Academic literature on the topic 'Telecommunication Australia Traffic'

A smart city is an environment that uses innovative technologies to make networks and services more flexible, effective, and sustainable with the use of information, digital, and telecommunication technologies, improving the city’s operations for the benefit of its citizens. Most cities incorporate data acquisition elements from their own systems or those managed by subcontracted companies that can be used to optimise their resources: energy consumption, smart meters, lighting, irrigation water consumption, traffic data, camera images, waste collection, security systems, pollution meters, climate data, etc. The city-as-a-platform concept is becoming popular and it is increasingly evident that cities must have efficient management systems capable of deploying, for instance, IoT platforms, open data, etc., and of using artificial intelligence intensively. For many cities, data collection is not a problem, but managing and analysing data with the aim of optimising resources and improving the lives of citizens is. This article presents deepint.net, a platform for capturing, integrating, analysing, and creating dashboards, alert systems, optimisation models, etc. This article shows how deepint.net has been used to estimate pedestrian traffic on the streets of Melbourne (Australia) using the XGBoost algorithm. Given the current situation, it is advisable not to transit urban roads when overcrowded, thus, the model proposed in this paper (and implemented with deepint.net) facilitates the identification of areas with less pedestrian traffic. This use case is an example of an efficient crowd management system, implemented and operated via a platform that offers many possibilities for the management of the data collected in smart territories and cities.

Papers in the December 2018 issue of the Journal include discussion on 5G security, what’s next for the National Broadband Network, a technical paper on the conflicts in routing and UAV autonomy, HTTP traffic flow load balancing and an insight into how the use of location information affects privacy. The history of Australian telecommunications paper on impressions of an overseas visit by a lines engineer provides an insight into how knowledge transfer improves with the opportunity to study telecommunications in Europe, North America and Australia. The Journal welcomes contributions.

Papers in the December 2018 issue of the Journal include discussion on 5G security, what’s next for the National Broadband Network, a technical paper on the conflicts in routing and UAV autonomy, HTTP traffic flow load balancing and an insight into how the use of location information affects privacy. The history of Australian telecommunications paper on impressions of an overseas visit by a lines engineer provides an insight into how knowledge transfer improves with the opportunity to study telecommunications in Europe, North America and Australia. The Journal welcomes contributions.

Abstract. National economies are becoming increasingly dependent on the global telecommunications system – and in particular, its submarine cable infrastructure. We note that a variety of natural hazard processes are capable of damaging and destroying this infrastructure, both in deep water and at the coast. Some places within the global telecommunications system are already known to be bottlenecks or "choke points". Hawaii is just such a choke point and interestingly, Hawaii is also affected by numerous large magnitude natural hazard processes. Any damage to the submarine telecommunications infrastructure routed through Hawaii could result in significant impacts on the electronic flow of data and voice traffic, negatively affecting dependent economies such as Australia. We propose that proper risk assessments be undertaken at all bottlenecks in the global telecommunications system affected by natural hazards (such as tsunami). We use Hawaii as an example of the sort of research that should be undertaken.

Introduction In a period marked by the pervasiveness of new mobile technologies saturating urban areas of the Asia-Pacific region, it can be easy to forget the realities of life in the rural areas. In a location such as Australia, in which 80% of the population lives in urban areas, one must be reminded of the sociotechnological realities of rural existence where often-newer mobile communication devices cease to function. This paper focuses on these black spots – and often forgotten areas – where examples of older, mediated technologies such as UHF Citizen Band (CB) radios can be found as integral to practices of everyday rural life. As Anderson notes, constructs of the nation are formed through contested notions of what individuals and communities imagine and project as a sense of place. In Australia, one of the dominant contested imageries can be found in the urban and rural divide, a divide that is not just social and cultural but technological; it is marked by a digital divide. This divide neatly corresponds to the images of Australia experienced by Australians (predominantly living in urban areas) and exported tourist images of the rugged vast rural landscapes. The remote Australia Outback is a popular destination for domestic tourists. Its sparsely populated and rough terrain attracts tourists seeking a quintessentially Australian experience. Roads are often unmade and in poor condition. Fuel and food supplies and health services are widely separated and there is almost no permanent accommodation. Apart from a small number of regional centres there is no access to mobile phones or radio broadcasts. As a consequence tourists must be largely self sufficient. While the primary roads carry significant road traffic it is possible to drive all day on secondary roads without seeing another person. Isolation and self-sufficiency are both an attraction and a challenge. Travelling in campervans, towing caravans or camper trailers and staying in caravan parks, national parks, roadside stops