The volume at a section of a two-lane highway is 1500 veh/h in each direction and the density is about 25 veh/mi. A large dump truck loaded with soil from an adjacent construction site joins the traffic stream and travels at a speed of 10 mi/h for a length of 2.5 mi along the upgrade before turning off onto a dump site. Due to the relatively high flow in the opposite direction, it is impossible for any car to pass the truck. Vehicles just behind the truck therefore have to travel at the speed of the truck which results in the formation of a platoon having a density of 100 veh/mi and a flow of 1000 veh/h. Determine how many vehicles will be in the platoon by the time the truck leaves the highway
The volume at a section of a two-lane highway is 1500 veh/h in each direction and the density is
about 25 veh/mi. A large dump truck loaded with soil from an adjacent construction site joins the
traffic stream and travels at a speed of 10 mi/h for a length of 2.5 mi along the upgrade before
turning off onto a dump site. Due to the relatively high flow in the opposite direction, it is
impossible for any car to pass the truck. Vehicles just behind the truck therefore have to travel at the
speed of the truck which results in the formation of a platoon having a density of 100 veh/mi and a
flow of 1000 veh/h. Determine how many vehicles will be in the platoon by the time the truck
leaves the highway
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