the traditional quarter-acre block, not to mention in our roads, shows that “we” haven’t reconciled either with the land of Australia or with its original inhabitants: the Aboriginal peoples. Little wonder that Kael and Sarris couldn’t do so, as White Americans writing some forty years ago, and at such a huge geographic remove from Australia. As will be seen, the failure of these American film critics to comprehend the Australian landscape comes out—as both a “critical reaction” and a “reactive compensation”—in two, interwoven strands of their interpretations of Australian New Wave gothic cinema. A repulsion from, and an attraction to, the unrecognized uncanny is evidenced. The first strand is constituted in the markedly anthropological aspect to the film reviews: anthropological elements of the text itself are either disproportionately magnified or longed for. Here, “anthropological” includes the sociological and the historical. Secondly, Kael and Sarris use the films they review from Australian gothic cinema as sites upon which to trial answers to the old and persistent question of how the very categories of art and politics relate. Initially sucked out of the reviews (strand one), politics and art thus rush back in (strand two). In other words, the American failure to engage deeply with the land triggers an initial reading of films like Wake in Fright less as films per se and more as primary texts or one-to-one documentations of Australia. Australia presents for anthropological, even scientific atomization, rather than as a place in active, creative and complex relationship with its rendering in mise-en-scène. Simultaneously though, the absence of the land nags—eats away at the edges of critical thinking—and re-emerges (like a Freudian return of the repressed) in an attempt by the American critics to exploit their film subjects as an opportunity for working out how politics and art (here cinema) relate. The “un-seen” land creates a mis-reading amongst the American critics (strand one), only to force a compensatory, if somewhat blindsided, re-reading (strand two). For after all, in this critical “over-looking” of the land, and thus of the (ongoing) Aboriginal existence in and with the land, it is politics and art that is most at stake. How peoples (indigenous, settler or hybrid peoples) are connected to and through the land has perhaps always been Australia’s principal political and artistic question. How do the American reviews speak to this question? Sarris did not review Wake in Fright. Kael reviewed it, primarily, as a text at the intersection of fiction and documentary, ultimately privileging the latter. Throughout, her critical coordinates are American and, to a degree, literary. Noting the “stale whiff of Conrad” she also cites Outback’s “additional interest” in its similarity with “recent American movies [about] American racism and capitalist exploitation and the Vietnam war” (415). But her most pointed intervention comes in the assertion that there is “enough narrative to hold the social material together,” as if this were all narrative were good for: scaffolding for sociology (416). Art and culture are left out. Even as Kael mentions the “treatment of the Aborigines,” she misses the Aboriginal cultural moment of the opening shot of the land; this terrain, she writes, is “without a trace of culture” (416). Then, after critiquing what she sees as the unconvincing lesson of the schoolteacher’s moral demise, comes this: “But a more serious problem is that (despite the banal photography) the semi-documentary aspects of the film are so much more vivid and authentic and original than the factitious Conradian hero that we want to see more of that material—we want to learn more” (416-417). Further on, in this final paragraph, Kael notes that, while “there have been other Australian films, so it’s not all new” the director and scriptwriter “have seen the life in a more objective way, almost as if they were cultural anthropologists…. Maybe Kotcheff didn’t dare to expand this vision at the expense of the plot line, but he got onto something bigger than the plot” (417). Kael’s “error”, as it were, is to over-look how the land itself stretches the space of the film, beyond plot, to occupy the same space as her so-called “something bigger”, which itself is filled out by the uncanniness of the land as the intersections of both indigenous and settler (road-based) cultures and their representations in art (417). The “banal photography” might be better read as the film’s inhabitation of these artistic/cultural intersections (416). Kael’s Wake in Fright piece illustrates the first strand of the American reviews of Australian gothic cinema. Missing the land’s uncanniness effectively distributes throughout the review an elision of culture and art, and a reactive engagement with the broadly anthropological elements of Kotcheff’s film. Reviews of The Year of Living Dangerously by Kael and Sarris also illustrate the first strand of the American-Australian reviewing nexus, with the addition, also by each critic, of the second strand: the attempt to reconnect and revitalize the categories of politics and art. As with Wake in Fright, Kael introduces an anthropological gambit into Weir’s film, privileging its documentary elements over its qualities as fiction (strand one). “To a degree,” she writes, “Weir is the victim of his own skill at creating the illusion of authentic Third World misery, rioting, and chaos” (454). By comparison with “earlier, studio-set films” (like Casablanca [452]), where such “backgrounds (with their picturesque natives) were perfectly acceptable as backdrops…. Here… it’s a little obscene” (454). Kael continues: “Documentaries, TV coverage, print journalism, and modern history itself have changed audiences’ responses, and when fake dilemmas about ‘involvement’ are cooked up for the hero they’re an embarrassment” (454-455). Film is pushed to cater to anthropology besides art. Mirroring Kael’s strand-one response, Sarris puts a lot of pressure on Weir’s film to “perform” anthropologically—as well as, even instead of, artistically. The “movie”, he complains “could have been enjoyed thoroughly as a rousingly old-fashioned Hollywood big-star entertainment were it not for the disturbing vistas of somnolent poverty on view in the Philippines, the location in which Indonesian poverty in 1965 was simulated” (59). Indeed, the intrusive reality of poverty elicits from Sarris something very similar to Kael’s charge of the “obscenity of the backdrop” (454): We cannot go back to Manderley in our movie romances. That much is certain. We must go forward into the real world, but in the process, we should be careful not to dwarf our heroes and heroines with the cosmic futility of it all. They must be capable of acting on the stage of history, and by acting, make a difference in our moral perception of life on this planet. (59) Sarris places an extreme, even outrageous, strand-one demand on Weir’s film to re-purpose its fiction (what Kael calls “romantic melodrama” [454]) to elicit the categories of history and anthropology—that last phrase, “life on this planet”, sounds like David Attenborough speaking! More so, anthropological atomization is matched