or alone in the bush, tourists spend extended times in areas where there are few other tourists. Many tourists deal with this isolation by equipping their vehicles with CB radios. Depending on the terrain, they are able to listen to, and participate in conversations with other CB users within a 10-20 kilometre range. In some areas where there are repeater stations, the range of radio transmissions can be extended. This paper examines the role of these CB radios in the daily life of tourists in the Australian Outback. Theoretical Issues The links between travel, the new communications technologies and the diminished spatial-time divide have been explored by John Urry. According to Urry, mobile electronic devices make it possible for people “to leave traces of their selves in informational space” (266). Using these informational traces, mobile communication technologies ‘track’ the movements of travellers, enabling them to communicate synchronously. People become ’nodes in multiple networks of communication and mobility’ (266). Another consequence of readily available communication independent of location is for the meaning of social connections. Social encounters provide tourists with the opportunity to develop and affirm understandings of their shared common occupation of unfamiliar social and cultural landscapes (Harrison). Both transitory and enduring relationships provide information, companionship and resources that allow tourists to create, share and give meaning to their experiences (Stokowski). Communication technology also enables individuals to enter and remain part of social networks while physically absent and distant from them (Johnsen; Makimoto and Manners, Urry). The result is a “nomadic intimacy” in an everyday social and physical environment characterised by extended spaces and individual freedom to move around in these spaces (Fortunati). For travellers in the Australian Outback, this “nomadic intimacy” is both literal and metaphorical. Research has shown that travellers use mobile communications services and a range of other communication strategies to maintain a “symbolic proximity” with family, friends and colleagues (Wurtzel and Turner) and to promote a sense of “presence while absent”, or ‘co-presence’ (Gergen; Lury; Short, Williams and Christie; White and White, “Keeping Connected”; White and White, “Home and Away”). Central to the original notion of co-presence was that it was contingent on those involved in a given communication both being and feeling close enough to perceive each other and to be perceived in the course of their activities (Goffman). That is, the notion of co-presence initially referred to physical presence in face-to-face contact and interactions. However, increasing use of mobile phones in particular has meant that this sense of connection can be affirmed at a distance. But what happens when travellers do not have access to mobile phones and the Internet, and as a consequence, do not have access to their networks of family, friends and colleagues? How do they deal with travel and isolation in a harsh environment? These issues are the starting point for the present paper, which examines travellers’ experience of CB radio in the remote Australian Outback. This exploration of how the CB radio has been incorporated into the daily lives of these travellers can be seen as a contribution to an understanding of the domestication of mobile communications (Haddon). Methodology People were included in the study if they used CB radios while travelling in remote parts of Western Australian and the Northern Territory. The participants were approached in caravan parks, camping grounds and at roadside stops. Most were travelling in caravans while others were using camper trailers and campervans. Twenty-four travellers were interviewed, twelve men and twelve women. All were travelling with partners or spouses, and one group of two couples was travelling together. They ranged in age from twenty five to seventy years, and all were Australian residents. The duration of their travels varied from six weeks to eleven months. Participants were interviewed using a semi-structured interview schedule. The interviews were transcribed and then thematically coded with respect to regularly articulated points of view. Where points of view were distinctive, they were noted during the coding process as contrasting instances. While the relatively small sample size limits generalizability, the issues raised by the respondents provide insights into the meaning of CB radio use in the daily life of travellers in the Australian Outback. Findings Staying Safe The primary reason given for travelling with a CB radio was personal safety. The tourists interviewed were aware of the risks associated with travelling in the Outback. Health emergencies, car accidents and problems with tyres in a harsh and hot environment without ready access to water were often mentioned. ‘If you call a May Day someone will come out and answer…” (Female, 55). Another interviewee reported that: Last year we helped some folk who were bogged in the sand right at the end of the road in the middle of nowhere. The wife just started calling the various channels explaining that they were bogged and asking whether there was anyone out there….We went and towed them out. …. It would have been a long walk for them to get help. (Female, 55) Even though most interviewees had not themselves experienced a personal emergency, many recounted stories about how CB radio had been used to come to the aid of someone in distress. Road conditions were another concern. Travellers were often rightly very concerned about hazards ahead. One traveller noted: You are always going to hear someone who gives you an insight as to what is happening up ahead on the road. If there’s an accident up ahead someone’s going to get on the radio and let people know. Or there could be road works or the road could be shitty. (Male, 50) Safety arose in another context. Tourists share the rough and often dusty roads with road