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Spot Speed Study Lab

Spot Speed Study Lab - 1 This experiment was conducted in...

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1. This experiment was conducted in order to collect and analyze the traffic pattern west- bound along Woody Hayes Dr. from 2:00 PM to 3:00 PM. 2. The experiment was conducted using one person as a flagger, another person using a stopwatch for the timer, another person as the safety engineer, and the last person recording the speed range that each car timed fell into. The flagger would make some kind indication, like dropping their hand, when a car would pass the entry point of the 176 feet long speed trap. The timer would start the stop watch at this point and stop it when the same car exited the speed trap. The timer would relay to the recorder what the time recorded was and then the recorder would place mark in the box that corresponded to the appropriate time. The data sheet provided also had the speed equivalent for each time range. And this was repeated until the end of the hour. During this time, the safety engineer would make sure that each person in the group was acting in a safe and appropriate manner. 3. The experiment was conducted on Thursday, October 4, 2007 from 2:00PM to 3:00PM on Woody Hayes Dr., on the overpass over Olentangy River Rd. The temperature was around 85°F and sunny. The experiment was conducted by Andrew Grunenwald, Jordan Powell, Adam Collier, and Jon Krebs, with each of them rotating between each of the jobs. 4. Table 1: Spot Speed Study Data Speed Group Middle Speed (mph) Number of Vehicles Vehicles in Group (%) Cumulative Vehicles (%) Lower Limit (mph) Upper Limit (mph)
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16 18 17 1 0.8% 0.8% 18 20 19 1 0.8% 1.7% 20 22 21 0 0.0% 1.6% 22 24 23 6 2.5% 4.2% 24 26 25 6 5.9% 10.1% 26 28 27 11 8.4% 18.5% 28
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Spot Speed Study Lab - 1 This experiment was conducted in...

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