Abstract: There is some lack of uniformity in determining earthworks overhaul distance. Often, it is calculated as the distance between the centers of gravity of the cut and the fill, less the freehaul distance. This paper describes ...

Abstract: To maximize the potential for success of an urban high-occupancy vehicle (HOV) lane, there are several design intricacies that require special attention, particularly at critical intersections. This paper is based on ...

Abstract: This study has three main objectives: (1) to develop new, theory-based, queuing relationships for the quality of flow on two-lane rural highways; (2) to estimate the relationships both from the empirical data that were ...

Abstract: Freeway interchanges accommodate large traffic volumes within a constrained area. When their design is complex and includes unexpected features, it may increase drivers’ workloads and lead to driving errors, thus increasing ...

Abstract: The goal of the research was to study consistency of design on two-lane rural highways and to ascertain the existence of a relationship between consistency and safety level. The immediate objectives were to develop new, ...

Abstract: This paper presents a study of two important roundabout performance issues: (1) the impact of the waiting time of drivers on the approach leg, on the critical gap they accept before entering a roundabout and (2) the entry ...

Abstract: This study analyzed properties and characteristics of pedestrian flow on sidewalks. Data were collected in the central business district of Haifa, Israel, with the aid of a videotape recorder and a digital clock. Walking ...

Abstract: The purpose of this study was to investigate flow characteristics on acceleration lanes. Four acceleration lanes in Israel, which were videotaped, provided the data. Three separate analyses were conducted: the locational ...

Abstract: A study was conducted: (1) To collect accident, environment, geometric and traffic flow data at rural three-leg wye intersections in West Virginia; (2) to identify any patterns linking accident data and intersection ...