6th Lecture on the subject “Evaluation of Safety Performance of Road Infrastructure by Surrogate Measures”

The International Road Federation – India Chapter (IRF-IC) recently hosted its 6th lecture as part of the ongoing Lecture Series 2.0. The focus was on “Evaluation of Safety Performance of Road Infrastructure by Surrogate Measures”. The Guest Speakers at the evening were Dr. P. Vedagiri, Professor, Department of Civil Engineering, IIT Bombay, Dr. S.S. Puwar, Director-Technical, Gawar Construction Limited (GCL) and Prof. Indrajit Ghosh, Professor, Civil Engineering Department, IIT Roorkee.

Dr. P. Vedagiri, described the main objectives of Road Infrastructure, Haddon Matrix for Road Crash. He further highlighted the Risk factors for road traffic injury and road user diversity behavior. He explained the concept of Post Encroachment time representing the difference in time between the passages of the “offended” and “conflicted” road users over a common conflict zone (i.e. area of potential collision).

Dr. S.S. Puwar, explained surrogate safety measures and pyramids of traffic events. He also highlighted his study identifying the surrogate safety measures and their use to evaluate how they affect the crash and intensity of the crash. Microsimulation is applied to extract surrogate safety measures and also develop surrogate safety assessment models (SSAM).

Prof. Indrajit Ghosh, emphasized the analysis of Pedestrian Conflict with Right-Turning Vehicles at Signalized Intersections. He further described the Post Encroachment time, Time to vehicles, time to accidents, Deceleration to safety time, etc. He also pointed out the yielding Behavior of Pedestrians and Vehicles and explained the Modal Dominance Index.

Presentations by :

Dr. P. Vedagiri
Dr. S.S. Puwar
Prof. Indrajit Ghosh

Photogallery

Audio Recording