trains towing up to three trailers. These vehicles can be 50 metres long. A road train creates wind turbulence when it passes a car and trailer or caravan and the dust it raises reduces visibility. Because of this car drivers and caravanners need to be extremely careful when they pass or are passed by one. Passing a road train at 100 km can take 2.5km. Interviewees reported that they communicated with road train drivers to negotiate a safe time and place to pass. One caravanner noted: Sometimes you see a road train coming up behind you. You call him up and say ” I’ll pull over for you mate and slow down and you go”. You use it a lot because it’s safer. We are not in a hurry. Road trains are working and they are in a hurry and he (sic.) is bigger, so he has the right of way. (Male, 50) As with the dominant rationale for installing and using a CB radio, Rice and Katz showed that concern about safety is the primary motive for women acquiring a mobile phone, and safety was also important for men. The social contact enabled by CB radio provided a means of tracking the movements of other travellers who were nearby. This tracking ability engendered a sense of comfort and enabled them to communicate and exchange information synchronously in a potentially dangerous environment. As a consequence, a ‘metaworld’ (Suvantola) of ‘informational traces’ (Urry) was created. Making Oneself Known All interactions entail conventions and signals that enable a conversation to commence. These conventions were also seen to apply to CB conversations. Driving in a car or truck involves being physically enclosed with the drivers and passengers being either invisible or only partially visible to other travellers. Caravanners deal with this lack of visibility in a number of ways. Many have their first names, the name of their caravan and the channel they use on the rear of their van. A typical sign was “Bill and Rose, Travelling Everywhere, Channel 18” or “Harry and Mary, Bugger Work, Gone Fishing”, Channel 18” clearly visible to anyone coming from behind. (The male partner’s name was invariably first.) A sign that identified the occupants was seen as an invitation to chat by other travellers. One traveller said that if he saw such a sign he would call up by saying: “Hello Harry and Mary”. From then on who knows where it goes. It depends on the people. If someone comes back really cheery and a bit cheeky I can be cheery and cheeky back. (Male, 50) The names of caravans were used in other more personal ways. One couple from South Africa had given their van a Zulu name and that was seen as a way of identifying their origins and encouraging a specific kind of conversation while they were on the road. This couple reported that People call us up and ask us what it means. We have lots of calls about that. We’ve had more conversations about that than anything else. (Male, 67) Another caravanner reported that he had seen a van with “Nanna and Poppa’ on the back. They used that as a cue to start a conversation about their grandchildren. But caravan names linked to their CB radio channel can have a deeper personal meaning. One couple had their first names and the number 58 on the rear of their van. (The number 58 is beyond the range of CB channels.) On further questioning the number 58 was revealed to be the football club number of a daughter who had died. The sign was an attempt to deal with their grief and its public display a way of entering into a conversation about grief and loss. It has probably backfired because it puts people back into their shell because they think “We don’t want to talk about death”. But because of the sign we’ve met people who’ve lost a child too. (Male, 50) As Featherstone notes, drivers develop competence in switching between a range of communicative modes while they are travelling. These range from body gestures to formal signalling devices on other cars. Signage on caravans designed to invite conversation was a specialised signalling device specific to the CB user. Talking Loneliness was another theme emerging from the interviews. One of the attractions of the Outback is its sparse population. As one interviewee noted ‘You can travel all day and not see another soul’ (Female, 35). But this loneliness can be a challenge. Some of these roads are pretty lonely, the radio lets you know that there’s somebody else out there. (Male, 54) Hearing other travellers talk was comforting. As with previous research showing that travellers use mobile communications services to maintain a “symbolic proximity” (Gergen; Lury; Short, Williams and Christie; White and White, “Keeping Connected”) the CB conversations enabled the travellers to feel this sense of connection. These interactions also offered them the possibility of converting mediated relationships into face-to-face encounters along the road. That is, some travellers reported that CB-based chats with people while they were driving would lead to a decision to stop along the road for a shared morning tea or lunch. Conventions governed the use of specific channels. Some of these are government regulated, while others are user generated. For instance, Channels 18 and 40, were seen as ‘working channels’. Some interviewees felt very strongly about people who ‘cluttered up’ these channels and moved to another unused channel when they wanted to have an extended conversation. One couple was unaware of the local convention and could not understand why no one was calling them up. They later discovered that they were on the ‘wrong channel’. Interviewees travelling in a convoy would use the standard channel for travellers and then agree to move to another channel of their choice. When we travelling in a convoy we go off Channel 18 and use another channel to talk. The girls love it to talk about their knitting and work out what they’ve done wrong. We sometimes tell jokes. Also we work out what we are going to do in the next town. (Male, 67) These extended conversations parallel the lengthy conversations between drivers equipped with CB