Highway Engineering
On a horizontal curve if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be

zero
less than the pressure on inner wheels
more than the pressure on inner wheels
equal to the pressure on inner wheels

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Highway Engineering
When the speed of traffic flow becomes zero,then

traffic density becomes zero whereas traffic volume attains maximum value
traffic density and traffic volume both become zero
traffic density and traffic volume both attain maximum value
traffic density attains maximum value whereas traffic volume becomes zero

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