4 ms·

Aren't most trucks multi-axle and have distributed weight?

• ravar 9y ago
  To put some numbers to this, lets take the model that damage scales with weight per surface area to the fourth power. If you double the number of axles but maintain the same weight. Then there is half as much stress on twice as much area, 16x less damage per area, 2x area. 8x less total damage.
• rtkwe 9y ago
  Yes, but at an average of 40000 lbs over the 5 axles they are still multiple times heavier per axle than a regular car.
  • ProAm 9y ago
    But they also buy multiple more of gas no?
    • rtkwe 9y ago
      Estimates put it at about 6.5 mpg not enough to make up for the exponential way that their weight increases the damage they cause.