Highway Engineering
Which of the following methods is preferred for collecting origin and destination data for a small area like a mass business center or a large intersection ?

road side interview method
home interview method
return postcard method
license plate method

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Highway Engineering
In case of summit curves, the deviation angle will be maximum when

an ascending gradient meets with a descending gradient
an ascending gradient meets with a level surface
a descending gradient meets with another descending gradient
an ascending gradient meets with another ascending gradient

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