By David Gillen, David Levinson
The 17 chapters during this publication, which advanced from a convention on measuring the contributions of ITS backed via the California division of Transportation in February 2002, research the prices and merits of ITS in an financial and company coverage context. part 1 examines the extensive topic of the way and what ITS contributes to the economic system and the way one makes a company case for ITS. part 2 comprises 3 chapters on ITS functions in mass transit. part three explores ITS purposes within the automobile/highway process. part four considers integrative concerns together with how ITS is perceived and the way it may be situated to enhance floor transportation. This quantity can be in particular worthwhile to researchers and coverage makers operating in transportation, transportation engineering, and the industrial research of transportation structures.
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Extra info for Assessing the Benefits and Costs of ITS: Making the Business Case for ITS Investments (Transportation,Research,Economics and Policy, 10)
Investments produced VMT and VHT. Aggregate observable VMT on the network, and the congestion and travel times on links were the measures of interest. ATIS is different. Investments in ATIS produce more benefits than can be measured using the old aggregate measures of transportation system performance. Measuring benefits has been an Achilles Heel for the ITS program. This is understandable because we haven’t focused on the real benefits of ITS. These benefits, now and in the future, are and will be hard to observe and measure.
Progress in applying ITS may have been slowed to date by a lack of understanding of these consumer benefits of ITS. As discussed in this chapter, we can value these benefits, properly defined, using customer satisfaction measurement methods. NOTES 1 2 3 4 5 6 7 8 9 10 See Daniel Brand, Conference Summary, “Moving Urban America,” Proceedings of the TRB post ISTEA Conference, Charlotte, NC, TRB Special Report 237, 1993, page 4. , see IVHS Strategic Plan, Report to Congress from the US Department of Transportation, December 18, 1992, pp.
In summary, travel time savings is an inadequate measure of the benefits of ATIS. Indeed, we don’t even know the sign of the change. With ATIS, travel times may increase—along with the benefits of ATIS. The emphasis on time savings in “Operation Time Saver” is misplaced. We need to unhook user benefit measures from the aggregate observable measures of VMT and VHT in a network that are needed to calculate the remaining safety and environmental impacts of ITS (Figure 1). Measuring changes in VMT and Chapter 3 30 VHT will dramatically underestimate the potential mobility benefits of ATIS—and thus most of the benefits of ATIS.
Assessing the Benefits and Costs of ITS: Making the Business Case for ITS Investments (Transportation,Research,Economics and Policy, 10) by David Gillen, David Levinson