swiftly to a strand-two demand, for this passage also anticipates the rapprochement of politics and art, whereby art rises to the level of politics, requiring movie “heroes and heroines” to make a “moral difference” on a historical if not on a “cosmic” level (59). It is precisely in this, however, that Weir’s film falls down for Sarris. “The peculiar hollowness that the more perceptive reviewers have noted in The Year of Living Dangerously arises from the discrepancy between the thrilling charisma of the stars and the antiheroic irrelevance of the characters they play to the world around them” (59). Sarris’s spatialized phrase here (“peculiar hollowness”) recalls Kael’s observation that Wake in Fright contains “something bigger than the plot” (417). In each case, the description is doubling, dis-locating—uncanny. Echoing the title of Eva Rueschmann’s article, both films, like the Australian landscape itself, are “out of place” in their interpretation by these American critics. What, really, does Sarris’s “peculiar hollowness” originate in (59)? In what “discrepancy” (59)? There is a small but, in the context of this article, telling error in Sarris’s review of Weir’s film. Kael, correctly, notes that “the Indonesian settings had to be faked (in the Philippines and Australia)” (inserted emphasis) (452). Sarris mentions only the Philippines. From little things big things grow. Similar to how Kael overlooks the uncanny in Wake in Fright’s mise-en-scène, Sarris “sees” a “peculiar hollowness” where the land would otherwise be. Otherwise, that is, in the perspective of a cinema (Kotcheff’s, Weir’s) that comprehends “the true nature of the [Australian, gothic] human environment” (Rayner 25). Of course, it is not primarily a matter of how much footage Weir shot in Australia. It is the nature of the cinematography that matters most. For his part, Sarris damns it as “pretentiously picturesque” (59). Kael, meanwhile, gets closer perhaps to the ethics of the uncanny cinematography of The Year of Living Dangerously in her description of “intimations, fragments, hints and portents… on a very wide screen” (451). Even so, it will be remembered, she does call the “backgrounds… obscene” (454). Kael and Sarris see less than they “see”. Again like Sarris, Kael goes looking in Weir’s film for a strand-two rapprochement of politics and art, as evidenced by the line “The movie displays left-wing attitudes, but it shows no particular interest in politics” (453). It does though, only Kael is blind to it because she is blind to the land and, equally, to the political circumstances of the people of the land. Kael likely never realized the “discrepancy” in her critique of The Year of Living Dangerously’s Billy Kwan as “the same sort of in-on-the-mysteries-of-the-cosmos character that the aborigine actor Gulpilil played in Weir’s 1977 The Last Wave” (455). All this, she concludes, “might be boiled down to the mysticism of L.A.: ‘Go with the flow’” (455)! Grouping characters and places together like this, under the banner of L.A. mysticism, brutally erases the variations across different, uncanny, gothic, post-colonial landscapes. It is precisely here that politics and art do meet, in Weir’s film (and Kotcheff’s): in the artistic representation of the land as an index of the political relations of indigenous, settler and hybrid communities. (And not down the rabbit hole of the “specifics” of politics that Kael claims to want [453]). The American critics considered in this article are not in “bad faith” or a-political. Sarris produced a perceptive, left-leaning study entitled Politics and Cinema, and many of Kael’s reviews, along with essays like “Saddle Sore: El Dorado, The War Wagon, The Way West,” contain sophisticated, liberalist analyses of the political circumstances of Native Americans. The crucial point is that, as “critics form[ing] one of the key material institutions that support generic formations,” Sarris and Kael impacted majorly on the development of Australian gothic cinema, in the American context—impacted especially, one could say, on the (mis-)understanding of the land-based, uncanny politics of this mode in its Australian setting (McClain 54). Kael’s and Sarris’s reviews of My Brilliant Career, along with Judith Maslin’s review, contain traits similar to those considered in depth in the reviews studied above. Future research might usefully study this significant impact more closely, weaving in an awareness of the developing dynamics of global film productions and co-productions since the 1970s, and thereby focusing on Australian gothic as international cinema. Was, for example, the political impact of later films like The Proposition influenced, even marginally, by the (mis-)readings of Sarris and Kael? In conclusion here, it suffices to note that, even as the American reviewers reduced Australian cinema art to “blank” documentary or “neutral” anthropology, nevertheless they evidenced, in their strand-two responses, the power of the land (as presented in the cinematography and mise-en-scène) to call out—across an increasingly globalized domain of cinematic reception—for the fundamental importance of the connection between politics and art. Forging this connection, in which all lands and the peoples of all lands are implicated, should be, perhaps, the primary and ongoing concern of national and global cinemas of the uncanny, gothic mode, or perhaps even any mode. References Casablanca. Dir. Michael Curtiz. Warner Bros, 1942. Falconer, Delia. “Introduction.” The Penguin Book of the Road. Ed. Delia Falconer. Melbourne: Viking-Penguin Books, 2008. xi-xxvi. Gibson, Ross. South of the West: Postcolonialism and the Narrative Construction of Australia. Bloomington, Indiana: Indiana University Press, 1992. Godden, Matt. “An Essay on Australian New Wave Cinema.” 9 Jan. 2013. 18 Aug. 2014 ‹http://www.golgotha.com.au/2013/01/09/an-essay-on-australian-new-wave-cinema/›. Gray, R. “Freud, ‘The Uncanny.’” 15 Nov. 2013. 18 Aug. 2014 ‹http://courses.washington.edu/freudlit/Uncanny.Notes.html›. Kael, Pauline. “Australians.” Review of My Brilliant Career. 15 Sep. 1980. Taking It All In. London: Marion Boyars, 1986. 54-62. Kael, Pauline. “Literary Echoes—Muffled.” Review of Outback [Wake in Fright]. 4 March 1972. Deeper into Movies. Boston: Atlantic Monthly Press-Little, Brown and Company, 1973. 413-419. Kael, Pauline. “Saddle Sore: El Dorado, The War Wagon, The Way West.” Kiss Kiss Bang Bang. London: Arrow Books, 1987. 38-46. Kael, Pauline. “Torrid Zone.” Review of The Year of Living Dangerously. 21 Feb. 1983. Taking It All In. London: Marion Boyars, 1986. 451-456. Mad Max 2: The Road Warrior. Dir. George Miller. Warner Bros, 1981. Maslin, Janet. “Film: Australian ‘Brilliant Career’ by Gillian Armstrong.” Review of My Brilliant Career. New York Times (6 Oct. 1979.): np. McClain, William. “Western, Go Home! Sergio Leone and the ‘Death of the Western’ in American Film Criticism.” Journal of Film and Video 62.1-2 (Spring/Summer 2010): 52-66. My Brilliant Career. Dir. Gillian Armstrong. Peace Arch, 1979. Picnic at Hanging Rock. Dir. Peter Weir. Picnic Productions, 1975. Rayner, Jonathan. Contemporary Australian Cinema: An Introduction. Manchester: Manchester University Press, 2000. Rueschmann, Eva. “Out of Place: Reading (Post) Colonial Landscapes as Gothic Space in Jane Campion’s Films.” Post Script (22 Dec. 2005). 18 Aug. 2014 ‹http://www.thefreelibrary.com/Out+of+place%3A+reading+%28post%29+colonial+landscapes+as+Gothic+space+in...-a0172169169›. Sarris, Andrew. “Films in Focus.” Review of My Brilliant Career. Village Voice (4 Feb. 1980): np. Sarris, Andrew. “Films in Focus: Journalistic Ethics in Java.” Review of The Year of Living Dangerously. Village Voice 28 (1 Feb. 1983): 59. Sarris, Andrew. “Liberation, Australian Style.” Review of My Brilliant Career. Village Voice (15 Oct. 1979): np. Sarris, Andrew. Politics and Cinema. New York: Columbia University Press, 1978. The Last Wave. Dir. Peter Weir. Ayer Productions, 1977. The Proposition. Dir. John Hillcoat. First Look Pictures, 2005. The Year of Living Dangerously. Dir. Peter Weir. MGM, 1982. Tsiolkas, Christos. “Citizen Kael.” Review of Pauline Kael: A Life in the Dark by Brian Kellow. The Monthly (Feb. 2012): 54-56. Wake in Fright. Dir. Ted Kotcheff. United Artists, 1971.

