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Book synopsis

Transportation planning models, which estimate §traffic volumes on transportation network links, are §often unable to realistically consider travel time §delays at intersections. Introducing signal §controls in models often result in significant and §unstable changes in network attributes including the§monotonicity of link travel time, which, in §turn, leads to inability of planning models to arrive§at a network solution based on travel costs that are§consistent with the intersection delays due to signal§controls. Simultaneous optimization of traffic§routing and signal controls has not been accomplished§in real-world applications of traffic assignment. A§delay§model dealing with five major types of intersections §has been developed using artificial neural networks §(ANN). The delay estimates by the ANN delay model §have satisfactory percentage root-mean-squared §errors (%RMSE). A combined system has also been §developed that includes the ANN delay model and a §user-equilibrium (UE) traffic assignment. The §combined system employs the Frank-Wolfe method to §achieve a convergent solution, although the global §optimum may not be guaranteed.

Book details

• Full title: A COMBINED SYSTEM OF STATIC TRAFFIC ASSIGNMENT AND ANN DELAY MODEL
• Subtitle: SOLVING THE CONVERGENCE OF ITERATIVE OPTIMIZATION OF NON-MONOTONIC TRAFFIC ASSIGNMENT
• Author: Zhen Ding
• Language: English
• Binding: Paperback
• Number of pages: 124
• EAN: 9783639121216
• ID: 06820932
• Publisher: VDM Verlag Dr. Müller
• Dimensions: 220 × 150 × 7 mm
• Published: 2009

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