This synthesis report will be of interest to officials and staff of municipal, regional, and statewide transportation agencies responsible for roadway design and traffic control. It will be of special interest to those concerned with intersections and driveways on divided highways where larger vehicles encounter narrow medians. It will also be of interest to other professionals who interact with these agencies to mitigate such problems. This report presents state-of-the-practice information about current median design policies and practices, describes the traffic operational and safety problems encountered in designing for larger vehicles at divided highway intersections, and identifies alternative improvement techniques that can be used in new construction or reconstruction projects to avoid introducing traffic operational and safety problems. This TRB report focuses on 10 alternative cross sections widely used on arterial highways in urban, suburban, and rural environment.
Report
However, in the case of 2.5 and 4.5 m width of medians vehicles shifts away from the median. ... Due to the larger height of the wheel, the median height (i.e. up to 450 mm), does not have any significant impact on trucks, however, ...
Machine productivity with various size trees, in m3 per productive machine hour (m3/PMH) Koehring Shortwood ... of vehicle with large single wheel higher than if equipped with tandem bogie (Bredberg and Wästerlund, 1983) Effect of slope ...
Nearby Features The proximity of a median opening to the following nearby features influences the operational and safety performance of the median opening: • Driveways, • Adjacent median openings, • Signalized intersections, ...
Nicholas J. Garber, Lester A. Hoel. 5. Pace which is the range of speed—usually taken at 10-mi/h intervals—that has the greatest number of observations. For example, if a set of speed data includes speeds between 30 and 60 mi/h, ...