United States Department of Transportation
i
Precursor Systems Analyses of Automated Highway Systems Resource Materials Preliminary Costs/Benefit Factors Analysis
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1995-11-01
[PDF-1.87 MB]
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Abstract:Formulating the expected costs and benefits of an automated highway system requires the use of a conceptual framework for determining types of costs and benefits, measures of cost and benefits, and an understanding of the uncertainty involved in the range of estimates derived as a result of the framework. We have developed an analytical matrix that accomplishes this task. We have also evaluated the major factors affecting the incremental costs of an AHS system, from initial research, to early deployment, through ongoing operations. Similarly, we have identified the most important benefit measures to be travel time savings, from the point of view of AHS road users themselves; accident avoidance and congestion avoidance benefits, from the societal point of view; and traffic throughput from the road operator's point of view. In addition, there are significant construction and ongoing operations and maintenance benefits to be gained as a result of secondary or "multiplier" effects of spending resources in deploying such systems regionally, or even nationally. Other benefits, such as productivity improvements at the workplace, will have to be an area for further research. It is conceivable that these may be significant, but quantifying such benefits, when little is known or predicted about the share of (say) commuting trips that are taken on AHS roadways the produce travel time savings or other user comforts/conveniences, is difficult if at all possible.
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Content Notes:Task P
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