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September 11, 2021 <br />Page 24 <br />IV. Congestion Analysis <br />Traffic congestion is a condition that exists on roadway facilities whenever traffic flows at slower <br />than intended speeds. This condition is caused by bottlenecks, which are locations where travel <br />demand approaches or exceeds roadway capacity. Traffic congestion is a concern because it causes <br />delay to travelers, increases safety risks, reduces highway throughput, and has negative <br />environmental impacts from wasted fuel and increased emissions. <br />Congestion analysis seeks to understand congestion's extent (where does it occur); intensity (how <br />bad is it); duration @ow long does it last); and causes. The congestion analysis performed as part of <br />the Northwest Metro Mississippi River Crossing Feasibility Analysis shows that travelers regularly <br />experience congestion in the study area. The primary causes of regional congestion are high traffic <br />volumes and signal interference at key locations. <br />Figure 11: Hours of Congestion on a Typical Workday <br />Hours of Congestion <br />on a Typical Workday <br />I-94fHwy 610 Up to 2 sours <br />Hwy 10 <br />Hwy 169/Hwy 47 Up to 3.5 hour <br />Up to 2.5 hours <br />Hwy 101 Up to 3 hours <br />Northwest Metro Mississippi River Crossing Feasibility Analysis <br />