CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12302 > Article
Paper
23 November 2022 Safety evaluation method based on spatio-temporal proximity index for bottleneck area of expressway
Xiaoran Qi, Yongqi Chen
Author Affiliations +
Proceedings Volume 12302, Seventh International Conference on Electromechanical Control Technology and Transportation (ICECTT 2022); 123023O (2022) https://doi.org/10.1117/12.2645661
Event: Seventh International Conference on Electromechanical Control Technology and Transportation (ICECTT 2022), 2022, Guangzhou, China
Abstract
Expressway plays a significant role in promoting social and economic development, while traffic safety matters are following. In actual expressway scenario, events such as occupying-road constructions and traffic accidents will narrow carriageways and obviously decrease the traffic capacity. Therefore, it is particularly important to improve the effectiveness of security management in bottleneck areas. To describe the driving features in bottleneck areas, this paper proposes a safety evaluation method for expressway bottleneck areas based on the traffic Spatio-temporal proximity index. In the proposed method, the time to collision (TTC) and post encroachment time (PET) indexes are applied to describe the proximity characteristic in both time and space dimensions and then calculate the indicators of the bottleneck area. Then, the fuzzy C-means (FCM) algorithm is used for classifying the risk levels so that the thresholds of TTC and PET can be obtained and the risk factor of bottleneck area is further calculated, due to which the safety level of the expressway bottleneck area is comprehensively evaluated. Finally, the proposed method is simulated and the performance is analyzed using VISSIM. Simulation results show that the safety level is in accordance with its actual area characteristics and the proposed method can surely provide reliable theory support for the expressway traffic safety management.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Xiaoran Qi and Yongqi Chen "Safety evaluation method based on spatio-temporal proximity index for bottleneck area of expressway", Proc. SPIE 12302, Seventh International Conference on Electromechanical Control Technology and Transportation (ICECTT 2022), 123023O (23 November 2022); https://doi.org/10.1117/12.2645661
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 8 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Safety
Roads
Algorithms
Factor analysis
Fuzzy logic
Time series analysis
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top