TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Quantifying and Measuring Travel Time Reliability for In-Vehicle Navigation Systems

Accession Number:

01090999

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

This paper introduces a new measure of travel time reliability, for implementation in the dynamic routing algorithm of an intelligent car navigation system. The measure is based on the log-normal distribution of travel time on a link and consists of two indices corresponding to the extreme values of the distribution, such that they reflect the shortest and longest travel times that may be experienced on the link. Through a series of mathematical manipulations, the indices are expressed in terms of the characteristic values of the speed distribution on the link. An expression relating the indices of a route and the indices of the individual links forming it is derived. The accuracy of the measure is then assessed through a field experiment and the results are presented.

Monograph Accession #:

01084478

Report/Paper Numbers:

08-1688

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Kaparias, Ioannis
Bell, Michael G H
Belzner, Heidrun

Pagination:

15p

Publication Date:

2008

Conference:

Transportation Research Board 87th Annual Meeting

Location: Washington DC, United States
Date: 2008-1-13 to 2008-1-17
Sponsors: Transportation Research Board

Media Type:

DVD

Features:

Figures (2) ; References (27) ; Tables (1)

Subject Areas:

Data and Information Technology; Highways; Operations and Traffic Management; I71: Traffic Theory

Source Data:

Transportation Research Board Annual Meeting 2008 Paper #08-1688

Files:

BTRIS, TRIS, TRB

Created Date:

Jan 29 2008 4:01PM