Pedestrian Safety Prediction Methodology for Urban Signalized Intersections

Abstract

A coordinated effort is under way to develop a Highway Safety Manual (HSM) for use in making quantitative estimates of the safety performance of specific highway types and quantitative estimates of proposed improvements to specific highway types. The highway types being addressed in the first edition of HSM are rural two-lane highways, rural multilane highways, and urban and suburban arterials. Explicit consideration of pedestrian safety on urban and suburban arterials is considered critical to implementation of the first edition of HSM. The objective of the present research was to develop a methodology for quantifying the effects of existing site characteristics and proposed improvements on urban and suburban arterials on pedestrian safety. The pedestrian safety prediction methodology has been developed to function as a component of the overall safety prediction methodology for urban and suburban arterials proposed for the first edition of HSM. In the present research, a methodology for prediction of vehicle–pedestrian collisions at signalized intersections was developed. This methodology includes base models for three- and four-leg signalized intersections and several accident modification factors.

Changing the Future?: Development and Application of Pedestrian Safety Performance Functions to Prioritize Locations in Seattle, Washington

“…Torbic et al combined databases from Toronto and Charlotte, North Carolina, that were used to develop SPFs for the first edition of the Highway Safety Manual and found that AADT and annual average daily pedestrians (AADP) are significant factors at threeto four-leg signalized intersections (5). Other significant predictors included maximum number of lanes crossed by a pedestrian in any one crossing maneuver, presence of bus stops, average neighborhood income, and number of commercial structures.…”

Safety Impacts of Push-Button and Countdown Timer on Nonmotorized Traffic at Intersections

“…The study suggested developing special leg form impactors for different countries with different average person height. A methodology was developed to quantify pedestrian safety effects related to existing site characteristics on urban and suburban arterials [12]. The study revealed that vehicle-pedestrian crash frequency was highest when the ratio of minor road AADT to major road AADT was the highest.…”

Carrefours en milieu urbain : quels risques pour les piétons ? Exemple empirique des quartiers centraux de Montréal, Canada

“…Tout d'abord, la largeur et le nombre de voies à traverser pour le piéton sont des éléments reconnus pour leur impact sur le risque : plus ce nombre est important, plus le temps d'exposition du piéton sur la chaussée est grand et plus il y a de risque de collision [19,20]. Torbic et al [21] ont aussi confirmé que la fréquence de collisions entre une voiture et un piéton est plus élevée aux carrefours ayant un plus grand nombre de voies à traverser. Des analyses récentes effectuées à Montréal ont confirmé cette tendance puisque Morency et al [22] ont démontré que la largeur de la route, la longueur de la traverse piétonne et le nombre de voies de circulation sont associés au nombre moyen de piétons blessés aux carrefours.…”