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Title:

Repeated Measurements of Lateral Position and Speed at Horizontal Curves on Very-Low-Volume Rural Road

Accession Number:

01590035

Record Type:

Component

Abstract:

Speed and lateral position are recognized as influential factors in the occurrence of road crashes at curves on two-lane rural roads. Studying the driver behavior at those road sections can help in preventing accidents by choosing the adequate countermeasures. However, driver behavior can be substantially non-uniform on very low-volume rural roads since the free-flow condition occurs. On the other hand, some literature studies affirm that road familiarity can be influential on driving behavior, by reporting changes due to the acquired familiarity with the road environment. An on-road test was planned on a very low-volume two lane rural road in the District of Bari in Puglia Region (Italy) over six days of testing, in order to acquire repeated measurements of speed and lateral position at curves. The main objective of this study was to find relationships between speed choice, lateral position and route familiarity at curves. In particular, lateral position data in terms of trajectories were analyzed by considering the influence of road geometry and different test driving conditions. General findings about curve driving behavior are presented here, showing curve-cutting tendencies and higher radii of curvature of the trajectories selected than the radius of the curve itself. Furthermore, lateral position, in terms of lateral displacement from the lane centerline, seems to be affected by route familiarity: the radius of curvature of the selected trajectories increases with the repetition of travel on the same route. Moreover, some relationships between speed and lateral displacement at the considered curves were found.

Supplemental Notes:

This paper was sponsored by TRB committee AFB30 Standing Committee on Low-Volume Roads.

Monograph Accession #:

01584066

Report/Paper Numbers:

16-3426

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Colonna, Pasquale
Intini, Paolo
Berloco, Nicola

ORCID 0000-0001-6191-6272

Perruccio, Antonio
Ranieri, Vittorio

Pagination:

19p

Publication Date:

2016

Conference:

Transportation Research Board 95th Annual Meeting

Location: Washington DC, United States
Date: 2016-1-10 to 2016-1-14
Sponsors: Transportation Research Board

Media Type:

Web

Features:

Figures; References (32) ; Tables

Geographic Terms:

Bari (Italy)

Subject Areas:

Highways; Safety and Human Factors; I82: Accidents and Transport Infrastructure; I83: Accidents and the Human Factor

Source Data:

Transportation Research Board Annual Meeting 2016 Paper #16-3426

Files:

TRIS, TRB, ATRI

Created Date:

Jan 12 2016 5:30PM