Congestion Monitoring
Areas of Concern: Volume to Capacity Ratio
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Congestion Monitoring |
Each facility within a corridor is further divided into a series of segments. A segment is the portion of roadway between major intersections or interchanges. For example, between 78th Street and 99th Street represents a segment on each facility in the I-5 Central Corridor. Using segmental data, areas of concern were identified.
Volume to capacity ratio areas of concern are segments within individual corridors that have a volume to capacity ratio greater than 0.9. This limitation on road capacity leads to congestion. To the most part, solutions to these concerns have been identified in local plans. However, many of these solutions are expensive and are not planned within the next few years.
The PM period shows congestion on portions of I-5, I-205, SR-14, SR-500, SR-502, SR-503, Fourth Plain, Hazel Dell Avenue, Andresen/72nd Avenue, 112th Avenue, 138th Avenue, 164th Avenue, and 18th Street.
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This report was prepared by:
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