Analysis of interrupted traffic flow by finite difference methods

Panos G. Michalopoulos, Dimitrios E. Beskos and Jaw-Kuan Lin

Transportation Research Part B: Methodological, 1984, vol. 18, issue 4-5, 409-421

Abstract: Three numerical techniques for macroscopic analysis of traffic dynamics at signalized links (isolated or coordinated) are presented. The techniques are based on finite differences in time and space and assist in implementing continuum models at real situations. The general methodology presented allows treatment of any arrival and departure pattern, inclusion of sinks or sources, employment of any desired equilibrium flow-density relationship and arbitrary specified initial conditions. Implementation of the proposed method to a signalized intersection and a coordinated link suggests satisfactory agreement with field data and notable agreement with analytical results, respectively. Comparisons made under progressively realistic assumptions demonstrate substantial improvements in model performance as the complexity of the assumptions increases

Date: 1984
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