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Thematische Bibliographien / Intersection sight distance / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Intersection sight distance“

Autor: Grafiati

Veröffentlicht am 30. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

Petcu, M. D., Claudia Petcu, and Carmen Răcănel. "Study About the Influence of the Road’s Angle Cut Slope in a “T” Intersection." Journal of Applied Engineering Sciences 14, no. 2 (2024): 308–15. https://doi.org/10.2478/jaes-2024-0038.

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Abstract The context in which this study is conducted is represented by the need to improve road safety at T-intersections, which can be visibility-critical locations and of the risk of accidents. Therefore, this study is important to identify and solve potential problems related to sight distance in road intersections. Case studies on sight distance in intersections are an effective way to assess the impact of the factors that influence it on road safety. Currently, the three-dimensional study allows us to analyze the visibility in detail according to the standards and obtain the sight distan

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Harwood, Douglas W., John M. Mason, and Robert E. Brydia. "Sight Distance for Stop-Controlled Intersections Based on Gap Acceptance." Transportation Research Record: Journal of the Transportation Research Board 1701, no. 1 (2000): 32–41. http://dx.doi.org/10.3141/1701-05.

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The current AASHTO policy for sight distance at Stop-controlled intersections is based on a model of the acceleration performance of a minor-road vehicle turning left or right onto a major road and the deceleration performance of the following major road vehicle. An alternative intersection sight distance model based on gap acceptance is developed and quantified. Field studies that were performed to determine the critical gaps appropriate for use in sight distance design are described. It is recommended that the sight distance along the major road for a passenger car at a Stop-controlled inter

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Lee, Soo-Beom, and William D. Berg. "Development of Safety-Based Level-of-Service Parameters for Two-Way Stop-Controlled Intersections." Transportation Research Record: Journal of the Transportation Research Board 1635, no. 1 (1998): 127–32. http://dx.doi.org/10.3141/1635-17.

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Current methods for evaluating level of service at two-way stop-controlled intersections do not account for safety considerations. One of the most important factors influencing intersection safety is the availability of adequate sight distance. However, current recommended intersection sight distance criteria do not explicitly consider variability in traffic composition, vehicle characteristics, pavement conditions, or driver characteristics such as perception-reaction time and minimum gap acceptance. Research was therefore undertaken to develop and validate a method where the safety of a two-

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Sushmitha, Ramireddy, Vattipally Bhanu Prakash Reddy, and KVR Ravishankar. "INFLUENCE OF SIGHT DISTANCE CHARACTERISTICS ON SAFETY OF INTERSECTIONS USING SURROGATE SAFETY MEASURES." Suranaree Journal of Science and Technology 30, no. 4 (2023): 010246(1–12). http://dx.doi.org/10.55766/sujst-2023-04-e01017.

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Recent road accident statistics indicate that more than 30% of accidents occur at intersections. Whereas, total percentage of intersections present in the entire road network is less than 2%. From design point of view, one way to ensure reduction of accidents at intersections is to provide sufficient sight distance and clear sight triangles. However, it was observed that even when minimum sight distance is provided, it does not ensure non-occurrence of accidents because available sight distance at intersection changes with time. Hence there is a need to understand the effect of sight distance

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Kilani, Omar, Maged Gouda, Jonas Weiß, and Karim El-Basyouny. "Safety Assessment of Urban Intersection Sight Distance Using Mobile LiDAR Data." Sustainability 13, no. 16 (2021): 9259. http://dx.doi.org/10.3390/su13169259.

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This paper proposes an automated framework that utilizes Light Detection and Ranging (LiDAR) point cloud data to map and detect road obstacles that impact drivers’ field of view at urban intersections. The framework facilitates the simulation of a driver’s field of vision to estimate the blockage percentage as they approach an intersection. Furthermore, a collision analysis is conducted to examine the relationship between poor visibility and safety. The visibility assessment was used to determine the blockage percentage as a function of intersection control type. The safety assessment indicate

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Achtemeier, Jacob, Curtis M. Craig, and Nichole L. Morris. "The Effects of Restricted Sight Distances on Drivers at Simulated Rural Intersections." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 63, no. 1 (2019): 2122–23. http://dx.doi.org/10.1177/1071181319631497.

