Abstract
Safety, comfort, convenience and minimal delay are essential for pedestrians at mid-block crosswalk locations. Therefore, it is necessary to evaluate the quality of crosswalk with these qualitative parameters. In this study, qualitative parameters such as safety, crossing opportunities (available time gaps) and delay index values are considered as a single measure of effectiveness as a Pedestrian Crossing Index (PCI) for evaluation of Quality Of Service (QOS) at unprotected mid-block crosswalk locations under mixed traffic conditions. Further, the study is aimed at identifying the factors contributing to the pedestrian QOS. In order to achieve these objectives, field surveys were conducted at eight different unprotected mid-block crosswalk locations to collect pedestrian individual (age and gender), behavioural, traffic and roadway characteristics. An ordered probit model has been developed to find out the significant factors contributing to the pedestrian QOS by taking QOS as the dependent variable and other collected variables as independent variables. The model results show that several factors have significant effect on pedestrian QOS and out of these, factors such as rolling behaviour, speed change behaviour of pedestrian, vehicle speed, number of lanes and number of vehicle encountered were identified as the primary factors affecting pedestrian QOS at unprotected midblock crosswalk locations. The developed model may be useful for design and evaluation of the existing pedestrian QOS at unprotected mid-block crosswalk locations under mixed traffic conditions.
Highlights
Pedestrians are vulnerable road users and mobility as well as safety of the pedestrian at unprotected mid-block crosswalk locations is still vague under mixed traffic conditions
For the ordered probit model, pedestrian Quality Of Service (QOS) was considered as the dependent variable and coded as QOS A = 0 to QOS F = 5 and other set of extracted data was considered as explanatory variables
A positive value means that the explanatory variable increases the probability of pedestrian QOS F with an increase in its magnitude and that a negative value means that an increase in the variable gives a higher
Summary
Pedestrians are vulnerable road users and mobility as well as safety of the pedestrian at unprotected mid-block crosswalk locations is still vague under mixed traffic conditions. The unprotected mid-block crosswalks are locations with median opening to allow pedestrian to cross the road, to access the adjacent land-use facilities, such as malls, shopping complexes, hospitals, residential apartment, bus stops, etc. These crosswalks are away from intersection locations and most of these are unsignalized, with or without marking or signboards to control motorized vehicle movement. Such a LOS measure helps in evaluation of the existing facilities as well as design of new transportation facilities
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