Journal ArticleDOI
The Analysis and Interpretation of Gap Acceptance Data
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TLDR
In this article, alternative methods of analysing gap acceptance data are considered with a view to removing the bias implicit in the situation in which minor road vehicle drivers exhibit consistent behavior and all accepted and rejected gaps are taken into account.Abstract:
Alternative methods of analysing gap acceptance data are considered with a view to removing the bias implicit in the situation in which minor road vehicle drivers exhibit consistent behavior and all accepted and rejected gaps are taken into account. Simulation techniques are used to show that some of these suggested methods are invalid, but verification is obtained for a method derived by the author in an earlier paper that simply requires the displacement of the gap acceptance curve time scale by an amount equal to the product of the variance of the observed gap acceptance distribution (sec2) and the major road volume (veh/sec). This, it is contended, is easier to apply than an alternative method of estimating the critical gap distribution parameters given by McNeil and Morgan. A theoretical relation is determined between the mean of the critical gap distribution and the Raff critical lag that shows the two to be equal only when the gap acceptance curve takes the form of a step function.read more
Citations
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Useful estimation procedures for critical gaps
TL;DR: In this paper, the authors give an overview of some of the more important methods for the estimation of crtical gaps at unsignalized intersections, including the maximum likelihood procedure and the method developed by Hewitt.
Journal ArticleDOI
Useful estimation procedures for critical gaps
TL;DR: An overview of some of the more important methods for the estimation of crtical gaps at unsignalized intersections is given and the maximum likelihood procedure and the method developed by Hewitt can be recommended for practical application.
Journal ArticleDOI
Estimation of gap acceptance parameters within and across the population from direct roadside observation
TL;DR: In this paper, the authors explored the feasibility of using maximum likelihood as an approach to determine the parameters of gap acceptance functions when these functions vary from individual to individual from direct roadside observations.
Journal ArticleDOI
Factors influencing the probability of an incident at a junction: results from an interactive driving simulator.
TL;DR: Using data generated from a fixed-base interactive driving simulator, a model is built to predict the probability of an incident occurring as a result of a right-turn across left-hand traffic at an unsignalised junction.
Journal ArticleDOI
Gap acceptance at atypical stop-controlled intersections
J L Gattis,Sonny T. Low +1 more
TL;DR: In this paper, a gap acceptance study was performed at a T-intersection at which left-turn traffic on the through leg had the right-of-way, and a number of methods were used to model the critical gap size at this atypical intersection.
References
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Journal ArticleDOI
A theoretical analysis of delays at an uncontrolled intersection
TL;DR: The problem is similar to those of queueing with priority customers, of the 'service repeat' variety, but there is one important difference: at road junctions of the type considered there is a considerable loss of service time when changing from one type of ' customer' to the other.
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Traffic performance at urban street intersections
TL;DR: In this article, the authors conducted a preliminary exploratory study into the relation-space relations between vehicles and traffic flow and concluded that a very small percentage of the vehicles start early.
Journal ArticleDOI
Some Problems in Traffic Delay
George H. Weiss,A. A. Maradudin +1 more
TL;DR: The systematic application of renewal theory techniques offers a method of solving problems of the delay to a single car waiting at a stop sign, which is much simpler than the combinatorial solutions published by Tanner and Mayne in the treatment of somewhat simpler versions.
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A note on the selection of gap acceptance criteria for traffic simulation studies
Journal ArticleDOI
Delays to road traffic at an intersection
G. F. Yeo,B. Weesakul +1 more
TL;DR: In this paper, a model for road traffic delays at intersections is considered where vehicles arriving in bunches in a Poisson process in a one way minor road yield right of way to traffic, which forms alternate bunches and gaps, in a major road.