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Sub-problem 1d - Page 4 of 4

ID# C403D04

Sub-problem 3d: Collector/Distributor Road

So what lessons have we learned from the analysis? First, we encountered another situation where the highway geometrics are non-standard from the perspective of the HCM; so we need to determine how the situation should be analyzed. Second, a weaving analysis is possible and appropriate between the loop ramps, provided more-than-normal care is taken in examining and interpreting the results of the analysis. Third, the computed number of lanes required for an unconstrained weave needs to be compared with the number of lanes available, realizing that the non-weaving movements are effectively zero. This means that if the weaving movements are acceptable, the entire weaving section is also acceptable.

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