Laserfiche WebLink
LOS AfB SCENARIO MODEL SUMMARY TABLE <br /> <br /> Travel Time Delay Time Average Average Total Travel Distance <br /> Number <br /> of Cars per Car in per Car in Speed Traffic Hours of Time Traveled <br /> Seconds Seconds (MPH) Backup Delay (Hours) (Miles) <br />Baseline 30 MPH 900 32 0 30 None 0 8 244 <br />LOS A <br /> 900 40 8 25 18 feet 2 10 244 <br />(30% of Capacity) <br />L O S .4/B <br />(54% o~ Ca?aci~y) 1,800 44 12 22 62feet 6 22 488 <br /> <br />+100% +10% +50% -12% +200% +120% +100% <br /> <br /> Gallons of Fuel Fuel Economy CO Emissions Nox Emissions VOC Emissions <br /> Consumed ~IPG) (Pounds) IPounds) (Pounds) <br />Baseline 10 24.3 1.54 0.31 0.35 <br />LOS A <br /> 14 17.5 2.14 0.42 0.51 <br />(30% of Capacity) <br />LOS A/B <br /> 32 15.4 4.89 0.95 1.15 <br />(54% o~ c,,eaci~y) <br /> <br />+129% -12% +129% +126% +126% <br /> <br />LOS B - 2~500 Drivers Scenario Driving Conditions (About 73 Percent of Capacity) <br /> <br />The model was rerun to show what happens if the traffic volume increases by another <br />700 vehicles per hour, to a total of 2,500 vehicles per hour. This represents the top end of <br />LOS B conditions with 20 seconds of delay per vehicle. Half of the traffic was placed on the <br />north/south street and half on the east/west street. The intersection used in these examples has a <br />capacity of about 3,540 vehicles per hour, so these LOS B conditions represent traffic flow at <br />about 73 percent of the intersection's capacity. <br /> <br />The following exhibit is a screen capture from the City's traffic simulation model. It shows the <br />intersection as a two-phase traffic signal with the light just about to turn green for north/south <br />traffic. Note that the queue at the red light has grown considerably. <br /> <br /> <br />