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Title:

Evaluation of Brake Reaction Time and Evasive Action Performance of Motorized Two-Wheeler Riders towards Jaywalking through Mock-Up Control Studies

Accession Number:

01764193

Record Type:

Component

Abstract:

Jaywalking (illegal pedestrian crossing) demands additional attention from motorized road users as it gives less time to react to such situations and may result into a road accident. Brake reaction times (BRTs) and evasive action maneuvers decide the crash severity of such situations. This study attempts to understand the motorized two-wheeler (MTW) rider behavior and its interaction with the pedestrians during jaywalking using mock-up control study. Four different mock-up pedestrian crossing scenarios: two surprise crossing, one unexpected crossing, and one stationary, were designed to understand the MTW rider yielding behavior. The BRTs, approach speeds, decelerations, heading, and yaw rate were analyzed for fifty MTW riders. The findings of the study revealed that, 90th percentile BRT for the unexpected and surprise events were 3.62 and 1.6 s respectively. Further, a regression models of BRT with approach speeds and time to collision (TTC) were established. The study also classified braking maneuvers into hard and soft braking. The analysis results revealed that, 32% of drivers performed hard braking in case of surprise scenario and no hard braking was observed for stationary and unexpected scenario. In addition, analysis of yaw rate indicated loss of control of the MTW at the end of the maneuver for surprise events, indicating need for training MTW riders in critical situations. The observations from the paper are useful in the development of countermeasures to improve the safety of pedestrians and MTW riders.

Supplemental Notes:

This paper was sponsored by TRB committee ACH50 Standing Committee on Road User Measurement and Evaluation.

Report/Paper Numbers:

TRBAM-21-04039

Language:

English

Corporate Authors:

Transportation Research Board

Authors:

Akinapalli, Pradhan Kumar
Pawar, Digvijay S

Pagination:

19p

Publication Date:

2021

Conference:

Transportation Research Board 100th Annual Meeting

Location: Washington DC, United States
Date: 2021-1-5 to 2021-1-29
Sponsors: Transportation Research Board; Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References (33) ; Tables

Subject Areas:

Highways; Pedestrians and Bicyclists; Safety and Human Factors; Vehicles and Equipment

Source Data:

Transportation Research Board Annual Meeting 2021 Paper #TRBAM-21-04039

Files:

TRIS, TRB, ATRI

Created Date:

Dec 23 2020 11:22AM