Highway Engineering
Nagpur road plan formula were prepared by assuming

rectangular or block road pattern
radial or star and grid road pattern
radial or star and block road pattern
radial or star and circular road pattern

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Highway Engineering
The direct interchange ramp involves

diverging to the right side and merging from left
diverging to the right side and merging from right
diverging to the left side and merging from right
diverging to the left side and merging from left

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