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� Silver Lake Center <br /> � GTC #OG-189 <br /> TABLE 1 <br /> � INTERSECTION LEVEL OF SERVICE (LOS) CRITERIA <br /> � Control Delay <br /> Level of Expected Seconds er Vehicle <br /> Service � Delay Unsignalized Signalized <br /> IIntersec[ions Intersections <br /> A Little/No Delay 510 <_10 <br /> � B Short Delays >10 and _<15 >10 and<_20 <br /> � C Average Delays >15 and <_25 >20 and_<35 <br /> D Long Delays >25 and <_35 >35 and <_55 <br /> � E Very Long Delays >35 and 550 >55 and_<80 <br /> F• * >50 >80 � <br /> I <br /> * When demand volume exceeds the capacity of the lane, extreme delays will be encountered <br /> + with queuing which may cause severe congestion affecting other traffic movements in the <br /> r intersection. <br /> � Source: Highway Capacity Manua12000. <br /> � LOS A: free-flow traffic conditions, with minimal delay to stopped vehicles (no vehicle is delayed longer <br /> Ithan ane cycle at signalized inrersection). <br /> LOS B: generally swble haffic t7ow condirions. <br /> ILOS C: occasianal back-ups may develop,but delay to vehicles is short term and still tolerable. <br /> � LOS D: during short periods of die peak hour, delays to approaching vehicles may be substantial but aze <br /> tolerable dunng times of less demand(i.e.vehicles delayed one cycle or less at signal). <br /> LOS E: intersections operate at or near capaciry, with long queues developing on all approaches and long <br /> � delays. <br /> LOS F: jammed conditions on all approaches with excessive!y long delays and vehicles unable to move at <br /> � �lI11�5. <br /> I <br /> I <br /> I 0 � �Oa <br /> RAFFIC <br /> � oa��d�aa4� <br />