Results 171 to 180 of about 1,168 (207)

Delay at Unsignalized Intersections

Transportation Research Record: Journal of the Transportation Research Board, 2008
The estimation of average delay for vehicles at an intersection by analytic methods is based on queuing theory. Because of the variability of traffic demand over time, the estimation of delays for time-dependent flow and capacity—also with a temporary overload—is of primary interest.
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Delays of Shared-Short Lanes at Unsignalized Intersections

Transportation Research Record: Journal of the Transportation Research Board, 2019
At unsignalized intersections, both on the major street and on the minor street, there may be short turning lanes alongside the through lanes following downstream from one single lane. This combined system is termed a shared-short lane (SSL). Up to now it has only been possible to calculate the capacity of these lanes at the stop line and the capacity ...
Wu, Ning, Brilon, Werner
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Control of autonomous vehicles at an unsignalized intersection

2017 American Control Conference (ACC), 2017
Safety and optimal traffic flow are important priorities in intelligent transportation systems. This paper presents a collaborative method for collision avoidance between autonomous vehicles at an unsignalized intersection. The collision conditions are expressed in terms of the vehicles' speed ratios.
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The New German Guideline for Capacity of Unsignalized Intersections

1991
This paper describes the background of a new German guideline for the estimation of the ‘capacity at unsignalized intersections. It contains information on fundamental aspects of the theory as well as a description of the proposed procedure which results from several research projects carried out on behalf of the West German Federal Minister of ...
Werner Brilon, Michael Großmann
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Limited priority merge at unsignalized intersections

Transportation Research Part A: Policy and Practice, 1999
Abstract The development of a new gap acceptance model based on limited priority for the major stream is discussed. Field observations were carried out to identify the mechanism of the merging process taking place at unsignalized intersections under congested conditions.
Rod J. Troutbeck, Soichiro Kako
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Motorist Yielding to Pedestrians at Unsignalized Intersections

Transportation Research Record: Journal of the Transportation Research Board, 2006
This paper evaluates engineering treatments that can be used to improve the safety of pedestrians crossing in marked crosswalks on busy arterial streets. The research team collected extensive data at 42 study sites in different regions of the country to gauge the effectiveness (as measured by motorist yielding or stopping) of various engineering ...
Shawn Turner, Kay Fitzpatrick, Marcus Brewer, Eun Sug Park   +3 more
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The Design of Unsignalized Intersections in the UK

1988
The 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, 2019
Safety 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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Conflicts and Delay Studies at Unsignalized Intersections

1988
This 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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Swedish Research on Unsignalized Intersections

1988
The 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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