radio in the United States during the 1970’s which Dannaher described as ‘as diverse as those found at a cocktail party’. They also provided a sense of the “nomadic intimacy” described by Fortunati. Eavesdropping While travellers used Channel 18 for conversations they set their radio to automatically scan all forty channels. When a conversation was located the radio would stop scanning and they could listen to what was being said. This meant that travellers would overhear conversations between strangers. We scan all the channels so you can hear anyone coming up behind, especially trucks and you can hear them say “that damn caravan” and you can say ’ that damn caravan will pull over at the first opportunity.” (Female, 44) But the act of listening in to other people’s conversations created moral dilemmas for some travellers. One interviewee described it as “voyeurism for the ears”. While she described listening to farm conversations as giving her an insight into daily life on huge cattle station she was tempted to butt into one conversation that she was listening to. On reflection she decided against entering the conversation. She said: I didn’t want them to know that we were eavesdropping on their conversation. I’d be embarrassed if a third-party knew that we were listening in. I guess that I’ve been taught that you shouldn’t listen in to other people’s conversations. It’s not good manners… (Female, 35) When travellers overheard conversations between road train or truck drivers they had mixed responses. These conversations were often sexually loaded and seen as coarse by the middle class travellers. Some were forgiving of the conversational excesses, distinguishing themselves from the rough and tumble world of the ‘truckies’. One traveller noted that the truck drivers use a lot of bad language, but you’ve got to go with that, because that’s the type of people they are. But you have to go with the flow. We know that we are ‘playing’ and the truckies are ‘working’ so you have to be considerate to them. (Female, 50) While the language of the truck drivers was often threatening to middle class travellers, overhearing their conversations was also seen as a comfort. One traveller remarked that sometimes you hear truckies talking about their families and they obviously know each other. It’s kind of nice to see how they think. (Female, 50) Travellers had similar feelings when they overheard conversations from cattle stations. Also, local cattle station workers and their families would use CB radios for their social and working communications. Travellers would often overhear these conversations. One traveller noted that when we are driving through a cattle station we work out which channel they are using, and we lock it on that one. And then we listen until they are out of range. We are city people and listening to the station chatter gives us a bit of an insight into what it must be like as a farmer working land out here. And then we talk about the farmers’ conversations. (Female, 35) Another traveller noted: If you are travelling and there’s nothing you can see you can listen to the farmer talking to his wife or the kids. It’s absolutely awesome to hear conversations on radio. (Female, 67) This empathic listening allows the travellers to imagine the lives of others in settings quite different from those with which they are familiar. Furthermore, hearing farmers talking about fixing the fence in the left paddock or rounding up strays makes ‘you feel that you’re not alone’. The networking of the travellers’ social life arising from listening in to others meant that they were able to learn about the environment in which they found themselves, as well as enabling them to feel that they continued to remain embedded or ‘co-present’ in social relationships in circumstances of considerable physical isolation. Conclusions The accounts provided by tourists illustrated the way communications technologies – in this case, CB radio – enabled people to become ’nodes in multiple networks of communication and mobility’ described by Urry and to maintain ‘co-presence’. The CB radio allowed tourists to remain part of social networks while being physically absent from them (Gergen). Their responses also demonstrated the significance of CB radio in giving meaning to the experience of travel. The CB radio was shown to be an important part of the travel experience in the remote Australian Outback. The use of CB made it possible for travellers in the Australian Outback to obtain information vital for the safe traverse of the huge distances and isolated roads. The technology enabled them to break down the atomism and frontier-like isolation of the highway. Drivers and their passengers could reach out to other travellers and avoid remaining unconnected strangers. Long hours on the road could be dealt with by listening in on others’ conversations, even though some ambivalence was expressed about this activity. Despite an awareness that they could be violating the personal boundaries of others and that their conversations could be overheard, the use of CB radio meant staying safe and enjoying guilty pleasures. Imagined or not. References Anderson, Benedict. Imagined Community. London: Verso, 1983 Dannefer, W. Dale. “The C.B. Phenomenon: A Sociological Appraisal.” Journal of Popular Culture 12 (1979): 611-19. Featherstone, Mike. “Automobilities: An Introduction.” Theory, Culture and Society 21.4/5 (2004): 1-24. Fortunati, Leopoldina. “The Mobile Phone: Towards New Categories and Social Relations.” Information, Communication and Society 5.2 (2002): 513-28. Gergen, Kenneth. “The Challenge of Absence Presence.” Perpetual Contact: Mobile Communications, Private Talk, Public Performance. Ed. James Katz. Cambridge: Cambridge UP, 2002. 227-54. Goffman, Erving. Behavior in Public Places: Notes on the Social Organization of Gatherings. New York: Free Press of Glencoe, 1963. Haddon, Leslie. “Domestication and Mobile Telephony.” Machines That Become Us: The Social Context of Personal Communication Technology. Ed. James E. Katz. New Brunswick, N.J.: Transaction Publishers, 2003. 