Optimization of pedestrian phase patterns and signal timings for isolated intersection

This paper establishes quantitative criteria for selecting pedestrian phase patterns between the exclusive pedestrian phase (EPP) and the normal two-way crossing (TWC) with both safety and efficiency factors traded-off in an economic evaluation framework. The safety effect is assessed by modeling the number of pedestrian-vehicle exposures and pedestrian violations (i.e., pedestrian noncompliance) based on the traffic conflict technique (TCT); and the operational efficiency is measured with a new model considering pedestrian delay due to signal, conflicts, and detour. Both safety and efficiency performance indices are converted to monetary values in an integrated model to simultaneously select pedestrian phase patterns and optimize signal timings of an intersection with two phases. Case study results have shown the promising property of the proposed approach to assist transportation professionals in properly selecting pedestrian phase patterns at signalized intersections.

[1]  Hong Kam Lo,et al.  CONTROL STRATEGIES FOR OVERSATURATED TRAFFIC , 2004 .

[2]  Zong Tian,et al.  Pedestrian Timing Alternatives and Impacts on Coordinated Signal Systems Under Split-Phasing Operations , 2001 .

[3]  David R. Ragland,et al.  Pedestrian Scramble Signal in Chinatown Neighborhood of Oakland, California: An Evaluation , 2004 .

[4]  Dominique Lord,et al.  Analysis of Pedestrian Conflicts with Left-Turning Traffic , 1996 .

[5]  Bijan Vaziri.  EXCLUSIVE PEDESTRIAN PHASE FOR THE BUSINESS DISTRICT SIGNALS IN BEVERLY HILLS: 10 YEARS LATER. , 1998 .

[6]  Darcy M. Bullock,et al.  Recasting Dilemma Zone Design as a Marginal Cost–Benefit Problem , 2007 .

[7]  Francois Dion,et al.  COMPARISON OF DELAY ESTIMATES AT UNDER-SATURATED AND OVER-SATURATED PRE-TIMED SIGNALIZED INTERSECTIONS , 2004 .

[8]  D J Sherborne,et al.  Intelligent traffic signals for pedestrians: evaluation of trials in three countries , 1998 .

[9]  Hassan A. Karimi,et al.  A pedestrian network construction algorithm based on multiple GPS traces , 2013 .

[10]  Yue Liu,et al.  Optimization of pedestrian phase patterns at signalized intersections: a multi‐objective approach , 2013 .

[11]  P Gårder,et al.  Pedestrian safety at traffic signals: a study carried out with the help of a traffic conflicts technique. , 1989, Accident; analysis and prevention.

[12]  Herman F. Huang,et al.  The Effects of Pedestrian Countdown Signals in Lake Buena Vista , 2000 .

[13]  André Borrmann,et al.  A hybrid multi-scale approach for simulation of pedestrian dynamics , 2013 .

[14]  Stuart R Perkins,et al.  Traffic conflict characteristics-accident potential at intersections , 1968 .

[15]  Hong Kam Lo,et al.  Dynamic network traffic control , 2001 .

[16]  Sophie Midenet,et al.  Pedestrian crossing detection based on evidential fusion of video-sensors , 2009 .

[17]  S. Jensen.  Pedestrian Safety in Denmark , 1999 .

[18]  D R Marsh.  EXCLUSIVE PEDESTRIAN CONTROL FOR DUNEDIN'S CENTRAL BUSINESS DISTRICT , 1982 .

[19]  R. Machemehl,et al.  AN ANALYSIS OF PEDESTRIAN SIGNALIZATION IN SUBURBAN AREAS , 1999 .

[20]  Zengyi Yang,et al.  Signal Timing Optimization: Based on Minimizing Vehicle and Pedestrian Delay by Genetic Algorithm , 2012 .

[21]  Charles Zegeer,et al.  EFFECT OF PEDESTRIAN SIGNALS AND SIGNAL TIMING ON PEDESTRIAN ACCIDENTS , 1982 .

[22]  Rahim F Benekohal,et al.  Use of Genetic Algorithm for Phase Optimization at Intersections with Minimization of Vehicle and Pedestrian Delays , 2011 .

[23]  C M Abrams,et al.  SELECTION OF PEDESTRIAN SIGNAL PHASING , 1977 .

[24]  Richard Tay,et al.  Pedestrian Scramble Operations , 2009 .

[25]  A. S. Al-Ghamdi.  Using logistic regression to estimate the influence of accident factors on accident severity. , 2002, Accident; analysis and prevention.