A Research Project Report

For the Center for ITS Implementation Research (ITS)

A U.S. DOT University Transportation Center

Ilsoo Yun

Department of Civil Engineering`

Email: iy6m@virginia.edu

Dr. Byungkyu (Brian) Park

Department of Civil Engineering

Email: bpark@virginia.edu

Center for Transportation Studies at the University of Virginia produces outstanding transportation professionals, innovative research results and provides important public service. The Center for Transportation Studies is committed to academic excellence, multi-disciplinary research and to developing state-of-the-art facilities. Through a partnership with the Virginia Department of Transportation’s (VDOT) Research Council (VTRC), CTS faculty hold joint appointments, VTRC research scientists teach specialized courses, and graduate student work is supported through a Graduate Research Assistantship Program. CTS receives substantial financial support from two federal University Transportation Center Grants: the Mid-Atlantic Universities Transportation Center (MAUTC), and through the National ITS Implementation Research Center (ITS Center). Other related research activities of the faculty include funding through FHWA, NSF, US Department of Transportation, VDOT, other governmental agencies and private companies.

Disclaimer: The contents of this report reflect the views of the authors, who are responsible for the facts and the accuracy of the information presented herein. This document is disseminated under the sponsorship of the Department of Transportation, University Transportation Centers Program, in the interest of information exchange. The U.S. Government assumes no liability for the contents or use thereof.

Text Box: CTS Website Center for Transportation Studies
http://cts.virginia.edu University of Virginia
351 McCormick Road, P.O. Box 400742
Charlottesville, VA 22904-4742
434.924.6362

1. Report No.	2. Government Accession No.		3. Recipient’s Catalog No.
UVACTS-15-0-72
4. Title and Subtitle			5. Report Date
Feasibility Assessment of ITS Deployment Analysis System (IDAS) for ITS Evaluation			December 2003
			6. Performing Organization Code

7. Author(s) Ilsoo Yun and Byungkyu (Brian) Park			8. Performing Organization Report No.

9. Performing Organization and Address			10. Work Unit No. (TRAIS)
Center for Transportation Studies
University of Virginia			11. Contract or Grant No.
PO Box 400742 Charlottesville, VA 22904-7472
12. Sponsoring Agencies' Name and Address			13. Type of Report and Period Covered
Office of University Programs, Research and Special Programs Administration US Department of Transportation 400 Seventh Street, SW Washington DC 20590-0001			Final Report
			14. Sponsoring Agency Code

15. Supplementary Notes

16. Abstract
This study investigated the feasibility of utilizing the ITS Deployment Analysis System (IDAS) program version 2.2 as a tool for evaluating ITS deployment plans. Firstly, an online survey was conducted among MPO staff in the US in order to understand the usage and the issues in the IDAS for the ITS deployment plan evaluation. Secondly, case studies were carried out to examine the benefits of deploying several popular ITS options. The survey results indicated that the usage of the IDAS program was somewhat limited among MPOs. The survey results also indicated that the most desired updates in the IDAS program were (i) elaborating ITS impact methodologies, (ii) upgrading default values in the cost and benefit modules and (iii) incorporating emission factors based on MOBILE 6. The case studies of Hampton Roads area and a simple network with six popular ITS options identified the following three issues: (i) overestimation of ITS option benefits when the benefits are estimated from travel time savings, (ii) incorrect interpolation on travel time reliability rates for non-integer V/C ratios, and (iii) insensitive cost savings for combined ITS options.
17 Key Words		18. Distribution Statement
Intelligent Transportation Systems (ITS), ITS Deployment Analysis System IDAS), Feasibility Assessment		No restrictions. This document is available to the public.

Abstract

This study investigated the feasibility of utilizing the ITS Deployment Analysis System (IDAS) program version 2.2 as a tool for evaluating ITS deployment plans. Firstly, an online survey was conducted among MPO staff in the US in order to understand the usage and the issues of the IDAS program for the ITS deployment plan evaluation. Secondly, case studies were carried out to examine the benefits of deploying several popular ITS options.

The survey results indicated that the usage of the IDAS program was somewhat limited among MPOs. The survey results also indicated that the most desired updates in the IDAS program were (i) elaborating ITS impact methodologies, (ii) upgrading default values in the cost and benefit modules and (iii) incorporating emission factors based on MOBILE 6. The case studies of Hampton Roads area and a simple network with six popular ITS options identified three issues: (i) overestimation of ITS option benefits when the benefits are estimated from travel time savings, (ii) incorrect interpolation on travel time reliability rates for non-integer V/C ratios, and (iii) insensitive cost savings for combined ITS options.

Table of Contents

1 Introduction. 8

2 ITS Deployment Analysis System (IDAS) 8

2.1 Structure. 9

2.2 Benefit-Cost Summary and Performance Summary. 9

3 IDAS Usage Survey. 10

3.1 Operation of Survey. 10

3.2 Survey Results. 10

4 Hampton Roads Case Study for IDAS Feasibility. 13

4.1 Hampton Roads Area. 13

4.2 Strategic ITS Deployment Plan in Hampton Roads. 14

4.2.1 COMPARE. 14