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Title:

Computational Determination of Passenger Cars' Braking Distances Equipped with Anti-Block Brake Systems

Accession Number:

01004402

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

One of the prerequisites for a safe motion of any vehicle along a prescribed road surface is that adequate Stopping Sight Distance (SSD) is provided at every point along the roadway. Existing design policies do not fully incorporate current vehicle technology trends when providing various design values. One of these technologies is the Anti-block Brake System (ABS), with which all modern vehicles are equipped. In effect, this negligence leads to an underestimation of the abilities of SSDs of modern cars and consequently to expensive road designs. Therefore, an investigation of the actual braking distances of a medium sedan passenger car, taking into consideration the current industrial provisions for this type of car, was carried out based on a computational model developed for this case. The computed model's SSD outputs for various initial speed values were compared with existing field measurements, where no significant difference was found, proving thus the reliability of the developed computational model. The immediate effect of the derived new SSD values is a significant reduction regarding the required radii for crest vertical curves and a relevant increase of the speed limit on left curved divided highways.

Monograph Accession #:

01004374

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Mavromatis, Stergios
Psarianos, Basil
Kasapi, Eva

Pagination:

17p

Publication Date:

2005

Conference:

3rd International Symposium on Highway Geometric Design

Location: Chicago Illinois, United States
Date: 2005-6-29 to 2005-7-1
Sponsors: Transportation Research Board; American Association of State Highway and Transportation Officials (AASHTO); Federal Highway Administration; American Society of Civil Engineers; Association Mondiale de la Route; International Road Federation; Institute of Transportation Engineers (ITE); National Association of County Engineers; Transportation Association of Canada (TAC); Chicago Department of Transportation; Illinois Department of Transportation; Illinois State Toll Highway Authority

Media Type:

CD-ROM

Features:

Figures (6) ; References (17) ; Tables (2)

Subject Areas:

Design; Highways; I20: Design and Planning of Transport Infrastructure

Files:

TRIS, TRB

Created Date:

Sep 30 2005 9:23AM