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In the LOS C peak-hour scenario, the 2,860 drivers take an average of 59 seconds to drive the <br />approaches to the intersection, experiencing an average of 27 seconds of delay per vehicle. <br /> · The average driving speed is reduced to 17 MPH. <br /> · The average driving time increases to 59 seconds. <br /> · The average delay is 27 seconds per vehicle. <br /> · The average traffic backup is eleven cars long (265 feet). <br /> · The average fuel economy drops to 12.9 miles per gallon. <br /> · The vehicles generate 13.2 pounds of automotive emissions for a base rate of 6.0 tons per <br /> year per 10,000 peak-hour vehicles. <br /> <br />LOS C SCENARIO MODEL SUMMARY TABLE <br /> <br /> Travel Time Delay Time I 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 ~VIPH) 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 />LOS A/B <br />(54% of Capacity) 1,800 44 12 22 62 feet 6 22 488 <br />LOS B <br />(73% of Capacity) 2,500 52 20 19 170 feet 14 36 678 <br />LOS C <br />(8296 o~ Calmcity~ 2,860 59 27 17 265feet 21 47 776 <br /> <br />+14% +14% +37% -11% +50% +31 +14 <br /> <br /> Gallons of Fuel Fuel Economy CO Emissions Nox Emissions VOC Emissions <br /> Consumed ~MPG) (Pounds) (Pounds) (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% of Capacity) <br />LOS B <br /> 49 14.0 7.50 1.46 1.74 <br />(73% of Capacity) <br />LOS C <br /> 60 12.9 9.24 1.81 2.14 <br />(S2% ol~ Ca~ac~ <br /> <br />+22% -8% +23% +24% +23% <br /> <br />LOS D - 3~200 Drivers Scenario (About 91 Percent of CapaciW) <br /> <br />Up to about 75 pement of capacity, the increase in delay at intersections parallels the increase in <br />traffic. As an intersection begins to reach LOS D, however, drivers experience significant <br />increases in delay and frustration resulting from relatively small increases in traffic. In this <br />scenario, traffic only increases another 340 vehicles per hour, or about 12 percent. However, <br />drivers experience a 43 percent increase in delay. This scenario represents "good" LOS D <br />conditions with 39 seconds of delay per vehicle while LOS D includes delays up to 55 seconds <br />of average delay. The intersection used in these examples has a capacity of about 3,540 vehicles <br /> <br />11 <br /> <br /> <br />