IntroductionRegional identity is a constant construction, in which landscape, human activity and cultural imaginary build a narrative of place. For the Tasmanian Midlands, the interactions between history, ecology and agriculture both define place and present problems in how to recognise, communicate and balance these interactions. In this sense, regionality is defined not so much as a relation of margin to centre, but as a specific accretion of environmental and cultural histories. According weight to more-than-human perspectives, a region can be seen as a constellation of plant, animal and human interactions and demands, where creative art and design can make space and give voice to the dynamics of exchange between the landscape and its inhabitants. Consideration of three recent art and design projects based in the Midlands reveal the potential for cross-disciplinary research, embedded in both environment and community, to create distinctive and specific forms of connectivity that articulate a regional identify.The Tasmanian Midlands have been identified as a biodiversity hotspot (Australian Government), with a long history of Aboriginal cultural management disrupted by colonial invasion. Recent archaeological work in the Midlands, including the Kerry Lodge Archaeology and Art Project, has focused on the use of convict labour during the nineteenth century in opening up the Midlands for settler agriculture and transport. Now, the Midlands are placed under increasing pressure by changing agricultural practices such as large-scale irrigation. At the same time as this intensification of agricultural activity, significant progress has been made in protecting, preserving and restoring endemic ecologies. This progress has come through non-government conservation organisations, especially Greening Australia and their program Tasmanian Island Ark, and private landowners placing land under conservation covenants. These pressures and conservation activities give rise to research opportunities in the biological sciences, but also pose challenges in communicating the value of conservation and research outcomes to a wider public. The Species Hotel project, beginning in 2016, engaged with the aims of restoration ecology through speculative design while The Marathon Project, a multi-year curatorial art project based on a single property that contains both conservation and commercially farmed zones.This article questions the role of regionality in these three interconnected projects—Kerry Lodge, Species Hotel, and Marathon—sited in the Tasmanian Midlands: the three projects share a concern with the specificities of the region through engagement with specifics sites and their histories and ecologies, while also acknowledging the forces that shape these sites as far more mobile and global in scope. It also considers the interdisciplinary nature of these projects, in the crossover of art and design with ecological, archaeological and agricultural practices of measuring and intervening in the land, where communication and interpretation may be in tension with functionality. These projects suggest ways of working that connect the ecological and the cultural spheres; importantly, they see rural locations as sites of knowledge production; they test the value of small-scale and ephemeral interventions to explore the place of art and design as intervention within colonised landscape.Regions are also defined by overlapping circles of control, interest, and authority. We test the claim that these projects, which operate through cross-disciplinary collaboration and network with a range of stakeholders and community groups, successfully benefit the region in which they are placed. We are particularly interested in the challenges of working across institutions which both claim and enact connections to the region without being centred there. These projects are initiatives resulting from, or in collaboration with, University of Tasmania, an institution that has taken a recent turn towards explicitly identifying as place-based yet the placement of the Midlands as the gap between campuses risks attenuating the institution’s claim to be of this place. Paul Carter, in his discussion of a regional, site-specific collaboration in Alice Springs, flags how processes of creative place-making—operating through mythopoetic and story-based strategies—requires a concrete rather than imagined community that actively engages a plurality of voices on the ground. We identify similar concerns in these art and design projects and argue that iterative and long-term creative projects enable a deeper grappling with the complexities of shared regional place-making. The Midlands is aptly named: as a region, it is defined by its geographical constraints and relationships to urban centres. Heading south from the northern city of Launceston, travellers on the Midland Highway see scores of farming properties networking continuously for around 175 kilometres south to the outskirts of Brighton, the last major township before the Tasmanian capital city of Hobart. The town of Ross straddles latitude 42 degrees south—a line that has historically divided Tasmania into the divisions of North and South. The region is characterised by extensive agricultural usage and small remnant patches of relatively open dry sclerophyll forest and lowland grassland enabled by its lower attitude and relatively flatter terrain. The Midlands sit between the mountainous central highlands of the Great Western Tiers and the Eastern Tiers, a continuous range of dolerite hills lying south of Ben Lomond that slope coastward to the Tasman Sea. This area stretches far beyond the view of the main highway, reaching east in the Deddington and Fingal valleys. Campbell Town is the primary stopping point for travellers, superseding the bypassed towns, which have faced problems with lowering population and resulting loss of facilities.Image 1: Southern Midland Landscape, Ross, Tasmania, 2018. Image Credit: Patrick Sutczak.Predominantly under private ownership, the Tasmanian Midlands are a contested and fractured landscape existing in a state of ecological tension that has occurred