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City of Arden Hills – 2040 Comprehensive Plan <br /> <br /> <br />Approved: XXXXX <br />B-6 <br />Table B.1 – Planning-Level Roadway Capacity <br />Facility Type <br />Daily Two-Way Volume <br />Lower <br />Threshold <br />Higher <br />Threshold <br />Arterials <br /> <br /> <br /> <br />Two-lane undivided 10,000 12,000 <br />Two-lane divided or three-lane <br />undivided 15,000 17,000 <br />Four-lane undivided 18,000 22,000 <br />Four-lane divided or five-lane undivided 28,000 32,000 <br />Freeways Four-lane freeway 60,000 80,000 <br />Six-lane freeway 90,000 120,000 <br />Eight-lane freeway or higher Calculated on a segment <br />by segment basis <br /> <br /> <br />2.2 LEVEL OF SERVICE <br /> <br />Roadway Level of Service (LOS) is used to assign a value to the level of congestion <br />and efficiency of the roadway. The LOS is determined by the ratio of the actual <br />roadway volume to the established capacity. In general, the higher the volume, the <br />lower the LOS. There are six LOS, depending on the extent of congestion and service <br />on the roadway. The LOS are defined in Table B.2 – Roadway Level of Service as <br />follows: <br /> <br />Table B.2 – Roadway Level of Service <br /> <br />Level of Service Volume to Capacity <br />Ratio (v/c) <br />A 0.00 to 0.35 <br />B 0.35 to 0.49 <br />C 0.50 to 0.74 <br />D 0.75 to 0.89 <br />E 0.90 to 0.99 <br />F > 1.00 <br />Source: Based on Highway Capacity Manual <br /> <br />Generally, the City of Arden Hills should consider capacity improvements on roadways <br />with a LOS D or worse and volume-to-capacity ratios over 0.75 during the peak hours. <br /> <br />Dr <br />a <br />f <br />t <br /> <br />11 <br />/ <br />2 <br />0 <br />/ <br />2 <br />0 <br />1 <br />7