Highway Engineering
Select the correct statement.

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
Minimum and maximum values of group index can be 0 and 20 respectively

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Highway Engineering
A traffic rotary is justified where

when traffic volume is less than 500 vehicles per hour
number of intersecting roads is between 4 and 7
space is limited and costly
when traffic volume is more than 5000 vehicles per hour

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