Framework for the Evaluation of the Benefits of Intelligent TransportationSystems

摘要

This report discusses methods to assess the benefits of IntelligentTransportation Systems. It provides a comprehensive review of methods currently available in the United States. It then develops a framework for benefits assessment using benefit trees and emerging analysis methods for benefit studies at the sketch planning level. These efforts should lead to specifications for information needs for evaluating ITS projects and methods to compare ITS projects with other traditional capacity enhancing projects. The report includes a case study used to identify the break-even points of several ITS deployment options, including ramp metering, travel information systems, emergency response systems, and commercial vehicle operations under a variety of scenarios. These results can be used to identify and operate ITS projects so that they are likely to have the greatest payoff from their deployment.