Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2754

Full Length Research Paper

Towards the pedestrian delay estimation at intersections under vehicular platoon caused conflicts

  Chen Kuan-min1* Luo Xiao-qiang1, Ji Hai2 and Zhao Yang-dong3        
  1School of Highway, Chang’an University, Xi’an 710064, China. 2School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China. 3First Branch, CCCC First Highway Consultants Co., Ltd, Xi’an 710075, China.
Email: [email protected]

  •  Accepted: 22 April 2010
  •  Published: 31 May 2010

Abstract

 

This paper attempts to develop a pedestrian delay estimation model for intersections considering automobile-pedestrian conflicts induced by driver’s bad behaviour of not giving way to pedestrians. Firstly, level of service (LOS) divisions for signalized and unsignalized intersection crosswalks for pedestrians in China are proposed and 6 levels are ranked using the pedestrians' perceptions of comfort, safety and psychological limitation as well as acceptable delay. Then pedestrian delay is analyzed at non-signalized intersection and signalized intersection, and the latter is divided into two parts: signal delay and interrupted delay based on whether pedestrian signal and vehicle signal are separated thoroughly. For the case of signal control, delay estimation model is constructed with pedestrian gathering and dissipating characteristics. In order to test the effectiveness of this proposed delay estimation model, we use Vissim to simulate the pedestrian delay at signalized and unsignalized intersections. Compared with the simulated delay, the delay values derived from this proposed model has better performance of EI (error indicator) in response to the observed ones, providing useful reference in improving pedestrian crossing environment at intersections.

 

Key words: Pedestrian delay estimation, signalized intersection, level of service, Vissim simulation.