Highway Engineering
If the stopping distance and average length of a vehicle are 18 m and 6 m respectively, then the theoretical maxi¬mum capacity of a traffic lane at a speed of 10 m/sec is

2500 vehicles per hour
1500 vehicles per hour
2000 vehicles per hour
3000 vehicles per hour

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

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