RT Journal Article
SR Electronic
A1 Mohanty, Malaya
A1 Sarkar, Bitati
A1 Gorzelańczyk, Piotr
A1 Panda, Rachita
A1 Gandupalli, Srinivasa Rao
A1 Ankunda, Ampereza
T1 Developing Pedestrian Fatality Prediction Models Using Historical Crash Data: Application of Binary Logistic Regression and Boosted Tree Mechanism
JF Communications - Scientific Letters of the University of Zilina
YR 2023
VO 25
IS 2
SP D45
OP D53
DO 10.26552/com.C.2023.036
UL https://komunikacie.uniza.sk/artkey/csl-202302-0018.php
AB Pedestrian fatality rate plays a key role in examining effectiveness of the road safety. The present study attempts to examine the effect of various categories of accused vehicles and the average 85<sup>th</sup> percentile speed at accident location on the pedestrian crash fatality. The study also attempts to develop pedestrian crash severity models using the binary logistic regression and boosted trees technique. Historical crash data, along with the video recording technique at accident sites, have been utilized for the present study. From regression equations, it is observed that when the heavy vehicle (HV) hits a pedestrian as compared to two-wheeler (2W), the average chance of death increases 2.44 times. According to the Boosted tree model, the contribution of speed is 60 %, whereas the contribution of category of accused vehicle is 40 % for pedestrian fatality prediction. The study should help in planning better strategies like all red time at intersections or pedestrian foot over bridge at critical locations.