Assume you are an observer standing at a point along a three-lane roadway. All vehicles in lane 1 are traveling at 30 mi/h, all vehicles in lane 2 are traveling at 45 mi/h, and all vehicles in lane 3 are traveling at 60 mi/h. There is also a constant spacing of 0.5 mile between vehicles. If you collect spot speed data for all vehicles as they cross your observation point, for 30 minutes, what will be the time-mean speed and space mean speed for this traffic stream

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Q: for you, will you hit the lead vehicle? If so at what speed will you be going?

A: V = 70 mph L = 20 ft t = 1.5 secf=0.28one car length spacing for each 10 mphNeed to find

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A: First of all we need to  arrange number in ascending order

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A: Speed: v= 60 kph No of vehicle passes: n = 5473 To calculate: spacing of the vehicle. (S)

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Q: ANSWER 22 AND 23

A: To find space mean speed

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