with the dominance of western agriculture. For over 200 years, farmers have continually shaped the land and carved it up into small fragments for different agricultural agendas, and this has resulted in significant endemic species decline (Mitchell et al.). The open vegetation was the product of cultural management of land by Tasmanian Aboriginal communities (Gammage), attractive to settlers during their distribution of land grants prior to the 1830s and a focus for settler violence. As documented cartographically in the Centre for 21st Century Humanities’ Colonial Frontier Massacres in Central and Eastern Australia 1788–1930, the period 1820–1835, and particularly during the Black War, saw the Midlands as central to the violent dispossession of Aboriginal landowners. Clements argues that the culture of violence during this period also reflected the brutalisation that the penal system imposed upon its subjects. The cultivation of agricultural land throughout the Midlands was enabled by the provision of unfree convict labour (Dillon). Many of the properties granted and established during the colonial period have been held in multi-generational family ownership through to the present.Within this patchwork of private ownership, the tension between visibility and privacy of the Midlands pastures and farmlands challenges the capacity for people to understand what role the Midlands plays in the greater Tasmanian ecology. Although half of Tasmania’s land areas are protected as national parks and reserves, the Midlands remains largely unprotected due to private ownership. When measured against Tasmania’s wilderness values and reputation, the dry pasturelands of the Midland region fail to capture an equivalent level of visual and experiential imagination. Jamie Kirkpatrick describes misconceptions of the Midlands when he writes of “[f]latness, dead and dying eucalypts, gorse, brown pastures, salt—environmental devastation […]—these are the common impression of those who first travel between Spring Hill and Launceston on the Midland Highway” (45). However, Kirkpatrick also emphasises the unique intimate and intricate qualities of this landscape, and its underlying resilience. In the face of the loss of paddock trees and remnants to irrigation, change in species due to pasture enrichment and introduction of new plant species, conservation initiatives that not only protect but also restore habitat are vital. The Tasmanian Midlands, then, are pastoral landscapes whose seeming monotonous continuity glosses over the radical changes experienced in the processes of colonisation and intensification of agriculture.Underlying the Present: Archaeology and Landscape in the Kerry Lodge ProjectThe major marker of the Midlands is the highway that bisects it. Running from Hobart to Launceston, the construction of a “great macadamised highway” (Department of Main Roads 10) between 1820–1850, and its ongoing maintenance, was a significant colonial project. The macadam technique, a nineteenth century innovation in road building which involved the laying of small pieces of stone to create a surface that was relatively water and frost resistant, required considerable but unskilled labour. The construction of the bridge at Kerry Lodge, in 1834–35, was simultaneous with significant bridge buildings at other major water crossings on the highway, (Department of Main Roads 16) and, as the first water crossing south of Launceston, was a pinch-point through which travel of prisoners could be monitored and controlled. Following the completion of the bridge, the site was used to house up to 60 male convicts in a road gang undergoing secondary punishment (1835–44) and then in a labour camp and hiring depot until 1847. At the time of the La Trobe report (1847), the buildings were noted as being in bad condition (Brand 142–43). After the station was disbanded, the use of the buildings reverted to the landowners for use in accommodation and agricultural storage.Archaeological research at Kerry Lodge, directed by Eleanor Casella, investigated the spatial and disciplinary structures of smaller probation and hiring depots and the living and working conditions of supervisory staff. Across three seasons (2015, 2016, 2018), the emerging themes of discipline and control and as well as labour were borne out by excavations across the site, focusing on remnants of buildings close to the bridge. This first season also piloted the co-presence of a curatorial art project, which grew across the season to include eleven practitioners in visual art, theatre and poetry, and three exhibition outcomes. As a crucial process for the curatorial art project, creative practitioners spent time on site as participants and observers, which enabled the development of responses that interrogated the research processes of archaeological fieldwork as well as making connections to the wider historical and cultural context of the site. Immersed in the mundane tasks of archaeological fieldwork, the practitioners involved became simultaneously focused on repetitive actions while contemplating the deep time contained within earth. This experience then informed the development of creative works interrogating embodied processes as a language of site.The outcome from the first fieldwork season was earthspoke, an exhibition shown at Sawtooth, an artist-run initiative in Launceston in 2015, and later re-installed in Franklin House, a National Trust property in the southern suburbs of Launceston.Images 2 and 3: earthspoke, 2015, Installation View at Sawtooth ARI (top) and Franklin House (bottom). Image Credits: Melanie de Ruyter.This recontextualisation of the work, from contemporary ARI (artist run initiative) gallery to National Trust property enabled the project to reach different audiences but also raised questions about the emphases that these exhibition contexts placed on the work. Within the white cube space of the contemporary gallery, connections to site became more abstracted while the educational and heritage functions of the National Trust property added further context and unintended connotations to the art works.Image 4: Strata, 2017, Installation View. Image Credit: Karen Hall.The two subsequent exhibitions, Lines of Site (2016) and Strata (2017), continued to test the relationship between site and gallery, through works that rematerialised the absences on site and connected embodied experiences of convict and archaeological labour. The most recent iteration of the project, Strata, part of the Ten Days on the Island art festival in 2017, involved installing works at the site, marking with their presence the traces, fragments and voids that had been reburied when the landscape returned to agricultural use following the excavations. Here, the interpretive function of the works directly addressed the layered histories of the landscape and underscored the scope of the human interventions and changes over time within the pastoral landscape. The interpretative role of the artworks formed part of a wider, multidisciplinary approach to research and communication within the project. University of Manchester archaeology staff and postgraduate students directed the excavations, using volunteers from the Launceston Historical