43-55. Harrison, Julia. Being a Tourist: Finding Meaning in Pleasure Travel. Vancouver: U of British Columbia P, 2003. Johnsen, Truls Erik. “The Social Context of Mobile Use of Norwegian Teens.” Machines That Become Us: The Social Context of Personal Communication Technology. Ed. James Katz. London: Transaction Publishers, 2003. 161-69. Ling, Richard. “One Can Talk about Common Manners! The Use of Mobile Telephones in Inappropiate Situations.” Communications on the Move: The Experience of Mobile Telephony in the 1990s (Report of Cost 248: The Future European Telecommunications User Mobile Workgroup). Ed. Leslie Haddon. Farsta, Sweden: Telia AB, 1997. 97-120. Lury, Celia. “The Objects of Travel.” Touring Cultures: Transformations of Travel and Theory. Eds. Chris Rojek and John Urry. London: Routledge, 1997. 75-95. Rice, Ronald E., and James E. Katz. “Comparing Internet and Mobile Phone Usage: Digital Divides of Usage, Adoption and Dropouts.” Telecommunications Policy 27 (2003): 597-623. Short, J., E. Williams, and B. Christie. The Social Psychology of Telecommunications. New York: Wiley, 1976. Stokowski, Patricia. “Social Networks and Tourist Behavior.” American Behavioural Scientist 36.2 (1992): 212-21. Suvantola, Jaakko. Tourist’s Experience of Place. Aldershot: Ashgate, 2002. Urry, John. “Mobility and Proximity.” Sociology 36.2 (2002): 255-74. ———. “Social Networks, Travel and Talk.” British Journal of Sociology 54.2 (2003): 155-75. White, Naomi Rosh, and Peter B. White. “Home and Away: Tourists in a Connected World.” Annals of Tourism Research 34. 1 (2007): 88-104. White, Peter B., and Naomi Rosh White. “Keeping Connected: Travelling with the Telephone.” Convergence: The International Journal of Research into New Media Technologies 11.2 (2005): 102-18. Williams, Stephen, and Lynda Williams. “Space Invaders: The Negotiation of Teenage Boundaries through the Mobile Phone.” The Sociological Review 53.2 (2005): 314-31. Wurtzel, Alan H., and Colin Turner. “Latent Functions of the Telephone: What Missing the Extension Means.” The Social Impact of the Telephone. Ed. Ithiel de Sola Pool. Cambridge: MIT Press, 1977. 246-61. Citation reference for this article MLA Style White, Peter B., and Naomi White. "Staying Safe and Guilty Pleasures: Tourists and CB Radio in the Australian Outback." M/C Journal 10.1 (2007). echo date('d M. Y'); ?> <http://journal.media-culture.org.au/0703/11-white-white.php>. APA Style White, P., and N. White. (Mar. 2007) "Staying Safe and Guilty Pleasures: Tourists and CB Radio in the Australian Outback," M/C Journal, 10(1). Retrieved echo date('d M. Y'); ?> from <http://journal.media-culture.org.au/0703/11-white-white.php>.

IntroductionSupermarkets are functionally challenging environments for people with vision impairments. A supermarket is likely to house an average of 45,000 products in a median floor-space of 4,529 square meters and many visually impaired people are unable to shop without assistance, which greatly impedes personal independence (Nicholson et al.). The task of selecting goods in a supermarket is an “activity that is expressive of agency, identity and creativity” (Sutherland) from which many vision-impaired persons are excluded. In response to this, a number of proof of concept (demonstrating feasibility) and prototype assistive technologies are being developed which aim to use smart phones as potential sensorial aides for vision impaired persons. In this paper, I discuss two such prototypic technologies, Shop Talk and BlindShopping. I engage with this issue’s list theme by suggesting that, on the one hand, list making is a uniquely human activity that demonstrates our need for order, reliance on memory, reveals our idiosyncrasies, and provides insights into our private lives (Keaggy 12). On the other hand, lists feature in the creation of spatial inventories that represent physical environments (Perec 3-4, 9-10). The use of lists in the architecture of assistive technologies for shopping illuminates the interaction between these two modalities of list use where items contained in a list are not only textual but also cartographic elements that link the material and immaterial in space and time (Haber 63). I argue that despite the emancipatory potential of assistive shopping technologies, their efficacy in practical situations is highly dependent on the extent to which they can integrate a number of lists to produce representations of space that are meaningful for vision impaired users. I suggest that the extent to which these prototypes may translate to becoming commercially viable, widely adopted technologies is heavily reliant upon commercial and institutional infrastructures, data sources, and regulation. Thus, their design, manufacture and adoption-potential are shaped by the extent to which certain data inventories are accessible and made interoperable. To overcome such constraints, it is important to better understand the “spatial syntax” associated with the shopping task for a vision impaired person; that is, the connected ordering of real and virtual spatial elements that result in a supermarket as a knowable space within which an assisted “spatial practice” of shopping can occur (Kellerman 148, Lefebvre 16).In what follows, I use the concept of lists to discuss the production of supermarket-space in relation to the enabling and disabling potentials of assistive technologies. First, I discuss mobile digital technologies relative to disability and impairment and describe how the shopping task produces a disabling spatial practice. Second, I present a case study showing how assistive technologies function in aiding vision impaired users in completing the task of supermarket shopping. Third, I discuss various factors that may inhibit the liberating potential of technology assisted shopping by vision-impaired people. Addressing Shopping as a Disabling Spatial Practice Consider how a shopping list might inform one’s experience of supermarket