TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Extending Use of Archived ITS Data as Potential Management Tool to Evaluate Traveler Information on Dynamic Message Signs

Accession Number:

01091102

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Dynamic Message Signs (DMS) on freeways are often used to provide a variety of information to motorists including incident and construction information, travel time estimates and public service announcements such as Amber Alerts. The display of accurate travel time messages is currently of high importance to the Federal Highway Administration (FHWA) and state departments of transportation. The objective of this paper is to describe the development of an automated system for superimposing DMS messages on top of three-dimensional (contour) speed plots within an ITS data archive system. In order to aid operations personnel in the assessment of travel time message accuracy, the DMS messages are displayed as boxes that graphically represent the time, location and content of the message. Such a display can be used by traffic managers to visually assess the accuracy of DMS travel time messages. The new plotting system has been developed as an addition to the Portland Oregon Regional Transportation Archive Listing (PORTAL). PORTAL is the transportation data archive for the Portland metropolitan region and consists of a database of transportation data and a web-based interface providing graphical tools and data access for transportation managers, engineers and researchers. This paper describes how the DMS messages are processed, analyzed and interpreted. The addition of the DMS display to PORTAL will allow traffic engineers to quickly verify the validity of DMS travel time messages in near real-time.

Monograph Accession #:

01084478

Report/Paper Numbers:

08-1024

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Chavan, Priya
Tufte, Kristin A
Monsere, Christopher M
Stephens, Max
Bertini, Robert Lawrence

Pagination:

10p

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 (6) ; References (6) ; Tables (5)

Subject Areas:

Data and Information Technology; Highways; Operations and Traffic Management; I73: Traffic Control

Source Data:

Transportation Research Board Annual Meeting 2008 Paper #08-1024

Files:

BTRIS, TRIS, TRB

Created Date:

Jan 29 2008 3:21PM