Browse > Article
http://dx.doi.org/10.12815/kits.2019.18.6.60

Analysis on Installation Criteria for Scrambled Crosswalks Considering Vehicle and Pedestrian Traffic Volume  

NAM, Chanwoo (Dept. of Seoul Police, Police)
KHO, Seung-Young (Dept. of Civil and Environmental Engineering, Seoul Nat'l Univ.)
CHO, Shin-Hyung (Institute of Engineering Research, Seoul Nat'l Univ.)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.18, no.6, 2019 , pp. 60-75 More about this Journal
Abstract
Nowadays, interest in safety of pedestrians who are relatively weak when compared with vehicles increases. Also, concern for pedestrian accidents on crosswalks increases. For these reasons, scrambled crosswalks which are considered to contribute pedestrian safety by reducing conflicts between vehicles and pedestrians are actively discussed and there are also a few intersections where they are actually installed. However, scrambled crosswalks must include all-red phase for all vehicle traffic flows, which inevitably leads to increase of lost time per cycle. Therefore, evaluation in terms of efficiency should be done before installation of scrambled crosswalks. This research suggests installation criteria for scrambled crosswalks so that it is possible to judge whether installation of scrambled crosswalks is appropriate only by surveying vehicle traffic volume and pedestrian traffic volume. This research derives optimum cycle length from signal optimization models which considers both vehicle traffic volume and pedestrian traffic volume. From this optimum cycle length, this research compares total delay time before and after installation of scrambled crosswalks. From an analysis, two research results are derived. Firstly, there is critical traffic volume above which installation of scrambled crosswalks can not efficient. Secondly, appropriate areas for installation of scrambled crosswalks are different by each signal intersection or by each signal system and those difference vary. From these results, this research suggests installation criteria for scrambled crosswalks which consists of two steps. The delay time of the pedestrians may be increased after the diagonal crosswalk is installed, but it may be desirable to install in consideration of the appropriate traffic level to ensure safety.
Keywords
Installation criteria; Pedestrian traffic volume; Scrambled crosswalk; Signal optimization; Vehicle traffic volume;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Tu T. V. and Sano K.(2014), "Simulation Based Analysis of Scramble Crossings at Signalized Intersections," International Journal of Transportation, vol. 2, no. 2, pp.1-14.
2 Yu C., Ma W., Han K. and Yang X.(2017), "Optimization of Vehicle and Pedestrian Signals at Isolated Intersections," Transportation Research Part B, vol.98, pp.135-153.   DOI
3 Alhajyaseen W., Nakamura H. and Li M.(2010), "A Traffic Signal Optimization Strategy Consider Both Vehicular and Pedestrain Flows," 89th Transportation Research Board Annual Meeting, At Washington DC.
4 Choi R.(2014), Comparison of Internal and External Installation Standards of Scrambled Crosswalk and its Effectiveness Analysis, Gachon University, Seongnam, Gyeonggi, South Korea.
5 Guo R. and Lu X.(2016), "Delays for Both Pedestrians Classified and Vehicles at a Signalized Crosswalk," Journal of System Science Complex, vol. 29, no. 1, pp.202-218.   DOI
6 Jeong S. Y.(2013), Development of Warrants for Scrambled Crosswalk, Ajou University, Suwon, Gyeonggi, South Korea.
7 Han Y. H., Kim Y. C. and Yang C. H.(2011), "An analysis Procedure for Evaluating Pedestrian Scramble Construction," Journal of Korean Society of Transportation, vol. 29, no. 4, pp.73-83.
8 Jang I. J. (2015), A Study on the Standards for Crosswalks, Police Science Institute.
9 Jang Y. J., Kim, H. J. and Son B. S.(2007), "Analysis of Vehicular Delay on Scrambled Crosswalk," Proceedings of the KOR-KST Conference, vol. 2007, no. 1, pp.403-411.
10 Jeon J. W., Lee S. B., Kim J. W. and Park J. T.(2009), "Development a Guideline for the Installation of Scrambled Crosswalk," Proceedings of the KOR-KST Conference, vol. 2009, no. 1, pp.719-724.
11 Kim K. H. and Kim W. H.(2007), "Development of Warrants for Scrambled Crosswalk," Proceedings of the KOR-KST Conference, vol. 2007, no. 3, pp.502-511.
12 Lee D. H.(2016), A Development of Warrants for Scrambled Crosswalk Using ANP, Ajou University, Suwon, Gyeonggi, South Korea.
13 Park B. H., Jung Y. I. and Kim K. H.(2012), "Traffic Accident Reduction Effects of the All-Red Clearance Interval (ARCI) Operation," Journal of Korean Society of Transportation, vol. 30, no. 2, pp.21-27.   DOI
14 Roess R. P., Prassas E. S. and McShane W. R.(2010), Traffic Engineering 4th Edition, Pearson, pp.461-525.
15 Sin E. K. and Kim J. H.(2004), "A signal Optimization Model Integrating Traffic Movements and Pedestrian Crossings," Journal of Korean Society of Transportation, vol. 22, no. 7, pp.131-137.
16 Son K. H., Jang M. S. and Kim Y. C.(1997), "Development of Warrant for Scrambled Pedestrian Crossing," Journal of Korean Society of Transportation, vol. 15, no. 2, pp.105-122.