space. The way shopping lists are written demonstrate the variability in the logic that governs list writing. As Bill Keaggy demonstrates in his found shopping list Web project and subsequent book, Milk, Eggs, Vodka, a shopping list may be written on a variety of materials, be arranged in a number of orientations, and the writer may use differing textual attributes, such as size or underlining to show emphasis. The writer may use longhand, abbreviate, write neatly, scribble, and use an array of alternate spelling and naming conventions. For example, items may be listed based on knowledge of the location of products, they may be arranged on a list as a result of an inventory of a pantry or fridge, or they may be copied in the order they appear in a recipe. Whilst shopping, some may follow strictly the order of their list, crossing back and forth between aisles. Some may work through their list item-by-item, perhaps forward scanning to achieve greater economies of time and space. As a person shops, their memory may be stimulated by visual cues reminding them of products they need that may not be included on their list. For the vision impaired, this task is near impossible to complete without the assistance of a relative, friend, agency volunteer, or store employee. Such forms of assistance are often unsatisfactory, as delays may be caused due to the unavailability of an assistant, or the assistant having limited literacy, knowledge, or patience to adequately meet the shopper’s needs. Home delivery services, though readily available, impede personal independence (Nicholson et al.). Katie Ellis and Mike Kent argue that “an impairment becomes a disability due to the impact of prevailing ableist social structures” (3). It can be said, then, that supermarkets function as a disability producing space for the vision impaired shopper. For the vision impaired, a supermarket is a “hegemonic modern visual infrastructure” where, for example, merchandisers may reposition items regularly to induce customers to explore areas of the shop that they wouldn’t usually, a move which adds to the difficulty faced by those customers with impaired vision who work on the assumption that items remain as they usually are (Schillmeier 161).In addressing this issue, much emphasis has been placed on the potential of mobile communications technologies in affording vision impaired users greater mobility and flexibility (Jolley 27). However, as Gerard Goggin argues, the adoption of mobile communication technologies has not necessarily “gone hand in hand with new personal and collective possibilities” given the limited access to standard features, even if the device is text-to-speech enabled (98). Issues with Digital Rights Management (DRM) limit the way a device accesses and reproduces information, and confusion over whether audio rights are needed to convert text-to-speech, impede the accessibility of mobile communications technologies for vision impaired users (Ellis and Kent 136). Accessibility and functionality issues like these arise out of the needs, desires, and expectations of the visually impaired as a user group being considered as an afterthought as opposed to a significant factor in the early phases of design and prototyping (Goggin 89). Thus, the development of assistive technologies for the vision impaired has been left to third parties who must adopt their solutions to fit within certain technical parameters. It is valuable to consider what is involved in the task of shopping in order to appreciate the considerations that must be made in the design of shopping intended assistive technologies. Shopping generally consists of five sub-tasks: travelling to the store; finding items in-store; paying for and bagging items at the register; exiting the store and getting home; and, the often overlooked task of putting items away once at home. In this process supermarkets exhibit a “trichotomous spatial ontology” consisting of locomotor space that a shopper moves around the store, haptic space in the immediate vicinity of the shopper, and search space where individual products are located (Nicholson et al.). In completing these tasks, a shopper will constantly be moving through and switching between all three of these spaces. In the next section I examine how assistive technologies function in producing supermarkets as both enabling and disabling spaces for the vision impaired. Assistive Technologies for Vision Impaired ShoppersJason Farman (43) and Adriana de Douza e Silva both argue that in many ways spaces have always acted as information interfaces where data of all types can reside. Global Positioning System (GPS), Radio Frequency Identification (RFID), and Quick Response (QR) codes all allow for practically every spatial encounter to be an encounter with information. Site-specific and location-aware technologies address the desire for meaningful representations of space for use in everyday situations by the vision impaired. Further, the possibility of an “always-on” connection to spatial information via a mobile phone with WiFi or 3G connections transforms spatial experience by “enfolding remote [and latent] contexts inside the present context” (de Souza e Silva). A range of GPS navigation systems adapted for vision-impaired users are currently on the market. Typically, these systems convert GPS information into text-to-speech instructions and are either standalone devices, such as the Trekker Breeze, or they use the compass, accelerometer, and 3G or WiFi functions found on most smart phones, such as Loadstone. Whilst both these products are adequate in guiding a vision-impaired user from their home to a supermarket, there are significant differences in their interfaces and data architectures. Trekker Breeze is a standalone hardware device that produces talking menus, maps, and GPS information. While its navigation functionality relies on a worldwide radio-navigation system that uses a constellation of 24 satellites to triangulate one’s position (May and LaPierre 263-64), its map and