This paper presents the application of a simulated annealing algorithm as an optimization method for finding a suitable combination of VISSIM parameter values. Four weaving sections are simulated in VISSIM platform using field data coming from Traffic Information Collecting System (TICS) in Shanghai. Numerous simulation tests indicate the main parameters affecting simulation precision are Desired Lane-Change Distance (DLCD), Witting Time Before Diffusion (WTBD), and Wiedemann99 car-following parameters CC0 (the average desired distance between stopped cars), CC1 (the headway time (in/s) that a driver wants to keep at a certain speed), CC2 (safety distance a driver allows before he intentionally moves closer to the car in front). The prepositional parameter combination of DLCD, WTBD, CC0, CC1 and CC2 is 300, 90, 1.5, 0.8 and 3.50 for peak time and 200, 45, 1.5, 1.0 and 5.0 for midday off-peak traffic.
Calibration of VISSIM for Shanghai Expressway Weaving Sections Using Simulated Annealing Algorithm
International Conference on Computing in Civil Engineering 2005 ; 2005 ; Cancun, Mexico
2005-06-24
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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