cross section design

Question 1

traffic lane widths

Answer 1

3. 6 high speed
4. 3 urban
5. 0 low speed
6. 8 min

Question 2

purpose of shoulders

Answer 2

support pavemnet structure
facillitate efficeint traffic operation
enhance saftey

Question 3

traffic islands purpose

Answer 3

seperate traffic streams
provide crossing for peds
safe space for street furniture

Question 4

what is a clear zone

Answer 4

total width avaliable to driver to take evasive action

Question 5

4 treatments for roadside hazzards

Answer 5

remove minimise protect highlight

Question 6

LPH

Answer 6

limit of profitable haul

Question 7

what is swell with dirt

Answer 7

rocks end up occupying 30% more space when compacted