Citation

Fisher RL. Highw. Res. Board bull. 1951; 35: 71-79.

Copyright

(Copyright © 1951, National Research Council (U.S.A.), Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

Medians are described on route 17 and route 28 in northern New Jersey. It is believed they represent what may be considered the minimum in median design. The dualization of route 17 consisted of the installation of a 2-ft. Wide low curbed island and two 24-ft. Pavements. This narrow median appears to have the following advantages over the conventional higher type: (1) openings for driveways, left turns and u turns are not necessary and the continuous median can be used between street intersections, (2) it gives a positive separation of opposite direction traffic but can be crossed in an emergency, (3) it facilitates the movement of police cars, fire apparatus, etc., (4) in case of fire or accident, and section of one roadway can be closed off and two-way traffic maintained on the other roadway, and (5) this type of curb seems to collect less debris and snow than the conventional higher type, dualization of route 28 consisted of resurfacing and widening the existing road to 23 feet, constructing 23 feet of new pavement, a 2 foot 6 inch curbed median and outer shoulders ten feet wide, the curb was cast in place with expansion joints every 20 feet. The interior consists of gray concrete with a minimum thickness of 2 inches of white concrete on the exposed surfaces. The top of the curb is scored. Installation costs were much cheaper than a wide median. The barrier curb has served its function of preventing crossing of the narrow median.