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Title:

Assessment of Driver Performance Based on Driver Demography and Road Geometry

Accession Number:

01663094

Record Type:

Component

Abstract:

Safe maneuvering along rural two-lane horizontal curves depends on the perception of the curve section ahead of an individual driver. Improper negotiation along curves increases the risk of crashes. Such crash risk varies between drivers as well as horizontal curve characteristics. Hence, identifying not only the hazardous curve geometry but also the high-risk drivers explains the amount of risk associated crash risk. Therefore, efforts are made to compare the risk of different drivers in different horizontal curve characteristics using a new driver performance parameter. The critical average lateral acceleration beyond a safe threshold value is considered as the performance parameter for this purpose. The data is obtained from fixed-base driving simulator in which a total of 41 drivers drove through 26 different scenarios horizontal curves. The critical average lateral acceleration values are calculated for each driver at each horizontal curve. Three clusters of the estimated performance parameter representing low, moderate and high-risk situations are obtained by hierarchical clustering method. These clusters are analyzed for demographic feature of driver and geometric characteristics. The results indicated that the risk of younger drivers (age less than 25 years) with moderate driving experience (10000 to 50000km) is high compared to the other combinations of age and driving experience groups. Similarly, the curve radius less than 100m represented 2 to 10 times higher crash risk than other curves with larger radius. Thus it also explained the suitability of the newly developed performance parameter used in the study.

Supplemental Notes:

This paper was sponsored by TRB committee AND30 Standing Committee on Simulation and Measurement of Vehicle and Operator Performance.

Report/Paper Numbers:

18-06523

Language:

English

Authors:

Choudhari, Tushar
Maji, Avijit

Pagination:

6p

Publication Date:

2018

Conference:

Transportation Research Board 97th Annual Meeting

Location: Washington DC, United States
Date: 2018-1-7 to 2018-1-11
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Subject Areas:

Design; Highways; Safety and Human Factors

Source Data:

Transportation Research Board Annual Meeting 2018 Paper #18-06523

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2018 11:41AM