Road safety index is an important indicator that has been recently introduced as a useful tool to measure the quality of life in many countries and cities. Road safety index is a complex index and it has at least three main components, including road user behavior, vehicle safety, and road infrastructure effects. Many researchers have selected studying road performance from road safety index pe...

Road accidents are a human tragedy. They involve high human suffering and monetary costs in terms of untimely death, injuries and social problems. India had earned the dubious distinction of having more number of fatalities due to road accidents in the world. Road safety is emerging as a major social concern around the world especially in India because of infrastructure project works. A case st...

The purpose of this research report is to establish guidelines for identifying highway rehabilitation projects warranting acceleration within Texas. Reduction in the total number of days allocated for project completion is recommended if savings in user costs are greater than the additional costs of accelerating the project. Throughout this report, the short-term impacts to road users and the e...

The Life-Quality Index (LQI) is a tool for the assessment of risk reduction initiatives that would enhance safety and quality of life. The paper evaluates the impact of road maintenance programs on the quality of life in the Netherlands using the LQI method. The LQI is calibrated using the specific economic and demographic data for the Netherlands. A preliminary cost-benefit analysis shows that...

Over the past ten years the significance of costs burdened by parties not engaged in the contractual agreement (social costs) is gaining growing acknowledgment by city planners, municipal administrators and the engineering community. For many years the trenchless technology industry promoted the consideration of social costs in the project planning process. A key obstacle for such consideration...

Aiming at the dense urban road network vulnerability without structural negative consequences, this paper proposes a novel non-structural road network vulnerability analysis framework. Three aspects of the framework are mainly described: (i) the rationality of non-structural road network vulnerability, (ii) the metrics for negative consequences accounting for variant road conditions, and (iii) ...