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Short sight distances at rural intersections can result in reduced safety including drivers choosing smaller gaps between oncoming vehicles (Yan & Richards, 2010). Conversely, increased sight distances may result in improved driver confidence, but not safety as seen at rail crossings (Ward & Wilde, 1996). Thus, simply increasing sight distances may not result in linear gains in safety. Establishing appropriate lower and upper-visibility limits at rural intersections will minimize operational costs for clearing and grubbing labor and may reduce serious injury and fatal crashes by promot

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Awadallah, Faisal. "Intersection sight distance analysis and guidelines." Transport Policy 16, no. 4 (2009): 143–50. http://dx.doi.org/10.1016/j.tranpol.2009.04.001.

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Iwanowicz, Damian, and Radosław Klusek. "Impact of visibility on traffic Incidents at signalized intersections –a case study in Polish cities." Archives of Transport 73, no. 1 (2025): 53–78. https://doi.org/10.61089/aot2025.njtxqe79.

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In urban agglomerations, signalized intersections are common. However, in traffic management, safety-focused strategies are often sacrificed for traffic efficiency by allowing simultaneous multiple conflicting movements. We identified this issue by analyzing the most dangerous signalized intersections in several Polish cities. Our research evaluated whether obstructed sight distances between major and minor traffic streams could be a significant problem at these intersections. To achieve this, we employed existing models of visibility analysis related to stopping sight distance. We determined

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Easa, Said M. "Reliability Approach to Intersection Sight Distance Design." Transportation Research Record: Journal of the Transportation Research Board 1701, no. 1 (2000): 42–52. http://dx.doi.org/10.3141/1701-06.

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The intersection sight distance (ISD) design presented by AASHTO is based on extreme values of the component design variables such as design speed, perception–reaction time (a high percentile), and friction coefficient (a low percentile). A reliability method is presented, based on AASHTO, that does not rely on extreme values but instead considers the moments (mean and variance) of the probability distribution of each random variable. The method also accounts for correlations among the component random variables. In Cases I and II of AASHTO, the variations of the sight distance along both legs

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Himes, Scott, Kim Eccles, Kara Peach, Christopher M. Monsere, and Timothy J. Gates. "Estimating the Safety Effects of Intersection Sight Distance at Unsignalized Intersections." Transportation Research Record: Journal of the Transportation Research Board 2588, no. 1 (2016): 71–79. http://dx.doi.org/10.3141/2588-08.

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Salwan, Akshay, Said M. Easa, Narayana Raju, and Shriniwas Arkatkar. "Intersection Sight Distance Characteristics of Turbo Roundabouts." Designs 5, no. 1 (2021): 16. http://dx.doi.org/10.3390/designs5010016.

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A turbo roundabout uses spiral circulatory roads for effectively counteracting the problems faced in modern multilane roundabouts. First developed in 1996, the turbo roundabout has an advantage over the conventional roundabout regarding capacity and safety. Turbo roundabouts are still in the developing phase in North America, but even in the European subcontinent where they exist in large numbers, reliable analytical studies on the critical parameters of roundabout visibility are lacking. Visibility (sight distance) helps to shape the geometry of the intersection and aids in safety. This paper

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Easa, Said M., and Zain A. Ali. "Three-Dimensional Stop-Control Intersection Sight Distance." Transportation Research Record: Journal of the Transportation Research Board 1961, no. 1 (2006): 94–103. http://dx.doi.org/10.1177/0361198106196100111.

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Sarran, Jana, and Sean Sarran. "Evaluation of the Intersection Sight Distance at Stop-Controlled Intersections in a Mixed Vehicle Environment." World Electric Vehicle Journal 16, no. 5 (2025): 245. https://doi.org/10.3390/wevj16050245.

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The introduction of autonomous vehicles (AVs) on roadways will result in a mixed vehicle environment consisting of these vehicles and manual vehicles (MVs). This vehicular environment will impact intersection sight distances (ISDs) due to differences in the driving behaviors of AVs and MVs. Currently, ISD design values for stop-controlled intersections are based on AASHTO’s guidelines, which account only for human driver behaviors. However, with AVs in the traffic stream, it is important to assess whether the existing MV-based ISDs are compliant when an AV is present at an intersecting roadway

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Himes, Scott, Richard J. Porter, and Kimberly Eccles. "Safety Evaluation of Geometric Design Criteria: Intersection Sight Distance at Unsignalized Intersections." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 39 (2018): 11–19. http://dx.doi.org/10.1177/0361198118783162.