text-to-speech functionality relies on data on a DVD provided with the unit. Loadstone is an open source software system for Nokia devices that has been developed within the vision-impaired community. Loadstone is built on GNU General Public License (GPL) software and is developed from private and user based funding; this overcomes the issue of Trekker Breeze’s reliance on trading policies and pricing models of the few global vendors of satellite navigation data. Both products have significant shortcomings if viewed in the broader context of the five sub-tasks involved in shopping described above. Trekker Breeze and Loadstone require that additional devices be connected to it. In the case of Trekker Breeze it is a tactile keypad, and with Loadstone it is an aftermarket screen reader. To function optimally, Trekker Breeze requires that routes be pre-recorded and, according to a review conducted by the American Foundation for the Blind, it requires a 30-minute warm up time to properly orient itself. Both Trekker Breeze and Loadstone allow users to create and share Points of Interest (POI) databases showing the location of various places along a given route. Non-standard or duplicated user generated content in POI databases may, however, have a negative effect on usability (Ellis and Kent 2). Furthermore, GPS-based navigation systems are accurate to approximately ten metres, which means that users must rely on their own mobility skills when they are required to change direction or stop for traffic. This issue with GPS accuracy is more pronounced when a vision-impaired user is approaching a supermarket where they are likely to encounter environmental hazards with greater frequency and both pedestrian and vehicular traffic in greater density. Here the relations between space defined and spaces poorly defined or undefined by the GPS device interact to produce the supermarket surrounds as a disabling space (Galloway). Prototype Systems for Supermarket Navigation and Product SelectionIn the discussion to follow, I look at two prototype systems using QR codes and RFID that are designed to be used in-store by vision-impaired shoppers. Shop Talk is a proof of concept system developed by researchers at Utah State University that uses synthetic verbal route directions to assist vision impaired shoppers with supermarket navigation, product search, and selection (Nicholson et al.). Its hardware consists of a portable computational unit, a numeric keypad, a wireless barcode scanner and base station, headphones for the user to receive the synthetic speech instructions, a USB hub to connect all the components, and a backpack to carry them (with the exception of the barcode scanner) which has been slightly modified with a plastic stabiliser to assist in correct positioning. Shop Talk represents the supermarket environment using two data structures. The first is comprised of two elements: a topological map of locomotor space that allows for directional labels of “left,” “right,” and “forward,” to be added to the supermarket floor plan; and, for navigation of haptic space, the supermarket inventory management system, which is used to create verbal descriptions of product information. The second data structure is a Barcode Connectivity Matrix (BCM), which associates each shelf barcode with several pieces of information such as aisle, aisle side, section, shelf, position, Universal Product Code (UPC) barcode, product description, and price. Nicholson et al. suggest that one of their “most immediate objectives for future work is to migrate the system to a more conventional mobile platform” such as a smart phone (see Mobile Shopping). The Personalisable Interactions with Resources on AMI-Enabled Mobile Dynamic Environments (PRIAmIDE) research group at the University of Deusto is also approaching Ambient Assisted Living (AAL) by exploring the smart phone’s sensing, communication, computing, and storage potential. As part of their work, the prototype system, BlindShopping, was developed to address the issue of assisted shopping using entirely off-the-shelf technology with minimal environmental adjustments to navigate the store and search, browse and select products (López-de-Ipiña et al. 34). Blind Shopping’s architecture is based on three components. Firstly, a navigation system provides the user with synthetic verbal instructions to users via headphones connected to the smart phone device being used in order to guide them around the store. This requires a RFID reader to be attached to the tip of the user’s white cane and road-marking-like RFID tag lines to be distributed throughout the aisles. A smartphone application processes the RFID data that is received by the smart phone via Bluetooth generating the verbal navigation commands as a result. Products are recognised by pointing a QR code reader enabled smart phone at an embossed code located on a shelf. The system is managed by a Rich Internet Application (RIA) interface, which operates by Web browser, and is used to register the RFID tags situated in the aisles and the QR codes located on shelves (López-de-Ipiña and 37-38). A typical use-scenario for Blind Shopping involves a user activating the system by tracing an “L” on the screen or issuing the “Location” voice command, which activates the supermarket navigation system which then asks the user to either touch an RFID floor marking with their cane or scan a QR code on a nearby shelf to orient the system. The application then asks the user to dictate the product or category of product that they wish to locate. The smart phone maintains a continuous Bluetooth connection with the RFID reader to keep track of user location at all times. By drawing a “P” or issuing the “Product” voice command, a user can switch the device into product recognition mode where the smart phone camera is pointed at an embossed QR code on a shelf to retrieve information about a product such as manufacturer, name, weight, and price, via synthetic speech (López-de-Ipiña et al. 38-39). Despite both systems