Traffic safety is of great significance, especially at urban expressway where traffic volume is large and traffic conflicts are highlighted. But little research up to date has discussed in detail how these factors impact the TTC characteristics. In this paper, field Beijing expressway data were collected by video with different locations, lanes, traffic conditions and following vehicle types. Accordingly, some basic descriptive statistics of total TTC samples were shown and analyzed. We then used T-test to analyze the effect of road environments, traffic conditions, and vehicle types on TTC statistically. The results implied three main findings. Firstly, TTC was found to change according to road environments (i.e. TTC on weaving segment is smaller than other locations), secondly, some evidence supported this hypothesis that traffic conditions (especially uncongested traffic condition) affect TTC significantly, and lastly, little correlation was found between TTC means and vehicle types.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Empirical Analysis on Time to Collision at Urban Expressway



    Published in:

    Applied Mechanics and Materials ; 505-506 ; 1127-1132


    Publication date :

    2014-01-16


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Empirical Analysis on Time to Collision at Urban Expressway

    Xu, C. / Qu, Z.W. | British Library Conference Proceedings | 2014


    Empirical Analysis on Time to Collision at Urban Expressway

    Xu, Cheng / Qu, Zhao-Wei | Tema Archive | 2014



    Expressway anti-collision guardrail mounting equipment

    LI WEI / YANG HUI / WEI JUN et al. | European Patent Office | 2023

    Free access

    Urban Expressway Functional Reliability

    Yan, Ya-dan / Ning, Zuo-qiang / Li, Hui et al. | ASCE | 2016