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A Policy on Geometric Design of Highways and Streets, 6th Edition, (publisher: AASHTO), provides design criteria for minimum sight distances, including intersection sight distance (ISD). An understanding of the relationship between ISD and safety at stop-controlled intersections is needed, with potential applications of this knowledge to both performance-based design and substantive road safety management practices. To establish this relationship, crash, traffic, and geometric data were collected from 832 two-lane minor unsignalized intersection approaches in Ohio, and Washington. The data wer

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Khattak, Aemal J., Shauna Hallmark, and Reginald Souleyrette. "Application of Light Detection and Ranging Technology to Highway Safety." Transportation Research Record: Journal of the Transportation Research Board 1836, no. 1 (2003): 7–15. http://dx.doi.org/10.3141/1836-02.

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An application of light detection and ranging (LIDAR) technology to highway intersection safety is presented. LIDAR can be used to collect information about a surface by reflecting thousands of light beams per second off the surface and measuring the return time of the beams. The surface profile is collected as a digital signature that can be used in a variety of applications. Collection of information on the surface profile of the earth in the form of elevation data is one of several LIDAR applications that have been used for mapping and contouring. The focus of the described application is u

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Easa, Said M., Yang Ma, Shixu Liu, Yanqun Yang, and Shriniwas Arkatkar. "Reliability Analysis of Intersection Sight Distance at Roundabouts." Infrastructures 5, no. 8 (2020): 67. http://dx.doi.org/10.3390/infrastructures5080067.

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This paper presents a reliability-based method for the design of intersection sight distance (ISD) at traffic roundabouts using the linear and nonlinear deceleration profiles of the entry vehicles. The reliability method is based on the first-order second moment method which is simple and relatively accurate compared with advanced methods. The nonlinear deceleration profile includes a shape parameter that produces the linear profile as a special case. Deterministic and reliability-based formulas for the required ISD for an approaching vehicle are developed for the entry vehicle on the left and

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Easa, Said M., Essam Dabbour, and Muhammad Z. A. Ali. "Three-Dimensional Model for Stop-Control Intersection Sight Distance." Journal of Transportation Engineering 130, no. 2 (2004): 261–70. http://dx.doi.org/10.1061/(asce)0733-947x(2004)130:2(261).

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Jung, Jaehoon, Michael J. Olsen, David S. Hurwitz, Alireza G. Kashani, and Kamilah Buker. "3D virtual intersection sight distance analysis using lidar data." Transportation Research Part C: Emerging Technologies 86 (January 2018): 563–79. http://dx.doi.org/10.1016/j.trc.2017.12.004.

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Sianto, Paulus, Stephanus Ola Demon, and Don Gaspar Noesaku Da Costa. "Considering Speeding Behavior when Designing a Workable Road Pavement at Downgrade Un-signalized Intersection." JUTEKS : Jurnal Teknik Sipil 9, no. 2 (2024): 98. https://doi.org/10.32511/juteks.v9i1.1221.

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Result of field observation shown that the tendency of riders to exceed speed limit also occurred at downgrade road segments, whereas previous study had reported that even on a flat road only riders with braking ability of 6 m/s2 can be avoided from crash due to the presence of unexpected object suddenly appears at 20 m ahead when traveling at around 60 km/h. This might be triggered by lack of information about pavement, geometrical and traffic condition surrounding. The aim of this study is to identify the accident risk at downgrade road segments due to inappropriate speed choice and/or pavem

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Sarran, Sean, and Yasser Hassan. "Intersection Sight Distance in Mixed Automated and Conventional Vehicle Environments with Yield Control on Minor Roads." Smart Cities 8, no. 3 (2025): 73. https://doi.org/10.3390/smartcities8030073.

