Traffic safety simulation is a preferable way to evaluate safety through computing conflict indices between every two vehicles during their running process. Compared to operational efficiency simulation, lots of parameters need to be calibrated, and high precision is required and a little change of parameters may result in great difference. Moreover, commonly used calibrations based on intelligent algorithms prefer result precision to behavioral parameters, and may not reflect real traffic conditions for stochastic heuristic algorithm. Thus, a two stage calibration methodology based on experimental optimization is put forward. To depict its effectiveness, 6 group data of 3 intersections are surveyed and imposed for calibration and validation through above method by linking Surrogate Safety Analysis Model (SSAM) using vehicle trajectories exported from VISSIM. The result is quite promising that the errors of conflict number, conflict velocity and delay are 7%∼13%, –7%∼5%, –11%∼–-6% respectively with a decreasing of 39%∼43%,–6%∼ –2%,–17%∼–10%, which objectively demonstrates feasibility and validity of the method.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Calibration and Validation Procedure for Intersection Safety Simulation using SSAM and VISSIM


    Contributors:
    Zhou, Si'en (author) / Li, Keping (author) / Sun, Jian (author) / Han, Pingchao (author)

    Conference:

    Tenth International Conference of Chinese Transportation Professionals (ICCTP) ; 2010 ; Beijing, China


    Published in:

    ICCTP 2010 ; 603-615


    Publication date :

    2010-07-22




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Calibration and Validation Procedure for Intersection Safety Simulation using SSAM and VISSIM

    Zhou, S. / Li, K. / Sun, J. et al. | British Library Conference Proceedings | 2010


    Optimization of signalized intersection based on VISSIM-SSAM simulation

    Yang, Jie / Guo, Tangyi / Chen, Yaxin | SPIE | 2022


    Optimization of signalized intersection based on VISSIM-SSAM simulation

    Yang, Jie / Guo, Tangyi / Chen, Yaxin | British Library Conference Proceedings | 2022



    Queue Spillback Intersection Prevention and Simulation Based on Vissim

    Chen, Ruixin / Wu, Xianyu / Xiao, Zhongsheng | ASCE | 2019