The average annual highway cost for a road system may be summed up by ______

The rate of fuel consumption for every motor cycle will be at ______

The method not used in economic analysis is ______

The unevenness index in terms of the international roughness index is given by ______

The improvement in highway leads to the following.

The social facilities like medical services, educational and recreation facilities are classified as ______

The CRF denotes ______

The cost of the vehicle operation and time for unit distance may be represented by ______