Dry dock

Wet dock

Floating dock

Refuge dock

rectangular or block road pattern

radial or star and block road pattern

radial or star and circular road pattern

radial or star and grid road pattern

Nagpur road plan formulae take into account the towns with very large population.

Nagpur road plan has a target road length of 32 km per 100 square km.

Second 20-year plan has provided 1600 km of expressways out of the proposed National highway.

Second 20-year plan allowed deduc-tion of length of railway track in the area while calculating the length of roads.

reconnaissance, map study, preli-minary survey and detailed survey

map study, preliminary survey, recon-naissance and detailed survey

map study, reconnaissance, prelimi-nary survey and detailed survey

preliminary survey, map study, recon-naissance and detailed survey

straight line

parabolic

elliptical

combination of straight and parabolic