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Intersection sight distance (ISD) requirements, currently designed for driver-operated vehicles (DVs), will be affected once automated vehicles (AVs) enter the driving environment. This paper examines the ISD for intersections with a yield control on a minor road in a mixed DV-AV environment. Five potential conflict types with different ISD requirements are modeled as a minor-road vehicle proceeds to cross the intersection, turns right, or turns left. Furthermore, different models are developed for each conflict type depending on the vehicle types on the minor and major roads. These models, al

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Hassan, Yasser, Said M. Easa, and A. O. Abd El Halim. "Analytical Model for Sight Distance Analysis on Three-Dimensional Highway Alignments." Transportation Research Record: Journal of the Transportation Research Board 1523, no. 1 (1996): 1–10. http://dx.doi.org/10.1177/0361198196152300101.

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Existing sight distance models are applicable only to two-dimensional (2-D) separate horizontal and vertical alignments or simple elements of these separate alignments (vertical curve, horizontal curve). A new model is presented for determining the available sight distance on 3-D combined horizontal and vertical alignments. The model is based on the curved parametric elements that have been used in the finite element method. The elements presented are rectangular (4-node, 6-node, and 8-node elements) and triangular. These elements are used to represent various features of the highway surface a

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Tawfeek, Mostafa H., and Karim El-Basyouny. "Location-based analysis of car-following behavior during braking using naturalistic driving data." Canadian Journal of Civil Engineering 47, no. 5 (2020): 498–505. http://dx.doi.org/10.1139/cjce-2019-0314.

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This study investigates the car-following behavior during braking at intersections and segments. Car-following events were extracted from a naturalistic driving dataset, mapped using ArcGIS, and analyzed to differentiate between the intersection- and segment-related events. The intersection-related events were identified according to an intersection influence area, which was estimated based on the stopping sight distance and the speed limit. Five behavioral measures were quantified based on exploring the probability density functions (PDF) for intersection- and segment-related events. The resu

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Yuan, Li, and Jian Lu. "Safety Evaluation and Improvements for Highway Intersections." Transportation Research Record: Journal of the Transportation Research Board 2060, no. 1 (2008): 46–52. http://dx.doi.org/10.3141/2060-06.

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Intersection safety is one of the most important issues in transportation. Traffic crash analysis—the most popular method to evaluate or assess the safety performance of an intersection—has been used for a long time. However, it is based on a lot of crash data, which need to be accumulated over a long period. In addition, traffic crashes sometimes occur randomly as a result of human driving behavior. Therefore, without sufficient data and crash history, traffic crash analysis may not give an overall evaluation of an intersection's safety performance. This paper introduces an approach to evalua

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Pein, Wayne. "Bicyclist Performance on a Multiuse Trail." Transportation Research Record: Journal of the Transportation Research Board 1578, no. 1 (1997): 127–31. http://dx.doi.org/10.3141/1578-16.

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Bicyclist crossing time from a full stop was measured using video recording equipment at 16 diverse trail-roadway intersections (two to six lanes, stop or signal controlled, divided or undivided) of the Pinellas Trail in Pinellas County, Florida. A total of 442 bicyclists (single individuals or randomly selected individuals from a group) were timed. The cruising speed of 65 bicyclists was also determined. A linear regression model was fit to the time and crossing-distance data. A linear regression was also fit to eight 85th percentile crossing-time points that were calculated from grouped raw

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Muppa, Karunakar Reddy, C. Naveen kumar, and Teja Tallam. "Vehicle Pedestrian Interaction Analysis at Unsignalized Intersection using Trajectory Data." IOP Conference Series: Earth and Environmental Science 982, no. 1 (2022): 012057. http://dx.doi.org/10.1088/1755-1315/982/1/012057.

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Abstract As the pedestrian’s rapid progress, pedestrian safety has recently assumed greater importance in the research population activities. To assess road user interactions at an unsignalized junctions with heterogeneous traffic complexity, innovative trajectory-based data was used and to make urban intersections safer for road users, the proposed severity levels will be used to test and evaluate numerous infrastructures and control upgrades. Study authors suggests an advanced pattern-based technique to characterize pedestrian-vehicle interactions based on road user behaviors. Surrogate safe

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Gattis, J. L., and Sonny T. Low. "Intersection Angle Geometry and the Driver’s Field of View." Transportation Research Record: Journal of the Transportation Research Board 1612, no. 1 (1998): 10–16. http://dx.doi.org/10.3141/1612-02.

