Highway Engineering
The diagram which shows the approximate path of vehicles and pedestrians involved in accidents is known as

pie charts
condition diagram
collision diagram
spot maps

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

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Highway Engineering
Select the correct statement.

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

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