Laserfiche WebLink
4/23/2009 <br />Intersection Capacity/LOS <br />Descriptions <br />Level of Service (LOS) Descriptions <br />• LOS A. Free Flow of traffic, users are minimally affected by the <br />presence of others; an excellent general level of comfort and <br />convenience to the users <br />• LOS B: Reasonably free flow, operating speeds beginning to be <br />restricted somewhat by traffic conditions. Drivers still have reasonable <br />freedom to select their speed <br />• LOS C: speeds remain near free flow, but freedom to maneuver is <br />noticeably restricted <br />• LOS D highdensity stable flow however speed begins to decline with <br />increasing volume. Freedom to maneuver is further reduced and the <br />traffic stream has little space to absorb disruptions <br />• LOS E: Operating conditions at or near capacity; freedom to <br />maneuver is extremely limited and driver and pedestrian <br />frustration is generally high <br />• LOS F: Forced or breakdown flow resulting in unstable flow; <br />Both speeds and volumes can drop to zero <br />Transportation Planning <br />o Traffic Demand <br />■ Land use — Location and intensity of the activity <br />• Socioeconomic conditions — magnitude and extent of <br />population activity <br />• Availability of alternative transportation modes <br />• Traffic Studies <br />• Existing Traffic <br />• Future background traffic <br />• Project traffic <br />• Total future traffic <br />Traffic Volumes/Determine <br />Project Impact <br />o New development generates more traffic and <br />consequently may alter prevailing traffic patterns. <br />o Traffic volumes fluctuate daily and seasonally <br />depending on the area served by the road. <br />o Major corridors serving commercial and business <br />areas have peak volumes in the morning and late <br />afternoon. <br />o Retail areas have peak volumes on weekends and <br />evenings, especially during holidays <br />a Marina Park peak volume on weekends late <br />9 <br />