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At a skewed-angle intersection with the acute angle to the right of a driver on the minor roadway (the approach required to stop or yield), the vehicle body may obstruct the minor-road driver’s line of sight. Body parts that may obstruct the line of sight include the door frame, a panel aft of the door, or the cargo box of a single-unit truck. If the combination of vehicle design and intersection skew angle restrict a driver’s line of sight to the right, safety may be compromised. This research project evaluated obstructions caused by the bodies of a number of vehicles. The researchers measure

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Yan, Xuedong, and Essam Radwan. "Geometric Models to Calculate Intersection Sight Distance for Unprotected Left-Turn Traffic." Transportation Research Record: Journal of the Transportation Research Board 1881, no. 1 (2004): 46–53. http://dx.doi.org/10.3141/1881-06.

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Ali, M. Z. A., Said M. Easa, and M. Hamed. "Stop-Controlled Intersection Sight Distance: Minor Road on Tangent of Horizontal Curve." Journal of Transportation Engineering 135, no. 9 (2009): 650–57. http://dx.doi.org/10.1061/(asce)0733-947x(2009)135:9(650).

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Easa, Said M. "Design Guidelines for Symmetrical Single-Lane Roundabouts Based on Intersection Sight Distance." Journal of Transportation Engineering, Part A: Systems 143, no. 10 (2017): 04017052. http://dx.doi.org/10.1061/jtepbs.0000081.

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Fitzpatrick, Kay, Torsten Lienau, and Daniel B. Fambro. "Driver Eye and Vehicle Heights for Use in Geometric Design." Transportation Research Record: Journal of the Transportation Research Board 1612, no. 1 (1998): 1–9. http://dx.doi.org/10.3141/1612-01.

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Driver eye, headlight, taillight, and vehicle heights are important elements for determining passing and intersection sight distances and horizontal and vertical curve lengths to provide required stopping sight distance. Driver eye and object heights have varied significantly since their inception in the 1920s, when their values were suggested as 1676 mm. The objective of this study was to determine appropriate driver eye, headlight, taillight, and vehicle heights for use in developing geometric design criteria. The results of this research were used to recommend a driver eye height of 1080 mm

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Koike, Hirotaka, Akinori Morimoto, and Atsushi Kitazawa. "Unevenness of Intersection Pavement and Bicycle Safety." Transportation Research Record: Journal of the Transportation Research Board 1846, no. 1 (2003): 56–61. http://dx.doi.org/10.3141/1846-10.

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Bicycles are environmentally friendly and easy to operate. However, the bicycling environment in Japan is inadequate compared with many developed countries. Bicycle accidents have been increasing in recent years, and safety measures are needed to improve the bicycling environment. Although road surface conditions have improved, as reflected in the recent barrier-free policy for elderly and disabled pedestrians, an uneven surface between the road and the crosswalk can help to reduce accidents by reducing running speed. Because the most frequent type of bicycle accident is a collision with a car

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Olukanni, David, David Enetomhe, Gideon Bamigboye, and Daniel Bassey. "A Time-Based Assessment of Particulate Matter (PM2.5) Levels at a Highly Trafficked Intersection: Case Study of Sango-Ota, Nigeria." Atmosphere 12, no. 5 (2021): 532. http://dx.doi.org/10.3390/atmos12050532.

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Vehicle emissions have become one of the most prevailing air contamination sources, including nitrogen oxides, volatile organic compounds, carbon monoxide and particulate matter (PM). Among other air pollutants, PM limits visible sight distance and poses health risks upon inhalation into the human body. This study focused on assessing PM2.5 concentrations in air at different periods of the day at the highly trafficked grade-separated intersection of Sango-Ota, Ogun State, Nigeria. PM2.5 readings were taken at three at-grade points around the intersection’s roundabout between 10:00 a.m. and 5:0

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Budiharjo, Anton, Pipit Rusmandani, Keke Inggriani, and Mohammad Archi Maulyda. "The Impact of Junction Metering for Improving Intersection Performance using Vissim Software." MEDIA KOMUNIKASI TEKNIK SIPIL 27, no. 2 (2021): 187–94. http://dx.doi.org/10.14710/mkts.v27i2.29834.

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Sight distance that’s not suitable with the standard, the queue time and the low awareness of vehicle users to give priority to other road users is the reasons for the hampered of traffic movements and reducing the use of intersections. The majority of vehicles for or on minor road use the opponent’s lane because there are no markers, this causes conflict crossing and merging. The researchers conducted study of Junction Metering which consisted of control and sensor settings to improve safety for road users. The method that used for analysis of intersection performance using calculation by sof

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Wang, Jin, and Huaguo Zhou. "Using Naturalistic Driving Study Data to Evaluate the Effects of Intersection Balance on Driver Behavior at Partial Cloverleaf Interchange Terminals." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 38 (2018): 255–65. http://dx.doi.org/10.1177/0361198118774670.

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Past studies showed that poor intersection balances at partial cloverleaf (parclo) interchange terminals significantly impact traffic safety and sight distance of drivers making left turns to entrance ramps. Some state traffic agencies have recommended a “balance” guideline that the length between the left-turn stop line on crossroads to the middle of the intersection should not be greater than 60% of the entire length of the intersection. However, a scarcity of research exists on how the balance of an intersection affects driver behavior, which has been identified as a critical contributing f

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Che Abdullah, Sukarnur, Masahiro Ohka, and Mohamad Dzulhelmy Amari. "Stereo Vision for Visual Object Tracking and Distance Measurement Assessment." Journal of Mechanical Engineering 16, no. 1 (2019): 121–34. http://dx.doi.org/10.24191/jmeche.v16i1.6043.

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The computer vision for binocular eyes system has many applications in robot applications and safety purposes. Based on the previous research, the combination of the area of sight of stereo vision will trigger the trigonometry intersection point for determine the distance of the objects from it baseline. The system programme codes is one of the issue need to confront consequent since there are various sorts of calculation that are in the same field, however has unmistakable of use. This project focuses on how to measure distances using binocular vision. The main objective is to evaluate the bi

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FUJIWARA, Akimasa, Yoriyasu SUGIE, Toshiyuki OKAMURA, and Moto EGUSA. "Relationship between Traffic Accident and Sight Distance to Signal at Intersection close to Bridge with Downhill." INFRASTRUCTURE PLANNING REVIEW 18 (2001): 803–8. http://dx.doi.org/10.2208/journalip.18.803.

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Tarawneh, Mohammed S., and Patrick T. Mccoy. "Effect of Offset between Opposing Left-Turn Lanes on Driver Performance." Transportation Research Record: Journal of the Transportation Research Board 1523, no. 1 (1996): 61–72. http://dx.doi.org/10.1177/0361198196152300108.

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The objective of the research described here was to study the effects of the offset between opposing left-turn lanes on the turning performance of drivers with respect to driver age and gender. Left-turn performance of 100 subjects within three age groups (25–45, 65–74, and 75+ years old) was evaluated under normal driving conditions at four intersections of different left-turn offset configurations. The results indicate that driver performance can be adversely affected by offsets that are much less (i.e., more negative) than the negative 0.9-m offset. Such large negative offsets significantly

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Luo, Rui, Hualing Zhao, Ping Deng, and Yin Kuang. "LOS Signal Identification Based on Common Chord Intersection Point Position Deviation from MS in Target Localization." Applied Sciences 13, no. 4 (2023): 2566. http://dx.doi.org/10.3390/app13042566.

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Target localization has been a popular research topic in recent years since it is the basis of all kinds of location-based applications. For GNSS-denied urban or indoor environments, the localization method based on time-of-arrival (TOA) is one of the most popular localization methods due to its high accuracy and simplicity. However, the Non-line-of-sight (NLOS) error is the major cause that degrades the accuracy of the TOA-based localization method. Identifying whether a received signal at a base station (BS) is due to a line-of-sight (LOS) transmission or NLOS is the key to TOA-based localiz

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Kindler, Carrie, Richard M. Wood, Douglas W. Harwood, Timothy R. Neuman, Ingrid B. Potts, and Nicholas Antonucci. "Intersection Diagnostic Review Module: Expert System for Geometric Design Review of Intersections on Rural Two-Lane Highways." Transportation Research Record: Journal of the Transportation Research Board 1851, no. 1 (2003): 3–12. http://dx.doi.org/10.3141/1851-01.

