Abstract
AbstractThere is a significant need to improve the highway safety during roadway planning, design and operations in developing countries like India. To receive appropriate consideration, safety needs to be dealt objectively within the transportation planning and highway design processes. Lack of available tools is a deterrent to quantify safety of a transportation facility during the planning or highway design process. The objective of this paper is to develop safety performance functions considering various elements involved in the planning, design and operation of a section on four-lane National Highway (NH)-58 located in the state of Uttarakhand, India. The mixed traffic on Indian multilane highways comes with a lot of variability within, ranging from different vehicle types to different driver characteristics. This could result in variability in the effect of explanatory variables on crashes across locations. Hence, explanatory variables for highway segment safety analysis considered were geometric ch...
Highlights
Over the years due to growth in Indian economy, there has been an unprecedented increase in road transportation and vehicular traffic load on the existing highway network in India, which has led to unsafe conditions on our highways
The results indicate that based on the estimates of covariate effects, the Curvature Change Rate (CCR), median opening, sport utility vehicles, light commercial vehicles, buses and two-wheelers are the most positively significant variables in explaining crash risk
Models were developed for three-year crash records on 143.5 km of a divided four-lane highway (NH-58)
Summary
Over the years due to growth in Indian economy, there has been an unprecedented increase in road transportation and vehicular traffic load on the existing highway network in India, which has led to unsafe conditions on our highways. Nearly 494,893 people get injured in road crashes that lead to lifelong misery for the victims and family (Road Accidents in India, 2014). Significant effort and investment have been made to enhance highway safety. In the backdrop of resource constraints, the allocation of resources for safety improvement projects must yield maximum possible return on investment. Identifying highway locations that have the potential for crash reduction with the implementation of effective safety counter measures is an important step in achieving the maximum return on safety investment
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