Society. Staff from Launceston’s Queen Victorian Museum and Art Gallery brought their archival and collection-based expertise to the site rather than simply receiving stored finds as a repository, supporting immediate interpretation and contextualisation of objects. In 2018, participation from the University of Tasmania School of Education enabled a larger number of on-site educational activities than afforded by previous open days. These multi-disciplinary and multi-organisational networks, drawn together provisionally in a shared time and place, provided rich opportunities for dialogue. However, the challenges of sustaining these exchanges have meant ongoing collaborations have become more sporadic, reflecting different institutional priorities and competing demands on participants. Even within long-term projects, continued engagement with stakeholders can be a challenge: while enabling an emerging and concrete sense of community, the time span gives greater vulnerability to external pressures. Making Home: Ecological Restoration and Community Engagement in the Species Hotel ProjectImages 5 and 6: Selected Species Hotels, Ross, Tasmania, 2018. Image Credits: Patrick Sutczak. The Species Hotels stand sentinel over a river of saplings, providing shelter for animal communities within close range of a small town. At the township of Ross in the Southern Midlands, work was initiated by restoration ecologists to address the lack of substantial animal shelter belts on a number of major properties in the area. The Tasmania Island Ark is a major Greening Australia restoration ecology initiative, connecting 6000 hectares of habitat across the Midlands. Linking larger forest areas in the Eastern Tiers and Central Highlands as well as isolated patches of remnant native vegetation, the Ark project is vital to the ongoing survival of local plant and animal species under pressure from human interventions and climate change. With fragmentation of bush and native grasslands in the Midland landscape resulting in vast open plains, the ability for animals to adapt to pasturelands without shelter has resulted in significant decline as animals such as the critically endangered Eastern Barred Bandicoot struggle to feed, move, and avoid predators (Cranney). In 2014 mass plantings of native vegetation were undertaken along 16km of the serpentine Macquarie River as part of two habitat corridors designed to bring connectivity back to the region. While the plantings were being established a public art project was conceived that would merge design with practical application to assist animals in the area, and draw community and public attention to the work that was being done in re-establishing native forests. The Species Hotel project, which began in 2016, emerged from a collaboration between Greening Australia and the University of Tasmania’s School of Architecture and Design, the School of Land and Food, the Tasmanian College of the Arts and the ARC Centre for Forest Value, with funding from the Ian Potter Foundation. The initial focus of the project was the development of interventions in the landscape that could address the specific habitat needs of the insect, small mammal, and bird species that are under threat. First-year Architecture students were invited to design a series of structures with the brief that they would act as ‘Species Hotels’, and once created would be installed among the plantings as structures that could be inhabited or act as protection. After installation, the privately-owned land would be reconfigured so to allow public access and observation of the hotels, by residents and visitors alike. Early in the project’s development, a concern was raised during a Ross community communication and consultation event that the surrounding landscape and its vistas would be dramatically altered with the re-introduced forest. While momentary and resolved, a subtle yet obvious tension surfaced that questioned the re-writing of an established community’s visual landscape literacy by non-residents. Compact and picturesque, the architectural, historical and cultural qualities of Ross and its location were not only admired by residents, but established a regional identity. During the six-week intensive project, the community reach was expanded beyond the institution and involved over 100 people including landowners, artists, scientists and school children from the region (Wright), attempting to address and channel the concerns of residents about the changing landscape. The multiple timescales of this iterative project—from intensive moments of collaboration between stakeholders to the more-than-human time of tree growth—open spaces for regional identity to shift as both as place and community. Part of the design brief was the use of fully biodegradable materials: the Species Hotels are not expected to last forever. The actual installation of the Species Hotelson site took longer than planned due to weather conditions, but once on site they were weathering in, showing signs of insect and bird habitation. This animal activity created an opportunity for ongoing engagement. Further activities generated from the initial iteration of Species Hotel were the Species Hotel Day in 2017, held at the Ross Community Hall where presentations by scientists and designers provided feedback to the local community and presented opportunities for further design engagement in the production of ephemeral ‘species seed pies’ placed out in and around Ross. Architecture and Design students have gone on to develop more examples of ‘ecological furniture’ with a current focus on insect housing as well as extrapolating from the installation of the Species Hotels to generate a VR visualisation of the surrounding landscape, game design and participatory movement work that was presented as part of the Junction Arts Festival program in Launceston, 2017. The intersections of technologies and activities amplified the lived in and living qualities of the Species Hotels, not only adding to the connectivity of social and environmental actions on site and beyond, but also making a statement about the shared ownership this project enabled.Working Property: Collaboration and Dialogues in The Marathon Project The potential of iterative projects that engage with environmental concerns amid questions of access, stewardship and dialogue is also demonstrated in The Marathon Project, a collaborative art project that took place between 2015 and 2017. Situated in the Northern Midland region of Deddington alongside the banks of the Nile River the property of Marathon became the focal point for a small group of artists, ecologists and theorists to converge and engage with a pastoral landscape over time that was unfamiliar to many of them. Through a series of weekend camps and day trips, the participants were able to explore and follow their own creative and investigative agendas. The project was conceived by the landowners who share a passion for the history of the area, their land, and ideas of custodianship and ecological responsibility. The intentions of the project initially were to inspire creative work alongside access, engagement and dialogue about land, agriculture and Deddington itself. As a very