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FHWA has sponsored the development of an expert system for diagnostic review of at-grade intersections on rural two-lane highways as a component of the Interactive Highway Safety Design Model (IHSDM). This system, the Intersection Diagnostic Review Module (IDRM), has been developed because conventional design practices and design review procedures often fail to explicitly address the safety consequences of geometric design decisions. In particular, combinations of geometric features may pose safety problems that current design policies do not address (e.g., an intersection in combination with

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Osama, Ahmed, Tarek Sayed, and Said Easa. "Framework for evaluating risk of limited sight distance for permitted left-turn movements: case study." Canadian Journal of Civil Engineering 43, no. 4 (2016): 369–77. http://dx.doi.org/10.1139/cjce-2015-0498.

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A reliability analysis framework is used to evaluate the risk of limited sight distance for permitted left-turn movements due to the presence of opposing left-turn vehicles. Two signalized intersection approaches in the city of Surrey were used as case studies for the framework. Geometric and traffic video data was collected and analyzed using a computer vision tool to extract the input variables probability distributions. The data was used in the reliability analysis where first-order and Importance Sampling methods were performed. The analysis showed that the probability of non-compliance wa

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González-Gómez, Keila, Derrick K. Rollins, and María Castro. "Modeling Urban Road Scenarios to Evaluate Intersection Visibility." Sustainability 14, no. 1 (2021): 354. http://dx.doi.org/10.3390/su14010354.

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Road safety is key to sustainable mobility. Rapid technological advances have allowed several road safety-related analyses, previously performed in situ, to be conducted virtually. These virtual analyses benefit understanding of how roads operate and how users perceive them. Additionally, they facilitate the assessment of several parameters that are fundamental to road design and operation. The available sight distance (ASD) is one of these parameters that, if not provided adequately, could alter the proper functioning of roads. This study presents a framework to assess the impact of certain f

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Wu, Lina, Jiangwei Chu, Yusheng Ci, Shumin Feng, and Xingwang Liu. "Engineering Solutions to Enhance Traffic Safety Performance on Two-Lane Highways." Mathematical Problems in Engineering 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/762379.

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Improving two-lane highway traffic safety conditions is of practical importance to the traffic system, which has attracted significant research attention within the last decade. Many cost-effective and proactive solutions such as low-cost treatments and roadway safety monitoring programs have been developed to enhance traffic safety performance under prevailing conditions. This study presents research perspectives achieved from the Highway Safety Enhancement Project (HSEP) that assessed safety performance on two-lane highways in Beijing, China. Potential causal factors are identified based on

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KIM, Dong Hyeop, Sarang JOKHIO, and Jin-Tae KIM. "Study on Operational Efficiency of Intersection with Safety Warning Information Overcoming Disqualified Drivers’ Sight Distance in Port Area." Journal of Korean Society of Transportation 38, no. 5 (2020): 404–13. http://dx.doi.org/10.7470/jkst.2020.38.5.404.

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Naylor, David W., and Johnny R. Graham. "Intersection Design and Decision–Reaction Time for Older Drivers." Transportation Research Record: Journal of the Transportation Research Board 1573, no. 1 (1997): 68–71. http://dx.doi.org/10.3141/1573-11.

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Trends in automobile and roadway use have changed drastically over the past several years. Changes in the trends include an increase in the percentage of licensed drivers, annual miles driven, and an increase in the number of older drivers. Of particular concern is the increase in the number of older drivers and the question of whether the current design standards adequately meet the needs of the older driver. In this study, the perception-reaction time variable used in calculating intersection sight distance at stop sign-controlled intersections was evaluated. The current design value for the

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Dabbour, Essam. "Design Gap Acceptance for Right-Turning Vehicles Based on Vehicle Acceleration Capabilities." Transportation Research Record: Journal of the Transportation Research Board 2521, no. 1 (2015): 12–21. http://dx.doi.org/10.3141/2521-02.

