USE OF REMOTE SENSING TO IDENTIFY ACCESS ELEMENTS FOR SAFETY ANALYSIS Sponsored by National Consortium on Remote Sensing in Transportation for Infrastructure


The opinions, findings, and conclusions expressed in this publication are those of the authors and not necessarily those of the sponsor. CTRE's mission is to develop and implement innovative methods, materials, and technologies for improving transportation efficiency, safety, and reliability while improving the learning environment of students, faculty, and staff in transportation-related fields. Crashes and increasing congestion resulting in delay, injury, loss of life and property damage continue to characterize the nation's highway system. These losses amount to hundreds of billions of dollars, tens of thousands of fatalities and over one million injuries annually (NHTSA). The transportation system where these losses play out is immensely complex, and is comprised of diverse infrastructure, human actors, and institutions. One increasingly popular approach to partially addressing the problems listed above is access management. Can we identify a significant treatment for the problem? When access via driveways and minor public roads from arterial and collector roadways to land development is not effectively managed, the result is often increased accident rates, increased congestion, and increased delays for motorists. Research in Iowa and elsewhere has shown access management to be highly effective in increasing highway safety and improving traffic operations. Recent research in Iowa shows that access management projects led to an average 40 percent reduction in accident rates on case study routes in urban areas; these figures are consistent with previous research results in other states where reductions ranged from 18 to an impressive 77 percent (NCHRP 420). Access management projects are considerably less costly than building new facilities and can provide considerable increases in traffic capacity. The following graphic depicts typical crash rate reductions after application of access management strategies: 2 What are some of the barriers to effective and widespread implementation of access management strategies? Widespread adoption of more aggressive access management often faces resistance from the local business community, especially if benefits are not perceived to directly enhance the local economy, or if treatments are developed with inadequate public participation. Other barriers to implementation include: limited ROW in built up areas, lack of ability to predict future problem areas, difficulty in applying models relating access control and safety due to cost and availability of data, and lack of a systematic approach (it is not always well know where in a state, improvements to access management would pay off best) Can Remote Sensing help address some of the barriers to improved access management? …

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@inproceedings{Souleyrette2001USEOR, title={USE OF REMOTE SENSING TO IDENTIFY ACCESS ELEMENTS FOR SAFETY ANALYSIS Sponsored by National Consortium on Remote Sensing in Transportation for Infrastructure}, author={Reginald R. Souleyrette and Srinivasa Rao Veeramallu and Shauna L. Hallmark}, year={2001} }