Modelling of pedestrian unsafe road crossing behavior: A comparison at a signalized and a non4 signalized crosswalk

摘要

Background: Many pedestrians are found to indulge in unsafe road crossing at both the signalized andnon-signalized crosswalks.Objective: To study and compare unsafe pedestrians’ crossing behaviour at a signalized and/or a non9signalized crosswalk.Method: F and t tests are performed to observe which crosswalk has the larger mean and variance of theavailable gap-size in the traffic flow and waiting time of pedestrians. Logistic regression models are fittedto examine the pedestrians’ risk and unsafe road crossing behavior at two crosswalks.Results: Mean and variance of available gap size and waiting time to pedestrian at a signalized crosswalk is larger than a non-signalized crosswalk. At a signalized crosswalk, probability of crossing by apedestrian with the gap size less than the adequate gap size is about 98%; and at a non-signalizedcrosswalk it is about 95%. At a signalized crosswalk only gap size parameter is significant. However, at anon-signalized crosswalk other predictor parameters (such as gender of the pedestrian, whether alone orin a group, type of the conflicting vehicle and traffic volume) are significant in determining the pedestrianroad crossing behavior. The odds of an unsafe road crossing by a pedestrian at a signalized crosswalk isabout 1.7 times higher than that at a non-signalized crosswalk.Conclusion: Pedestrians unsafely cross roads when gaps are available within the traffic flow, at bothsignalized and non-signalized crosswalks. Thus gap size is a significant parameter to determine thepedestrians’ unsafe road crossing behaviour at both crosswalks.