Trajectory data is essential for understanding the driver-vehicle-road interaction which is crucial for safety and operational assessment. The video image-processing technique is useful to collect such data on the entire traffic stream. Existing techniques assume that the road is planar which limits the application of the video-based traffic data collection to the plain terrains. With the objective to collect trajectory data from mountainous terrain, the present study proposes an approach to convert the pixel coordinates into real-world coordinates. The hypothesis was that a non-planar scene could be converted into a sequence of piece-wise planar scenes with a separate projection matrix for each planar region. The analysis shows that the proposed method could effectively transform the pixel coordinates into the real-world coordinates. Comparison of the estimated and observed speed/path profiles indicate the adequacy of the proposed method in collecting video-based trajectory data from mountainous terrain.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Vehicle trajectory data extraction from the horizontal curves of mountainous roads



    Published in:

    Transportation Letters ; 15 , 9 ; 1055-1065


    Publication date :

    2023-10-21


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Vehicle Speed Characteristics and Alignment Design Consistency for Mountainous Roads

    Nama, Suresh / Maurya, Akhilesh K. / Maji, Avijit et al. | Springer Verlag | 2016

    Free access


    Safety Evaluation of Horizontal Curves on Rural Undivided Roads

    Khan, Ghazan / Bill, Andrea R. / Chitturi, Madhav V. et al. | Transportation Research Record | 2013


    Signing and marking of substandard horizontal curves on rural roads

    Nielsen, M. / Griebe, P. / PTRC Education and Research Services | British Library Conference Proceedings | 1998


    A Study on Driving Performance Along Horizontal Curves of Rural Roads

    Calvi, Alessandro | Taylor & Francis Verlag | 2015