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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.
A 30 cm diameter pile penetrates a deposit of soft clay 9 m deep and rests on sand. Compute the skin friction resistance. The clay has unit cohesion of 0.6 kg/cm 2 . Suppose
important considerations in case of doors and windows
resection
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