cross section design Flashcards
1
Q
traffic lane widths
A
- 6 high speed
- 3 urban
- 0 low speed
- 8 min
2
Q
purpose of shoulders
A
support pavemnet structure
facillitate efficeint traffic operation
enhance saftey
3
Q
traffic islands purpose
A
seperate traffic streams
provide crossing for peds
safe space for street furniture
4
Q
what is a clear zone
A
total width avaliable to driver to take evasive action
5
Q
4 treatments for roadside hazzards
A
remove minimise protect highlight
6
Q
LPH
A
limit of profitable haul
7
Q
what is swell with dirt
A
rocks end up occupying 30% more space when compacted
