Journal ArticleDOI
Analytical Methods in Transportation: Left-Turn Penalties in Traffic Assignment Models
TLDR
The simplex computational technique and an equivalent geometric algorithm are presented side-by-side in the solution of a sample problem so that the relationship of the two methods can be seen.Abstract:
An examination of the use of linear programming is presented for the assignment of traffic to routes in a network when the origins and destinations of the trips are known. The formulation of the traffic assignment problem as a linear programming problem is given. The simplex computational technique and an equivalent geometric algorithm are presented side-by-side in the solution of a sample problem so that the relationship of the two methods can be seen. Also mentioned is an intersection mode that permits time penalties to be assigned to individual turning maneuvers within the intersection. Essentially the intersection node is broken into several sub-nodes so that, for visualization purposes, a spacial separation can be substituted for the temporal one. Adaptations of the model for several types of intersections are presented. The intersection model can be applied equally well to the linear programming approach to assignment or to presently used techniques.read more
Citations
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Journal ArticleDOI
The minimum route problem for networks with turn penalties and prohibitions
Ronald F. Kirby,Renfrey B. Potts +1 more
Journal ArticleDOI
Adaptive routing considering delays due to signal operations
Baiyu Yang,Elise Miller-Hooks +1 more
TL;DR: This work addresses the problem of determining optimal routing decisions in signalized traffic networks, where arc travel times vary over time and are known only probabilistically and additional delay due to signal operations is explicitly considered.
Journal ArticleDOI
On the generalized directed rural postman problem
TL;DR: It is described how many types of practically relevant single-vehicle routing problems can be modelled as GDRPPs and its importance as a unified model for postman problems is demonstrated.
Journal ArticleDOI
Approach to Time Dependence and Reliability in Dynamic Route Guidance
TL;DR: The procedure, based on the A* path-finding algorithm and Chen's link penalty method, involves penalizing links with a high risk of being congested and obtaining a set of reliable route suggestions.
Journal ArticleDOI
ICNavS: a tool for reliable dynamic route guidance
TL;DR: A new purpose-developed software tool, the Imperial College Navigation Software (ICNavS), is presented, so as to implement and demonstrate the new reliable dynamic route guidance approach by integrating the A* algorithm, the concept of reliability and an existing route guidance method into a single package.
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