Safety assessment of the buffer section of maintenance work zone is crucial for the safety of maintenance staff and travelling vehicles. To make up for the limitations of current methods to do timely safety assessment, this study proposes a fast method based on naturalistic driving, automatic segmentation technology, and spatial clustering analysis. Firstly, collect vehicle behaviour data by naturalistic driving method; secondly, extract fragments in the data containing traffic conflict information using the automatic segmentation technology; thirdly, cluster these fragments by kernel density analysis to find the location of the high-density point of traffic conflict (Otc); finally, calculate the stopping sight distance (SSD) that vehicles need to stop completely from Otc, measure the distance Lꞌ between Otc and the work area, and compare SSD, Lꞌ with the buffer section length L, then the safety of the buffer section of maintenance work zone can be assessed. Practice has proved that this novel method can collect the behaviour data of vehicles passing through quickly and flexibly, and do a timely safety assessment for the zone, thus can better meet the actual needs of maintenance.
Novel fast safety assessment method for the buffer section of maintenance work zone
IET Intelligent Transport Systems ; 13 , 5 ; 773-779
2019-01-14
7 pages
Article (Journal)
Electronic Resource
English
pattern clustering , buffer section length , vehicle behaviour data , travelling vehicles , maintenance engineering , road safety , road vehicles , safety assessment method , maintenance work zone , kernel density analysis , automatic segmentation technology , naturalistic driving method , road traffic , traffic engineering computing , traffic conflict information , spatial clustering analysis
Metadata by IET is licensed under CC BY 3.0
Novel fast safety assessment method for the buffer section of maintenance work zone
Wiley | 2019
|Work-Zone Safety and Maintenance Management
NTIS | 1984
|Highway Evaluation of Maintenance Work Zone Safety Devices
British Library Conference Proceedings | 1992
|Automotive engineering | 1990
|