Arrange the following stages in ascending order of the planning process of urban transportation:
a- Model split
b- Inventories
c- Trip generation
d- Traffic assignment
e- Plan preparation and evaluation
f- Trip distribution
1
b, f, c, a, d, e
2
b, c, f, d, a, e
3
b, c, a, f, d, e
4
b, c, f, a, d, e