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CMP Part 4A. Transportation Plan <br /> Roadway Capacity <br /> A roadway's capacity indicates how many vehicles may use a roadway before it experiences <br /> congestion. Capacity is largely dependent upon <br /> x.-" the number of lanes. Table 4A-5 lists planning- <br /> Roadway Type Daily Capacity level thresholds that indicate a roadway's <br /> Planning Level(ADT) capacity. Additional variation (more or less <br /> Two-lane undivided 10,000 capacity) on an individual segment is influenced <br /> urban by a number of factors including: amount of <br /> Two-lane undivided 15,000 access, type of access, peak hour percent of <br /> rural traffic, directional split of traffic, truck percent, <br /> opportunities to pass, and amount of turning <br /> Three lane urban 17,000 traffic, the availability of dedicated turn lanes, <br /> (two-lane divided <br /> with turn lanes) parking availability, intersection spacing, signal <br /> timing and a variety of other factors. <br /> Roadway Capacity—Traffic Forecasting <br /> The Metropolitan Council uses Transportation Analysis Zones (TAZs) for traffic <br /> forecasting. Each forecast study area, in this case the City of Orono, is divided into a series <br /> of TAZs (see Map 4A-3). The TAZ data for Orono can be found at Appendix 4A-A. The <br /> modeling shows the majority to the projected growth in the city within the TAZs that <br /> correspond with City Municipal Utility Service Areas (MUSA)which further corresponds <br /> to the cities areas for higher existing and planned densities. <br /> Current and Future Regional/Hennepin County Capacity <br /> At the planning level, capacity problems are identified by comparing the existing number <br /> of lanes with current traffic volumes. The table below illustrates the existing number of <br /> lanes on state and county arterial roadways within the City. To identify the need for <br /> potential future capacity improvements, Hennepin County compared 2030 forecasts to <br /> planning-level roadway capacities. Nearly all State and County roadways within the City <br /> have adequate capacity to handle forecast 2040 traffic volumes with little to minimal <br /> congestion. (See Map 4A-4). Based on traffic counts in 2015 the only Hennepin County <br /> road currently undersized based on capacity is Shoreline Drive(CSAH 15). The 2015 ADT <br /> for CSAH 15 was 17,600. Those roads projected to exceed their design capacity by 2030 <br /> are highlighted red below. <br /> City of Orono Community Management Plan 2020-2040 Part 4A, Page 8 <br />