Research on Optimization of Speed Limit Setting of Deceleration Zone at U-Shaped Left-Turn Three-Road Intersection

DOI

10.2991/978-94-6463-610-9_25How to use a DOI?

Keywords

U-turn; Reducer belt; Ttraffic simulation; VISSIM model; MOVES model; Vehicle exhaust emissions

Abstract

Intersection is a very important part of the road system. It is the concentrated part of all kinds of road traffic and one of the places where accidents are most likely to occur. Therefore, the design and management of intersection is very important for urban traffic flow and safety. By combining VISSIM simulation software with SSAM software and MOVES emission model, this paper uses traffic simulation software VISSIM to simulate 125 schemes composed of three factors: different traffic composition, road speed limit and vehicle deceleration through speed bumps. The optimization of speed limit at unsignalized U-turn left-turn intersections is studied from three aspects: delay, conflict and emission. The results show that the delay is the smallest when the speed limit is 0%. From the perspective of driving safety, the traffic conflict rate is the smallest when the speed limit is 30%. From the perspective of emission, when the speed limit is 10%, the vehicle exhaust emission is relatively small. From the comprehensive analysis of the three research indicators, it is concluded that the reasonable speed limit scheme for the speed limit of the speed reduction zone at the U-shaped left-turn intersection without signal control is to reduce the road speed limit by 10%.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Han Zhang
AU  - Baohua Guo
AU  - Yan Chen
PY  - 2024
DA  - 2024/12/16
TI  - Research on Optimization of Speed Limit Setting of Deceleration Zone at U-Shaped Left-Turn Three-Road Intersection
BT  - Proceedings of the 2024 International Conference on Rail Transit and Transportation (ICRTT 2024)
PB  - Atlantis Press
SP  - 222
EP  - 230
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-610-9_25
DO  - 10.2991/978-94-6463-610-9_25
ID  - Zhang2024
ER  -