Evaluation of Safety Treatments for Roadside Culverts

Released on by Francisco Daniel B. Albuquerque
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  • Evaluation of Safety Treatments for Roadside Culverts Book Detail

  • Author : Francisco Daniel B. Albuquerque
  • Release Date : 2009
  • Publisher :
  • Genre : Roads
  • Pages : 218
  • ISBN 13 :
  • File Size : 38,38 MB
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Evaluation of Safety Treatments for Roadside Culverts by Francisco Daniel B. Albuquerque PDF Summary

Book Description: Roadside cross-drainage culverts have been found to impact vehicle accident injury levels. Designers have commonly used three safety treatments to protect errant drivers from culvert accidents. These treatments have included: culvert extension, guardrail installation and grating. In order to define which safety treatment is the most appropriate, benefit-cost analysis has used accident cost reduction to estimate societal gains earned by using any safety treatment. The purpose of this study was to estimate accident costs for a wide range of roadway and roadside characteristics so that designers can calculate benefit/cost ratios for culvert safety treatment options under any particular scenario. This study began with conducting a parametric study in order to find variables which have significant impact on accident cost changes. The study proceeded with highway scenario modeling which included scenarios with different values for combinations of roadway and roadside variables. These variables were chosen based upon findings from the parametric study and their values were assigned based upon highway classification. This study shows that the use of different culvert safety treatments should be flexible to roadway and roadside characteristics. It also shows that culvert extension and grating were the safety treatments found to produce the lowest accident costs for all highway scenarios modeled. Therefore, it is believed that the expanded adoption of culvert extension and culvert grates can improve overall highway safety.

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Gravel Roads

Gravel Roads

File Size : 87,87 MB
Total View : 7580 Views
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The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies t