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<br /> <br />10 | Page <br /> <br />period (7:00 – 9:00 AM). The number of vehicles waiting to turn left was counted at five minute <br />intervals and divided by 12 to estimate their wait times. <br />Outcome: Table 9 summarizes the results. At both locations there was a 15-18% reduction in <br />the wait time for vehicles to make a left turn from the side streets during the morning peak <br />hour. At Lonesome Pine, the typical wait times were less than a minute and the overall <br />reduction was small as an absolute number. At Highland, the wait times were estimated at 4 <br />minutes before the pilot and they went down to 3.4 minutes during the pilot. <br />Table 9 Average Delay for Vehicles Making a Left Turn, AM Peak Period (in minutes) <br /> Location <br />Pre-Pilot <br />(min) <br />During Pilot <br />(min) <br />Absolute <br />Change Percent Change <br />Lonesome Pine 0.9 <br />(n=11) <br />0.8 <br />(n=9) -0.2 -18% <br />Highland Avenue 4.0 <br />(n=48) <br />3.4 <br />(n=41) -0.6 -15% <br />Source: Quality Traffic Data (May 27, 2015 and October 21 and 22, 2015). <br />n= number of vehicles trying to turn left, counted at five minute intervals <br />Objective 6: Make it safer for all roadway users by reducing vehicle speeds <br />Why: Reducing vehicle speeds provides several safety benefits. For example, reduced vehicle <br />speeds provide more reaction time for drivers to avoid potential collisions. Furthermore, <br />reducing speeds can also substantially reduce the severity of collisions that may happen. <br />Measurement: Traffic speed data was collected by a traffic data consultant in May 2015 before <br />the pilot began, and then again in October 2015 when the pilot was underway using standard <br />tube counters over three consecutive, midweek days. The collected data was analyzed by the <br />traffic consultant to identify the following: <br />· 85th percentile speed, which is defined as the speed 85 percent of drivers are moving at <br />or below, <br />· 50th percentile speed is the median speed – 50 percent of drivers are driving at or below <br />that speed, and 50 , which percent of drivers are driving above that speed, <br />· Percent of vehicles traveling above the posted speed limit, and <br />· Percent of vehicles traveling 10 mph or more over the posted speed limit. <br /> <br />8.A. - Page 21