Highway Engineering
Nagpur road plan formula were prepared by assuming

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

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Highway Engineering
The effect of grade on safe overtaking sight distance is

to decrease it on descending grades and to increase it on ascending grades
to increase it on both descending and ascending grades
to increase it on descending grades and to decrease it on ascending grades
to decrease it on both descending and ascending grades

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Highway Engineering
When the speed of traffic flow becomes zero,then

traffic density becomes zero whereas traffic volume attains maximum value
traffic density and traffic volume both become zero
traffic density attains maximum value whereas traffic volume becomes zero
traffic density and traffic volume both attain maximum value

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