Which one of the following is a factor that is to be multiplied by the total traffic repetitions in a lane to convert it to equivalent repetitions along the maximum distressed path ?
- ALane distribution factor
- BLoad Safety factor
- CVehicle damage factor
- DLateral distribution factorCorrect
Solution
Concept
Lateral distribution of wheel loads
Step-by-step solution
1. Within a lane, wheel paths wander laterally. 2. The lateral distribution factor converts the total repetitions in the lane into repetitions along the most heavily trafficked (maximum distressed) path.
Explanation
The lateral distribution factor accounts for the wander of vehicles within the lane.
Why the other options are wrong
Lane distribution factor converts directional traffic to the design lane, VDF converts vehicles to standard axles, and load safety factor is a load multiplier.
Shortcut
Lane factor: between lanes; lateral factor: within a lane.
Common mistake
Choosing the lane distribution factor.
Correct answer: D) Lateral distribution factor