aiming to operate with as little environmental adjustment as possible, as well as minimise the extent to which a supermarket would need to allocate infrastructural, administrative, and human resources to implementing assistive technologies for vision impaired shoppers, there will undoubtedly be significant establishment and maintenance costs associated with the adoption of production versions of systems resembling either prototype described in this paper. As both systems rely on data obtained from a server by invoking Web services, supermarkets would need to provide in-store WiFi. Further, both systems’ dependence on store inventory data would mean that commercial versions of either of these systems are likely to be supermarket specific or exclusive given that there will be policies in place that forbid access to inventory systems, which contain pricing information to third parties. Secondly, an assumption in the design of both prototypes is that the shopping task ends with the user arriving at home; this overlooks the important task of being able to recognise products in order to put them away or to use at a later time.The BCM and QR product recognition components of both respective prototypic systems associates information to products in order to assist users in the product search and selection sub-tasks. However, information such as use-by dates, discount offers, country of manufacture, country of manufacturer’s origin, nutritional information, and the labelling of products as Halal, Kosher, containing alcohol, nuts, gluten, lactose, phenylalanine, and so on, create further challenges in how different data sources are managed within the devices’ software architecture. The reliance of both systems on existing smartphone technology is also problematic. Changes in the production and uptake of mobile communication devices, and the software that they operate on, occurs rapidly. Once the fit-out of a retail space with the necessary instrumentation in order to accommodate a particular system has occurred, this system is unlikely to be able to cater to the requirement for frequent upgrades, as built environments are less flexible in the upgrading of their technological infrastructure (Kellerman 148). This sets up a scenario where the supermarket may persist as a disabling space due to a gap between the functional capacities of applications designed for mobile communication devices and the environments in which they are to be used. Lists and Disabling Spatial PracticeThe development and provision of access to assistive technologies and the data they rely upon is a commercial issue (Ellis and Kent 7). The use of assistive technologies in supermarket-spaces that rely on the inter-functional coordination of multiple inventories may have the unintended effect of excluding people with disabilities from access to legitimate content (Ellis and Kent 7). With de Certeau, we can ask of supermarket-space “What spatial practices correspond, in the area where discipline is manipulated, to these apparatuses that produce a disciplinary space?" (96).In designing assistive technologies, such as those discussed in this paper, developers must strive to achieve integration across multiple data inventories. Software architectures must be optimised to overcome issues relating to intellectual property, cross platform access, standardisation, fidelity, potential duplication, and mass-storage. This need for “cross sectioning,” however, “merely adds to the muddle” (Lefebvre 8). This is a predicament that only intensifies as space and objects in space become increasingly “representable” (Galloway), and as the impetus for the project of spatial politics for the vision impaired moves beyond representation to centre on access and meaning-making.ConclusionSupermarkets act as sites of hegemony, resistance, difference, and transformation, where the vision impaired and their allies resist the “repressive socialization of impaired bodies” through their own social movements relating to environmental accessibility and the technology assisted spatial practice of shopping (Gleeson 129). It is undeniable that the prototype technologies described in this paper, and those like it, indeed do have a great deal of emancipatory potential. However, it should be understood that these devices produce representations of supermarket-space as a simulation within a framework that attempts to mimic the real, and these representations are pre-determined by the industrial, technological, and regulatory forces that govern their production (Lefebvre 8). Thus, the potential of assistive technologies is dependent upon a range of constraints relating to data accessibility, and the interaction of various kinds of lists across the geographic area that surrounds the supermarket, locomotor, haptic, and search spaces of the supermarket, the home-space, and the internal spaces of a shopper’s imaginary. These interactions are important in contributing to the reproduction of disability in supermarkets through the use of assistive shopping technologies. The ways by which people make and read shopping lists complicate the relations between supermarket-space as location data and product inventories versus that which is intuited and experienced by a shopper (Sutherland). Not only should we be creating inventories of supermarket locomotor, haptic, and search spaces, the attention of developers working in this area of assistive technologies should look beyond the challenges of spatial representation and move towards a focus on issues of interoperability and expanded access of spatial inventory databases and data within and beyond supermarket-space.ReferencesDe Certeau, Michel. The Practice of Everyday Life. Berkeley: University of California Press, 1984. Print.De Souza e Silva, A. “From Cyber to Hybrid: Mobile Technologies As Interfaces of Hybrid Spaces.” Space and Culture 9.3 (2006): 261-78.Ellis, Katie, and Mike Kent. Disability and New Media. New York: Routledge, 2011.Farman, Jason. 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