Travel time estimation in urban arterials is challenging compared to freeways and multilane highways. This becomes more complex under Indian conditions due to the additional issues related to heterogeneity, lack of lane discipline, and difficulties in data availability. The fact that most of the urban arterials in India do not employ automatic detectors demands the need for an effective, yet le...

The cooling performance of the stack radiator of a fuel cell electric vehicle was evaluated under various actual road driving conditions, such as highway and uphill travel. The thermal stability was then optimized, thereby ensuring stable operation of the stack thermal management system. The coolant inlet temperature of the radiator in the highway mode was lower than that associated with the up...

This report provides interim results on the design of interfaces between automated highways and conventional street systems. The purpose here is to identify the strategic issues in interface design, and to provide preliminary analysis on just one of these issues (separation between highway entrance and exits). Future research will explore a full set of strategic issues in greater depth. The cen...

The report attempts to deliver a proof of concept that optimal planning and management strategies can be formulated through applying robust optimization methodology such that limited resources could be allocated more rationally, and reliability of a highway network improved more efficiently. The report focuses on two applications: the network design problem under demand uncertainty, and fleet a...

Mobility, safety, and environmental sustainability are priorities in the geometric design of roundabouts. This paper presents a multi-objective optimization model that determines elements single-lane roundabouts using all three objectives. The user can specify weights for objectives, or determine optimal weights. Mobility is defined terms roundabout delay modeled United Kingdom empirical model....

As the traffic infrastructure for collecting vehicle tolls, capacity of toll plaza determines service level entire highway. The a is highly correlated with its operating costs, especially in peak periods. In this paper, it assumed that competitive transportation system, residential area and workplace are connected by highway which forms bottleneck, parallel to mass transit line; commuters can c...

A cross-sectional time series database of U.S. data on fatalities and injuries is analysed using a fixed effects negative binomial regression. Data from 50 states over 14 years is used to examine the effect of various highway improvements on both fatalities and injuries. These include the total lane miles of capacity, total average number of lanes by functional road category (interstates, arter...

Highway systems play a key role in providing mobility to society, especially during emergency situations, including earthquakes. Bridges highway are susceptible damage from earthquakes, causing traffic capacity loss leading serious impact on surrounding areas. To better prepare for such scenarios, it is important estimate and disruptions For this purpose, traffic-capacity-analysisbased methodol...