civil engineering

Many townships, cities and villages throughout the USA have adopted their own highway cross-sections.

If this is a job related project for your company then you had better check the municipality's adopted geometric standards. If that municipality doesn't' have adopted standards, then I suggest that you have a good long talk with your supervisor/boss-man where to find other municipality's adopted highway and road standards.

If this is a homework problem then I suggest that you open your textbook and start reading & studying. We cannot do your homework and studies for you.

Some explanation/background might help get some response other than "do your own homework".

As Capt. said, the rules are mostly local, so not having ANY USEFUL INFORMATION will only hinder your quest for help.

From my perspective, your only salvation would be if you were a newly elected county official looking for casual advice.

Happy Holidays.