Published in 1980
This memorandum examines the data collected during the Research Council's 1976 study of the transportation of 12- and 14-foot wide manufactured housing units to determine whether the data were adequate for analyzing the effects of wide load speeds on other traffic and, if possible, to determine what these effects were. The major conclusion from the examination of the data is that the wide load vehicles traveling above 45 mph on interstate and four-lane divided highways had lower accident potentials than did those traveling at slower speeds. Accordingly, it is recommended that the speed limit on interstate and four-lane divided highways for overwidth manufactured housing units be changed to 55 mph, the speed which would put these vehicles in reasonable conformity with other traffic.
Last updated: January 22, 2024