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Wayne Wentz <br /> April 10, 1996 <br /> Page 3 <br /> Tabte 1 <br /> LEVEL OF SEItVICE (LOS) CRITERIA FOR <br /> SIGNALIZED, UNSIGNALIZED & MULTI-WAY STOP INTERSECTIONS <br /> Sienalized Unsienalized/ <br /> Level of Expected Stopped Delay Multi-Wav Stoa <br /> Service � Dela Sec.Nehicle Sto ed Dela -Sec.Nehicle <br /> A Little/No Delay < = 5.0 < 5.0 <br /> B Short Delays 5.1 to 15.0 5.1 - 10.0 <br /> C Average Delays 15.1 to 25.0 10.1 - 20.0 <br /> D Long Delays 25.1 to 40.0 20.1 - 30.0 <br /> E Very Long Delays 40.1 to 60.0 30.1 - 45.0 <br /> F + > 60.0 > 45.0 <br /> '" W'hen demand volume exceeds the capacity of the lane, extreme delays will be encountered <br /> witti queuin� which may cause severe congestion affecting other traffic movements in the <br /> intersection. <br /> Source: 1994 i3ighway Capacity Manual and Transportation Research Buard Circulaz 373. <br /> 1 LOS A: frce-flow traffic condidons, wi[h minimal dday to stopped velucics (no vehicle is delayed longer <br /> thaa one cycle at signalized intersection). <br /> LOS B: generally stable traffic flow conditions. <br /> LOS C: occasional back-ups may develop,but delay to vehicles is short term and sdll tolerablo. <br /> LOS D: during short periods of the peak hour, delays to approaching vehicles may be substandal but aze <br /> tolerable during times of less demand (i.e, vchicles delayed one cycle or less at signal). <br /> LOS E: intersections operate st or near capacity, with long queues developing on all approaches and long <br /> delays. <br /> LOS F:jammed conditions on all approaches with excessively long delays and vehicles utiable :o move at <br /> times. <br /> y/a-� <br /> o � �oa <br /> RAFFIC <br /> Oa�3Md4�a t��? <br />