Specified Scale

         I.      Major traverse                :1:1000

      II.      Minor traverse                :1:500

Contour interval               : 0.5 m, im (for hill side)

  III.      Bridge Site Survey

Topographical map     :1:500
Contour interval          :1.00

Longitudinal-section
Horizontal scale        :1:500
Vertical scale             :1:100

Rivercross-section
Horizontal scale        :1:500
Vertical scale             : 1:100

IV.    Road Survey

Detail survey        :1:500

Longitudinal-section
Horizontal scale   :1:500
Vertical scale        :1:100

Cross-section
Horizontal scale   :1:200
Vertical scale        : 1:200 or 1:100

Maximum gradient                 :12% in 1 OOm

Radius of curve                      : 12 m (not less than it)

All these specifications are the minimum requirements. If we can do all these task accurately then these apply these requirements. It will still better for doing so but if we can’t do so our aim should be fulfilled at least these requirements. Thus there are not those limitations, beyond which are not required to improve while performing the specified job.