What is the desirable distance for a tree from the carriage way?

The planting of trees along road side is called ______

The point that should not be considered for a better highway is?

The studies prepared for environmental studies are called ______

The compensation for loss of land in agricultural areas should be paid ______

The cross drainage structure of a highway is considered in which aspect?

The number of factors to be considered during the road side development studies are ______

The pressing problems on the existing highway are ______