The main purpose of the research was to check the accuracy of the weaving procedures of the 1985 Highway Capacity Manual, of the nomograph which was prepared by Jack Leisch, and of the 1965 Highway Capacity Manual's Level of Service D method. Weaving data was obtained with video equipment for eleven locations. The locations were at the Oakland area, the Los Angeles area and the San Diego area. There were seventeen data sets. Nine of the data sets were for generally non-peak periods. Eight of the data sets were for generally peak periods. All of the ramps were diamond-type ramps, including a ramp to a frontage road with a curve adequate for only slow speeds, or slip ramps. All of the ramps were one-lane at the merge or diverge areas. There were auxiliary lanes between all of the on-ramps and off-ramps.
Weaving Areas Near One-Lane Ramps
1990
29 pages
Report
No indication
English
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