Browse > Article
http://dx.doi.org/10.12652/Ksce.2018.38.1.0081

Study of Downward Speed Limit of Main Roads on Traffic Accident and Effect Analysis - In Busan Metropolitan City -  

Lim, Chang-Sik (Busan Branch of Road Traffic Authority)
Choi, Yang-Won (Youngsan University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.38, no.1, 2018 , pp. 81-90 More about this Journal
Abstract
The purpose of this study is to evaluate the effect of downward speed limit of urban arterial roads at 29 sites in Busan Metropolitan Police Agency to reduce road traffic accidents from '10 to '15. As a result of analyzing the traffic accidents occurred for 1~3 years after the decrease in the speed limit, the number of traffic accidents decreased by 3.09% and the number of injured persons decreased by 8.76%, but the number of deaths decreased by 36.73% The results of this study are as follows. The average speed reduction rate of 6.31km/h was decreased by investigating the change of the vehicle speed before and after the downward speed limit, and the change of average speed was statistically significant in most of the sections. The rate of compliance with the speed limit increased by 10.26% p, which is considered to have greatly improved overall traffic safety. A survey conducted by residents near the target area with a lower speed limit showed that 57.9% of the respondents felt the driving speed of the vehicle was lowered. However, this project was focused on vehicles with limited speed road signs and traffic safety signs, Only 25.8% of respondents said walking safety was improved. In the future, it is necessary to consider the safety of pedestrians by improving roads around roads such as road curvature and separation. In addition, there is a clear positive result in terms of decreasing the fatal accidents in the downward speed limit zone of Busan Metropolitan Subway. However, more detailed analysis is needed for the 29 accidents. Therefore, it is expected that traffic practitioners will be able to utilize it as a basis to increase the accident reduction effect by setting an appropriate speed limit based on the easy and objective grounds.
Keywords
Arterial highway; Speed limit; Average traffic speed; Retardation also; Effectiveness analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Cirillo (1968). Interstate system accident research study II, Interim Report.
2 Elvik, R. (2009). The power model of the relationship between speed and road safety-Update and new analyses, TOI Report.
3 Elvik, R. (2013). "A re-parameterisation of the power model of the relationship between the speed of traffic and the number of accidents and accident victims." Accident Analysis and Prevention, Vol. 50, pp. 854-860.   DOI
4 Elvik, R., Christensen, P. and Amundsen, A. (2004). Speed and road accidents-An evaluation of the power model, TOI Report.
5 Fildes, B. N., Runmbold, G. and Leening, A. (1991). Speed behaviour and briver's bttitude to speeding, Report No. 16, Vic Roads, pp. 56-69.
6 Garber, N. J. and Gadirau, R. (1988). "Speed Variance and Its Influence on Accidents." AAA Foundation for Traffic Safety, Washington, Dc, pp. 1-34.
7 Hauer, E. (2009). "Speed and Safety." Transportation Research Record: Journal of the Transportation Research Board, Vol. 2103, pp. 11-12.
8 Hauer, E. and Bonnesson, J. (2006). "An empirical examination of the relationship between speed and road accidents based on data by Elvik." Christensen and Amundsen, HCHRP, 17-25, pp. Fl-F53.
9 Hossseinlou, M. H., Kheyrabadi, S. A. and Zolfaghari, A. (2015). "Determining optimal speed liminits in traffic networks." IATSS Research, Vol. 39, No. 1, pp. 36-21.   DOI
10 Http://Safety.Fhwa.Dot.Gov/Uslimits.
11 Austroads (2008). Guide to road safety (Part3: Speed limits and speed management).
12 Choi, S. L. (2014). A case of speed limits improvement for prevention of traffic accidents in Japan, Kukto Yeon Gu.
13 Nilsson, G. (2004). Traffic safety dimensions and the power model to describe the effect of speed on safety, Lund Institute of Technology, Bulletin 221, Sweden.
14 Jr. Parker, M. R. (1997). Effects of raising and lowering speed limits on selected roadway sections. Fhwa-Rd-97-084.
15 Kang, S.Y., Lee, S. B. and Lim, J. B. (2017). "Development of speed limits estimation model and analysis of effects in urban roads." Journal of Korea Transportation Research Society, Vol. 32, No. 2, pp. 132-146 (in Korean).
16 Kim, S. O., Jeon, J. H., Kim, I, S. and Lee, J. H. (2015). "Evaluation of the effectiveness of lowering speed limit in urban area." Journal of Korea Transportation Research Society, Vol. 12, No. 4, pp. 7-12 (in Korean).
17 OECD/ECMT (2006). Speed management, pp. 34-195.
18 OECD/ITF (2016). Road safety annual report, pp. 33-44.
19 Stuster, J. and Coffman, Z. (1998). Synthesis of safety research related to speed and speed management, Fhwa.
20 TAAS, Traffic Accident Analysis System, Available at: http://taas.koroad.or.kr.
21 Taylor, M. C., Lynam, D. A. and Baruya, A. (2000). The effects of drivers' speed on the frequency of road accidents, Trl 421.
22 Trb (1998). Managing speed : Review of current practive for setting and enforcing speed limits, Speacial Report, 254, pp. 15-138.
23 Who (2008). Speed management : A road safety manual for decisionmakers and practitioners, pp. 2-21.
24 Who (2013). Global status report on road safety, pp. 9-13.
25 Who (2015). Global status report on road safety, pp. 11-15.