Results 181 to 190 of about 292,949 (215)
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The Design of Unsignalized Intersections in the UK
1988The cost of traffic delays and accidents at road junctions in the UK is estimated at some £6,000M or so per year, and more than 50% of it comes from unsignalised junctions. Design practices, which bear directly upon the efficiency, and therefore the user cost, of junctions have been subject to much scrutiny over the past decade, and the methods now ...
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Collaboration and Optimal Conflict Resolution at an Unsignalized Intersection
IEEE Transactions on Intelligent Transportation Systems, 2019Safety and efficiency are important priorities in transportation engineering. The new research directions in intelligent transportation systems focus on autonomy and collaboration to improve safety and efficiency. In this paper, we consider the problem of conflict resolution at an unsignalized intersection.
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Swedish Research on Unsignalized Intersections
1988The methods used by the Swedish National Road Administration to calculate capacity, delay, queue length etc in unsignalized intersections are based on a queuing theory model and on earlу german methods. These methods are used in the CAPCAL computer program, which was completed in 1977.
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Delay Time Model at Unsignalized Intersections
Journal of Transportation Engineering, 2014AbstractA simulation process is presented for providing a point estimate of average traffic delay on minor roads at urban unsignalized intersections during peak hours. A performing process of microsimulation was carried out, and a good level of conformity was obtained between the traffic simulated in the peak hours and the corresponding amount of ...
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Conflicts and Delay Studies at Unsignalized Intersections
1988This paper describes simulation models for unsignalized intersections and signalized intersections. The number of conflicts and vehicle delays have been used to evaluate the level of service of unsignalized intersections, where the number of conflicts is used to evaluate the safety effects and delay is used in cost benefit analysis.
Xiao Yan Zhang, Shu Sheng Zhang
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CELLULAR AUTOMATA MODEL FOR UNSIGNALIZED T-SHAPED INTERSECTION
International Journal of Modern Physics C, 2009In this paper, the unsignalized T-shaped intersection is modeled by a cellular automata model. The main street and the minor street join at the intersection. As to the traffic flow is not controlled by traffic lights, conflict happens between the vehicles from minor street and that from main street.
Li, Xin-Gang +3 more
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Estimating the Safety Effects of Intersection Sight Distance at Unsignalized Intersections
Transportation Research Record: Journal of the Transportation Research Board, 2016A gap acceptance crash is one of the most common types of multivehicle crashes at unsignalized intersections. Drivers’ gap acceptance is influenced by the intersection sight distance (ISD). Before this research, the relationship between ISD and safety (measured by crash frequency) at unsignalized intersections was not quantified.
Scott Himes +4 more
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On the Awareness of Connected Vehicles at Unsignalized Intersections
2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring), 2022Sergei S. Avedisov +3 more
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Augmented Reality Experiment: Drivers' Behavior at an Unsignalized Intersection
IEEE Transactions on Intelligent Transportation Systems, 2013Applying new technologies to traffic engineering studies has become more urgent due to the high cost and risk associated with ordinary in-the-field testing. Augmented reality (AR) is one of those technologies, in which virtual (computer-generated) objects are added to the real scene in a way that the user cannot distinguish between real and virtual ...
Khaled F. Hussain +2 more
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Landscaping of highway medians and roadway safety at unsignalized intersections
Accident Analysis & Prevention, 2016Well-planted and maintained landscaping can help reduce driving stress, provide better visual quality, and decrease over speeding, thus improving roadway safety. Florida Department of Transportation (FDOT) Standard Index (SI-546) is one of the more demanding standards in the U.S.
Chen, Hongyun +2 more
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