small town on the Northern Midland fringe, Deddington is located toward the Eastern Tiers at the foothills of the Ben Lomond mountain ranges. Historically, Deddington is best known as the location of renowned 19th century landscape painter John Glover’s residence, Patterdale. After Glover’s death in 1849, the property steadily fell into disrepair and a recent private restoration effort of the home, studio and grounds has seen renewed interest in the cultural significance of the region. With that in mind, and with Marathon a neighbouring property, participants in the project were able to experience the area and research its past and present as a part of a network of working properties, but also encouraging conversation around the region as a contested and documented place of settlement and subsequent violence toward the Aboriginal people. Marathon is a working property, yet also a vital and fragile ecosystem. Marathon consists of 1430 hectares, of which around 300 lowland hectares are currently used for sheep grazing. The paddocks retain their productivity, function and potential to return to native grassland, while thickets of gorse are plentiful, an example of an invasive species difficult to control. The rest of the property comprises eucalypt woodlands and native grasslands that have been protected under a conservation covenant by the landowners since 2003. The Marathon creek and the Nile River mark the boundary between the functional paddocks and the uncultivated hills and are actively managed in the interface between native and introduced species of flora and fauna. This covenant aimed to preserve these landscapes, linking in with a wider pattern of organisations and landowners attempting to address significant ecological degradation and isolation of remnant bushland patches through restoration ecology. Measured against the visibility of Tasmania’s wilderness identity on the national and global stage, many of the ecological concerns affecting the Midlands go largely unnoticed. The Marathon Project was as much a project about visibility and communication as it was about art and landscape. Over the three years and with its 17 participants, The Marathon Project yielded three major exhibitions along with numerous public presentations and research outputs. The length of the project and the autonomy and perspectives of its participants allowed for connections to be formed, conversations initiated, and greater exposure to the productivity and sustainability complexities playing out on rural Midland properties. Like Kerry Lodge, the 2015 first year exhibition took place at Sawtooth ARI. The exhibition was a testing ground for artists, and a platform for audiences, to witness the cross-disciplinary outputs of work inspired by a single sheep grazing farm. The interest generated led to the rethinking of the 2016 exhibition and the need to broaden the scope of what the landowners and participants were trying to achieve. Image 7: Panel Discussion at Open Weekend, 2016. Image Credit: Ron Malor.In November 2016, The Marathon Project hosted an Open Weekend on the property encouraging audiences to visit, meet the artists, the landowners, and other invited guests from a number of restoration, conservation, and rehabilitation organisations. Titled Encounter, the event and accompanying exhibition displayed in the shearing shed, provided an opportunity for a rhizomatic effect with the public which was designed to inform and disseminate historical and contemporary perspectives of land and agriculture, access, ownership, visitation and interpretation. Concluding with a final exhibition in 2017 at the University of Tasmania’s Academy Gallery, The Marathon Project had built enough momentum to shape and inform the practice of its participants, the knowledge and imagination of the public who engaged with it, and make visible the precarity of the cultural and rural Midland identity.Image 8. Installation View of The Marathon Project Exhibition, 2017. Image Credit: Patrick Sutczak.ConclusionThe Marathon Project, Species Hotel and the Kerry Lodge Archaeology and Art Project all demonstrate the potential of site-based projects to articulate and address concerns that arise from the environmental and cultural conditions and histories of a region. Beyond the Midland fence line is a complex environment that needed to be experienced to be understood. Returning creative work to site, and opening up these intensified experiences of place to a public forms a key stage in all these projects. Beyond a commitment to site-specific practice and valuing the affective and didactic potential of on-site installation, these returns grapple with issues of access, visibility and absence that characterise the Midlands. Paul Carter describes his role in the convening of a “concretely self-realising creative community” in an initiative to construct a meeting-place in Alice Springs, a community defined and united in “its capacity to imagine change as a negotiation between past, present and future” (17). Within that regional context, storytelling, as an encounter between histories and cultures, became crucial in assembling a community that could in turn materialise story into place. In these Midlands projects, a looser assembly of participants with shared interests seek to engage with the intersections of plant, human and animal activities that constitute and negotiate the changing environment. The projects enabled moments of connection, of access, and of intervention: always informed by the complexities of belonging within regional locations.These projects also suggest the need to recognise the granularity of regionalism: the need to be attentive to the relations of site to bioregion, of private land to small town to regional centre. The numerous partnerships that allow such interconnect projects to flourish can be seen as a strength of regional areas, where proximity and scale can draw together sets of related institutions, organisations and individuals. However, the tensions and gaps within these projects reveal differing priorities, senses of ownership and even regional belonging. Questions of who will live with these project outcomes, who will access them, and on what terms, reveal inequalities of power. Negotiations of this uneven and uneasy terrain require a more nuanced account of projects that do not rely on the geographical labelling of regions to paper over the complexities and fractures within the social environment.These projects also share a commitment to the intersection of the social and natural environment. They recognise the inextricable entanglement of human and more than human agencies in shaping the landscape, and material consequences of colonialism and agricultural intensification. Through iteration and duration, the projects mobilise processes that are responsive and reflective while being anchored to the materiality of site. Warwick Mules suggests that “regions are a mixture of data and earth, historically made through the accumulation and condensation of material and informational configurations”. Cross-disciplinary exchanges enable all three projects to actively participate in data production, not interpretation or illustration afterwards. Mules’ call for ‘accumulation’ and ‘configuration’ as productive regional modes speaks directly to the practice-led methodologies employed by these projects. The Kerry Lodge and Marathon projects collect, arrange and transform material taken from each site to provisionally construct a regional material language, extended further in the dual presentation of the projects as off-site exhibitions and as interventions returning to site. The Species Hotel project shares that dual identity, where materials are chosen for their ability over time, habitation and decay to become incorporated into the site yet, through other iterations of the project, become digital presences that nonetheless invite an embodied engagement.These projects centre the Midlands as fertile ground for the production of knowledge and experiences that are distinctive and place-based, arising from the unique qualities of this place, its history and its ongoing challenges. Art and design practice enables connectivity to plant, animal and human communities, utilising cross-disciplinary collaborations to bring together further accumulations of the region’s intertwined cultural and ecological landscape.ReferencesAustralian Government Department of the Environment and Energy. Biodiversity Conservation. Canberra: Commonwealth of Australia, 2018. 1 Apr. 2019 <http://www.environment.gov.au/biodiversity/conservation>.Brand, Ian. The Convict Probation System: Van Diemen’s Land 1839–1854. Sandy Bay: Blubber Head Press, 1990.Carter, Paul. “Common Patterns: Narratives of ‘Mere Coincidence’ and the Production of Regions.” Creative Communities: Regional Inclusion & the Arts. Eds. Janet McDonald and Robert Mason. Bristol: Intellect, 2015. 13–30.Centre for 21st Century Humanities. Colonial Frontier Massacres in Central and Eastern Australia 1788–1930. Newcastle: Centre for 21st Century Humanitie, n.d. 1 Apr. 2019 <https://c21ch.newcastle.edu.au/colonialmassacres/>.Clements, Nicholas. The Black War: Fear, Sex and Resistance in Tasmania. St Lucia: U of Queensland P, 2014. Cranney, Kate. Ecological Science in the Tasmanian Midlands. Melbourne: Bush Heritage Australia, 2016. 1 Apr. 2019 <https://www.bushheritage.org.au/blog/ecological-science-in-the-tasmanian-midlands>.Davidson N. “Tasmanian Northern Midlands Restoration Project.” EMR Summaries, Journal of Ecological Management & Restoration, 2016. 10 Apr. 2019 <https://site.emrprojectsummaries.org/2016/03/07/tasmanian-northern-midlands-restoration-project/>.Department of Main Roads, Tasmania. Convicts & Carriageways: Tasmanian Road Development until 1880. Hobart: Tasmanian Government Printer, 1988.Dillon, Margaret. “Convict Labour and Colonial Society in the Campbell Town Police District: 1820–1839.” PhD Thesis. U of Tasmania, 2008. <https://eprints.utas.edu.au/7777/>.Gammage, Bill. The Biggest Estate on Earth: How Aborigines Made Australia. Crows Nest: Allen & Unwin, 2012.Greening Australia. Building Species Hotels, 2016. 1 Apr. 2019 <https://www.greeningaustralia.org.au/projects/building-species-hotels/>.Kerry Lodge Archaeology and Art Project. Kerry Lodge Convict Site. 10 Mar. 2019 <http://kerrylodge.squarespace.com/>.Kirkpatrick, James. “Natural History.” Midlands Bushweb, The Nature of the Midlands. Ed. Jo Dean. Longford: Midlands Bushweb, 2003. 45–57.Mitchell, Michael, Michael Lockwood, Susan Moore, and Sarah Clement. “Building Systems-Based Scenario Narratives for Novel Biodiversity Futures in an Agricultural Landscape.” Landscape and Urban Planning 145 (2016): 45–56.Mules, Warwick. “The Edges of the Earth: Critical Regionalism as an Aesthetics of the Singular.” Transformations 12 (2005). 1 Mar. 2019 <http://transformationsjournal.org/journal/issue_12/article_03.shtml>.The Marathon Project. <http://themarathonproject.virb.com/home>.University of Tasmania. Strategic Directions, Nov. 2018. 1 Mar. 2019 <https://www.utas.edu.au/vc/strategic-direction>.Wright L. “University of Tasmania Students Design ‘Species Hotels’ for Tasmania’s Wildlife.” Architecture AU 24 Oct. 2016. 1 Apr. 2019 <https://architectureau.com/articles/university-of-tasmania-students-design-species-hotels-for-tasmanias-wildlife/>.

Thesis (MScEng)--Stellenbosch University, 2013.
ENGLISH ABSTRACT: Road traffic accidents have been a global concern facing all countries. Approximately 1.2 million people are killed annually as a result of traffic accidents and 50 million are injured. More than 90 percent of road fatalities occur in the developing world which has only 48 percent of the world’s registered vehicles. Beyond the problem of road fatalities, road traffic accidents result in disability and long term injury. They also cause considerable economic losses to victims and their families and damage properties and infrastructures. In South Africa, pedestrian fatalities account for about 40 percent of all road traffic accidents. Behaviour patterns of both pedestrians and motorists at pedestrian crossings are the main influential factors of pedestrian accidents. This study investigates behaviour patterns of pedestrians negotiating different types of crossing facilities in the town of Stellenbosch, in South Africa. A total number of 17 pedestrian crossings were selected for the study on the basis of their geometric and operational characteristics. Video-based observations together with on-street interviews were used to understand crossing behaviour patterns, namely pedestrian walking speed, pedestrian delay, gaze behaviour, pedestrian-vehicle conflicts, pedestrian compliance with road traffic rules and gap-acceptance behaviour. Results of the study showed that male pedestrians walk more than female pedestrians. The 15th percentile crossing speed for all pedestrians observed while crossing was found to be 1.13 m/s whereas the mean crossing speed was found to be 1.48 m/s. Demographic variables appeared to significantly influence pedestrian walking speed. Male and younger pedestrians exhibited higher walking speeds than female and older pedestrians. Pedestrian walking speed was also found to be affected by group size, encumbrance, type of pedestrian facility and distraction while walking. However, no effects of conflicts and the presence of a pedestrian refuge on pedestrian walking speed were found in this study. A mean total delay of 5.10 seconds was found in this study. Male and younger pedestrians experienced shorter delay compared to female and older pedestrians. The type of pedestrian facility and traffic signals during which pedestrians arrived at the kerb and crossed appeared to be other influential factors of pedestrian delay. With regard to gaze behaviour, an average number of head movements ranged from 2 to 5 at the kerb and from 3 to 5 while crossing. Conflicts with motorists peaked where crossing distances were longer and traffic volume was heavy. A red light violation ranging from 82 to 87 percent was observed in this study and on-street surveys indicated that beliefs and attitudes towards traffic control devices and traffic environment significantly explained pedestrians’ unsafe crossing behaviour. The calculated critical gap and critical lag ranged from 2.19 to 3.90 seconds and the effect of crossing distance on gap-acceptance emerged in this study. Possible interventions are finally suggested.