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The current geometric design guide provides a methodology to analyze intersection sight distance for right-turning vehicles at signalized and two-way stop-controlled intersections based on the gaps accepted by the majority of drivers as measured from the field. That methodology is based mainly on driver behavior without considering the actual capabilities of the turning vehicle when accelerating from rest to the speed of the cross-traffic stream. This paper introduced the new design gap concept, which was based on the actual distance and time needed for the turning vehicle to accelerate to the

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Lerner, Neil. "Age and Driver Time Requirements at Intersections." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 38, no. 14 (1994): 842–46. http://dx.doi.org/10.1177/154193129403801410.

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Current highway design models for required sight distance at stop-sign controlled intersections assume that the perception-reaction time (PRT) required is 2.0 seconds. That is, a 2.0 second interval to perceive, evaluate, decide, and initiate a response, is adequate to cover the range of time it takes real drivers to do this. This experiment evaluated the adequacy of the 2.0 second PRT assumption, including specific consideration of older drivers, who are known to experience relatively greater difficulty at intersections. Subjects in three age groups (20–40; 65–69; and 70+ years old) drove the

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N., Shonwa M., and Matawal D. S. "Traffic Characteristics of Abubakar Tafawa Balewa University (ATBU) Bauchi Yelwa Campus Gate and Design of Effective Mitigation Measures." YASIN 5, no. 3 (2025): 1654–66. https://doi.org/10.58578/yasin.v5i3.5377.

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Traffic Characteristics Research is vital for designing the required geometric features in the roadway. It includes volume of traffic, speed of traffic, and percentage of trucks or larger vehicles like bus to and fro. Traffic characteristics are broadly classified under two types viz: Road user characteristics and Vehicular characteristics. In this paper, we have studied and assess the traffic condition (volume) at Abubakar Tafawa Balewa University (A.T.B.U), Yelwa campus Gate Bauchi. The volume data was collected using manual volume count. The Traffic Volume assessment data shows that at dail

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Hochmuth, Jonathan, and Ron Van Houten. "Influence of Advanced Placement of the In-Street Sign Gateway on Distance of Yielding from the Crosswalk." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 35 (2018): 13–20. http://dx.doi.org/10.1177/0361198118776480.

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A multiple-threat accident occurs when a pedestrian attempts to traverse a crosswalk on a multilane road, and the vehicle nearest to the pedestrian yields close to the crosswalk, obscuring the pedestrian’s view of the next lane, and the motorist’s view in the adjacent lane of the pedestrian. This set of circumstances may lead to pedestrians being struck at higher speeds by a vehicle in the adjacent oncoming lane, often resulting in serious injury or a fatality. The present study compared advanced placement of a gateway in-street sign configuration with a gateway deployed at the crosswalk, on t

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Byrd, Patrick S., Patrick T. McCoy, Geza Pesti, and Virendra A. Singh. "Implementation of Wider Lane Lines to Improve Sight Distance from Opposing Left-Turn Lanes." Transportation Research Record: Journal of the Transportation Research Board 1708, no. 1 (2000): 12–19. http://dx.doi.org/10.3141/1708-02.

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Vehicles turning left at intersections from opposing left-turn lanes often restrict each other’s sight distance. Previous research has developed guidelines for offsetting opposing left-turn lanes to provide adequate sight distances. Implementation of these guidelines at existing intersections typically involves reconstructing the left-turn lanes. However, the results of the before-and-after studies presented demonstrate that increasing the width of the lane lines between left-turn lanes and the adjacent through lanes also can be used as a means of improving the sight distance between opposing

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Magyari, Zsófia, Csaba Koren, Mariusz Kieć, and Attila Borsos. "Sight distances at unsignalized intersections: a comparison of guidelines and requirements for human drivers and autonomous vehicles." Archives of Transport 59, no. 3 (2021): 7–19. http://dx.doi.org/10.5604/01.3001.0014.9553.

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Many traffic accidents are caused by unforeseen and unexpected events in a site that was hidden from the driver's eyes. Road design parameters determining required visibility are based on relationships formulated decades ago. It is worth reviewing them from time to time in the light of technological developments. In this paper, sight distances for stopping and crossing situations are studied in relation to the assumed visual abilities of autonomous vehicles. Current sight distance requirements at unsignalized intersections are based among others on speeds on the major road and on ac-cepted gap

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