IDENTIFYING THE CHANGE IN TRAVEL SPEED AND CRASH FREQUENCIES AFTER REDUCING A SPEED LIMIT IN NAEBU EXPRESSWAY, SEOUL

被引：0

作者：

Park, Jungsoo ^{[1
]}

Kim, Do-Gyeong ^{[1
]}

机构：

[1] Univ Seoul, Dept Transportat Engn, Seoul, South Korea

来源：

TRANSPORTATION AND MANAGEMENT SCIENCE | 2008年

关键词：

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The speed limit of Naebu Expressway (which is also called Inner City Expressway) was decreased from 80kph to 70kph to reduce the number of crashes on May 1, 2006 by the Seoul Metropolitan Police Agency (SMPA). The objective of this study is to examine the impact of reducing speed limit in Naebu Expressway on travel speed and crash frequencies using the before and after study with comparison group method. The results showed that average travel speeds are slightly decreased after reducing the speed limit. With regard to traffic accidents, however, the number of crashes was found to increase by 16% compared to the number of crashes occurred during the before period.

引用

页码：635 / 644

页数：10

共 4 条

[1] Travel Speed Effects of 70 mph Speed Limit Change
Nassereddine, Hiba
Rafferty, Peter
Bill, Andrea
Noyce, David A.
[J]. INTERNATIONAL CONFERENCE ON TRANSPORTATION AND DEVELOPMENT 2020: TRANSPORTATION SAFETY, 2020, : 169 - 181
[2] Comparing the effects of ramp metering and variable speed limit on reducing travel time and crash risk at bottlenecks
Li, Zhibin
Xu, Chengcheng
Li, Dawei
Liu, Pan
Wang, Wei
[J]. IET INTELLIGENT TRANSPORT SYSTEMS, 2018, 12 (02) : 120 - 126
[3] Effect of increasing the freeway posted speed limit on entry ramp speed-change lane crash frequency
Tagar S.
Pulugurtha S.S.
[J]. Transportation Engineering, 2021, 4
[4] Combined variable speed limit and lane change guidance for secondary crash prevention using distributed deep reinforcement learning
Peng, Chang
Xu, Chengcheng
[J]. JOURNAL OF TRANSPORTATION SAFETY & SECURITY, 2022, 14 (12) : 2166 - 2191

← 1 →