A new measure of travel time reliability for in-vehicle navigation systems
A new measure of travel time reliability for in-vehicle navigation systems
This article 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.
202-211
Kaparias, Ioannis
e7767c57-7ac8-48f2-a4c6-6e3cb546a0b7
Bell, Michael
a762d32a-e6f9-452a-845d-6b139e0275e6
Belzner, Heidrun
63a4cc0b-73e1-4aea-a657-cc7c34dee48b
10 November 2008
Kaparias, Ioannis
e7767c57-7ac8-48f2-a4c6-6e3cb546a0b7
Bell, Michael
a762d32a-e6f9-452a-845d-6b139e0275e6
Belzner, Heidrun
63a4cc0b-73e1-4aea-a657-cc7c34dee48b
Kaparias, Ioannis, Bell, Michael and Belzner, Heidrun
(2008)
A new measure of travel time reliability for in-vehicle navigation systems.
Journal of Intelligent Transportation Systems, 12 (4), .
(doi:10.1080/15472450802448237).
Abstract
This article 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.
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Published date: 10 November 2008
Organisations:
Transportation Group
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Local EPrints ID: 402353
URI: http://eprints.soton.ac.uk/id/eprint/402353
ISSN: 1547-2450
PURE UUID: d48ad46e-4706-4965-a855-722649c9aa42
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Date deposited: 09 Nov 2016 16:33
Last modified: 15 Mar 2024 03:57
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Author:
Michael Bell
Author:
Heidrun Belzner
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