Highway Engineering
The provision of traffic signals at intersections

reduces right angled and rear end collisions
reduces right angled collisions but may increase rear end collisions
increases right angled and rear end collisions
reduces rear end collisions but may increase right angled collisions

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Highway Engineering
Select the correct statement.

Minimum and maximum values of group index can be 0 and 20 respectively
More the value of group index, less thickness of pavement will be required
All of these
More the value of CBR, greater thickness of pavement will be required

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Highway Engineering
The sequence of four stages of survey in a highway alignment is

map study, reconnaissance, preliminary survey and detailed survey
map study, preliminary survey, reconnaissance and detailed survey
preliminary survey, map study, reconnaissance and detailed survey
reconnaissance, map study, preliminary survey and detailed survey

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