The weighted average of the damages caused by the individual axle load group with respect to the corresponding volume of the traffic of each group is known as
- ALane distribution factor
- BLoad Safety factor
- CVehicle damage factorCorrect
- DHeavy-vehicle adjustment factor
Solution
Concept
Vehicle damage factor (VDF)
Formula
VDF = Σ (ni/N)(Li/Ls)4
Step-by-step solution
1. VDF is the number of standard axle repetitions caused by the passage of one vehicle. 2. It is obtained as the weighted average of the damage by each axle load group over the traffic volume of each group.
Explanation
The vehicle damage factor converts commercial traffic into equivalent standard axle repetitions.
Why the other options are wrong
Lane distribution and heavy-vehicle adjustment are different factors, and load safety factor is a load multiplier.
Shortcut
VDF = damage per vehicle.
Correct answer: C) Vehicle damage factor