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Traffic Surveys:
The following traffic surveys are needed for preparing a good road project:
Classified Volume Counts
This survey is normally carried out for 7 days, 24 hours a day. The number of vehicles of different types is counted:
PCU Factor
Cars/jeeps, vans 1
Two-wheelers 0.5
Three-wheelers 0.75
Light Commercial Vehicles/Agricultural Tractor 1.5
Buses 3
Heavy Commercial Vehicles 3
Multi-axled Vehicles 4.5
Tractor-trailers, Truck trailers 4.5
Cycles 0.5
Cycle rickshaws 2.0
Bullock carts 6.0
Horse carts 4.0
The PCU factor (Passenger Car Unit) is the multiplying factor for each class of vehicle to express the traffic in PCUs per day.
Explain the Erosion and Sedimentation Erosion: Removal of soil or other channel material caused by the rapid movement of water over the channel surface. The removed material
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• The transmission of load through a structure can be complex but in any particular case - The applied load can usually be classified into 4 types •
Necessity for Road Drainage: Poor drainage can cause damage to the various components of a road in the following manner: (a) Water can enter the various pavement layers th
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Determine the stresses within the rod: Two parallel walls are stayed together through a steel rod of 5 cm diameter passing through metal plates and nuts at both ends. The nuts
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