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Existing Roadway Capacity and <br />Safety <br />Roadway capacity and roadway safety are two key indicators of how <br />well the roadway system is meeting the City's transportation needs. <br />The sections below provide information to better understand capacity <br />and safety issues within the City of Hugo. <br />Existing Roadway Capacity <br />A roadway's capacity indicates how many vehicles may use a roadway <br />before it experiences congestion. Capacity is largely dependent upon <br />the number of lanes. Table 8-4 below lists planning -level thresholds <br />that indicate a roadway's capacity. Additional variation (more or less <br />capacity) on an individual segment is influenced by a number of <br />factors including: amount of access, type of access, peak hour percent <br />of traffic, directional split of traffic, truck percent, opportunities to pass, <br />and amount of turning traffic, the availability of dedicated turn lanes, <br />parking availability, intersection spacing, signal timing and a variety of <br />other factors. <br />DRAFT Dec14-17 <br />for review only <br />Table 8-4 Plannin <br />Two-lane undivided 10,000 12,000 <br />Arterials Two-lane divided or three -lane undivided 15,000 <br />Four -lane undivided 18,000 <br />Four -lane divided or five -lane undivided 28,000 <br />Four -lane freeway 60,000 <br />Freeways Six -lane freeway <br />Eight -lane freeway or higher <br />17,000 <br />22,000 <br />32,000 <br />80,000 <br />90,000 120,000 <br />Calculated on a segment by segment basis <br />Source: FHWA Highway Capacity Manual and WSB Experience from Previous Projects <br />-!! ;GO 2040 COMPREHENSIVE PLAN UPDATE DRAFT Dec14-17 TRANSPORTATION 173 <br />for review only <br />