Traffic surveys are carried out

The answer is choice "3" all the above

The most comprehensive answer is 

3: All the above

To design proper drainage system

All of the above                   thanks

Traffic Survey are Carried out to determine the facilities to traffic regulation.

Option -3 is correct All of Above.

Option3 - All of the above

to determine the facilities to traffic regulations...

All of the above, also to determine the noise load on the environment.

To control the Traffic in different roads

I believe the correct answer is :

 1: To determine the facilities to traffic regulations