Evaluating Speed Reduction Effects of Parallelogram-shaped Pavement Markings at Pedestrian Crosswalks on Urban Roads in China

The primary objective of this study was to evaluate the effects of parallelogram-shaped pavement markings on vehicle speeds and speed violations in vicinity of pedestrian crosswalk on urban roadways in China. The research team collected more than 6,000 speed observations at seven sites. T-test and proportionality test were conducted to identify if the effects of parallelogram-shaped pavement markings on vehicle speeds and speed violations were statistically significant. The speed data analysis results showed that parallelogram-shaped pavement markings significantly reduce vehicle speeds and speed violations in vicinity of pedestrian crosswalks. Speed profiles were developed using speed data measured at varying distances from pedestrian crosswalks. The results showed that the influence area of parallelogram-shaped pavement markings was generally less than 0.3 km. Drivers usually start to decelerate vehicle speeds at about 100 to 150 meters ahead of the pedestrian crosswalks and vehicle speeds are recovered at about 100 to 150 meters after pedestrian crosswalks.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AHB50 Traffic Control Devices.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Guo, Yanyong
  • Liu, Pan
  • Liang, Qiyu
  • Chen, Jun
• Conference:
  • Transportation Research Board 93rd Annual Meeting
  • Location: Washington DC
  • Date: 2014-1-12 to 2014-1-16
• Date: 2014

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: 14p
• Monograph Title: TRB 93rd Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Crosswalks; Road markings; Speed control; Streets; Traffic violations
• Uncontrolled Terms: Parallelogram
• Geographic Terms: China
• Subject Areas: Design; Highways; Operations and Traffic Management; Pedestrians and Bicyclists; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 01520745
• Record Type: Publication
• Report/Paper Numbers: 14-4241
• Files: TRIS, TRB, ATRI
• Created Date: Mar 31 2014 3:03PM