The 'Bridge Formula' allows:

Less weight for axles that are closer together.. Section 3.2: The Bridge Formula permits less maximum axle weight for axles that are closer

The 'Bridge Formula' allows:

ANSWER BREAKDOWN
  • A. Incorrect. "Heavier weights on shorter axles." is not correct. The Bridge Formula permits less maximum axle weight for axles that are closer together to prevent damage to bridges.
  • B. Correct. The Bridge Formula permits less maximum axle weight for axles that are closer together to prevent damage to bridges.
  • C. Incorrect. "More weight for single axles." is not correct. The Bridge Formula permits less maximum axle weight for axles that are closer together to prevent damage to bridges.
  • D. Incorrect. "Heavier trucks on wooden bridges." is not correct. The Bridge Formula permits less maximum axle weight for axles that are closer together to prevent damage to bridges.