AFRIKAANSE OPSOMMING: Padongelukke is 'n wêreldwye probleem wat al die lande in die gesig staar. Ongeveer 1,2 miljoen mense sterf jaarliks as 'n gevolg van verkeersongelukke en 50 miljoen word beseer. Meer as 90 persent van padsterftes kom voor in die ontwikkelende wêreld met slegs 48 persent van die wêreld se geregistreerde voertuie. Bo en behalwe die probleem van padsterftes, het padongelukke gestremdheid en lang termyn beserings tot gevolg. Dit veroorsaak ook aansienlike ekonomiese verliese vir die slagoffers en hul gesinne en skade aan eiendomme en infrastruktuur. In Suid-Afrika is voetgangersterftes verantwoordelik vir sowat 40% van alle padongelukke. Gedragspatrone van beide voetgangers en motoriste by voetoorgange is die belangrikste bepalende faktore van voetganger-ongelukke. Hierdie studie ondersoek gedragspatrone van voetgangers by verskillende tipes kruisings in die dorp van Stellenbosch Suid-Afrika. ʼn Totale aantal van 17 voetoorgange is gekies vir die studie op die basis van hul geometriese en operasionele eienskappe. Video-gebaseerde waarnemings saam met op-straat onderhoude is gebruik om kruising-gedragspatrone, naamlik voetganger stapspoed, voetganger vertraging, kyk gedrag, voetganger-voertuig konflikte, voetganger nakoming van padverkeersreëls en gaping-aanvaarding gedrag te verstaan. Resultate van die studie het getoon dat manlike voetgangers vinniger loop as vroulike voetgangers. Die 15de persentiel kruising spoed vir alle voetgangers waargeneem binne kruisings was 1,13 m/s, terwyl die gemiddelde kruising spoed 1,48 m/s is. Demografiese veranderlikes beïnvloed voetgangers loop-spoed. Manlik en jonger voetgangers loop vinniger as vroulike en ouer voetgangers. Voetgangers loop-spoed word ook geraak deur die grootte van die groep, die dra van items, die tipe voetganger-fasiliteit en afleiding terwyl geloop word. Daar is egter geen gevolge van konflikte op voetgangers loop-spoed in hierdie studie gevind nie. 'n Gemiddelde totale vertraging van 5,10 sekondes is in hierdie studie gevind. Manlik en jonger voetgangers ervaar korter vertraging in vergelyking met die vroulike en ouer voetgangers. Die tipe voetgangerfasiliteit en verkeerseine was ander invloedryke faktore van voetganger vertraging. Vir waarneming van die verkeer is gevind dat die gemiddelde aantal kopbewegings gewissel het van 2 tot 5 teen die randsteen en van 3 tot 5, tydens die kruising. Konflikte met motoriste het ʼn hoogtepunt bereik waar kruising afstande langer en verkeersvolume hoër was. Rooi lig oortredings wat wissel van 82 tot 87 persent is in hierdie studie waargeneem en op-straat opnames het aangedui dat houdings teenoor verkeer-beheer toestelle en die verkeersomgewing die voetgangers se onveilige kruising-gedrag verduidelik. Die berekende kritiese gaping het gewissel van 2,19 tot 3,90 sekondes en die effek van die kruisinglengte op gaping-aanvaarding het in hierdie studie na vore gekom. Moontlike intervensies word voorgestel.

Indiana University-Purdue University Indianapolis (IUPUI)
In recent decades, Petri nets (PNs) have been used to model traffic networks for different purposes, such as signal phase control, routing, and traffic flow estimation, etc. Because of the complex nature of traffic networks where both discrete and continuous dynamics come into play, the Hybrid Petri net (HPN) model becomes an important tool for the modeling and analysis of traffic networks. In Chapter 1 a brief historical summery about traffic systems control and then related work is mentioned followed by the major contributions in this research. Chapter 2 provides a theoretical background on Petri nets. In Chapter 3, we develop a HPN model for a single signalized intersection first, then we extend this model to study a simple traffic network that consists of two successive intersections. Time delays between different points of network are also considered in order to make the model suitable for analysis and simulation. In addition to HPN models, we also consider discrete Petri nets where their modeling simplicity enables the characterization of the occurrences of all events in the system. This discrete PN is particularly useful to give a higher-level representation of the traffic network and study its event occurrences and correlations. In Chapter 4, we build a discrete PN model to represent a traffic network with two successive intersections. However, we find that the model leads to unbounded places which cannot accurately reflect the dynamics of the traffic in terms of event occurrences. Hence, we introduce the Modified Binary Petri nets (MBPN) to overcome the limitation and resolve the confliction problem when we design our controllers. This MBPN model is a powerful tool and can be useful for the modeling and analysis of many other applications in traffic networks. Chapter 5 gives a summary for each chapter, provides conclusion and discusses future work for both discrete and hybrid Petri nets.