This report continues the process of documenting and publicizing experience with, and prediction of, benefits from Intelligent Transportation Systems (ITS) in the context of continuing assessment of the ITS program. This empirical benefits review effort is part of a larger effort sponsored by the ITS Joint Program Office, Federal Highway Administration, to develop benefits knowledge about ITS implementation. This document summarizes major ITS benefits findings while referring the interested researcher to detailed studies or contacts. The progression of papers on the topic of ITS benefits seeks to improve the completeness and reliability of relevant data, with the ultimate goal being validated results from field measurement for all areas of ITS. The contents are organized in three sections. The first section, Introduction, includes goals for this paper, comments on previous benefits papers, definition of terms, and scope and organization of this document. Section 2 presents summaries of ITS benefits grouped by key outcome measures identified by the U.S. Department of Transportation. These include time benefits, benefits related to crashes, benefits related to fatalities, improvements in throughput, cost reductions, customer satisfaction, and other important outcomes such as emission and fuel impacts. Section 3 is a brief summary. (Author/publisher)
Samenvatting