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>The increased traffic causes wear and tear on the roads to increase Unless they route large trucks through local roads, the impact is negligible. https://www

• eesmith 5y ago
  Thank you. Though looking at it, that's a different scenario than I was thinking of. My local parking garage has groove marks on the entrance and exit, where all cars are channeled through the same route, and where they are most likely to brake and start. Large trucks aren't allowed, so in that specific case the impact isn't "negligible". I was using that observation to guide my intuition. The experiment you pointed to was for vehicles driven "around a loop until the road was damaged to a certain point", which I believe doesn't include starting and stopping. A search found https://ascelibrary.org/doi/10.1061/9780784478462.006 https://ascelibrary.org/doi/10.1061/9780784478462.006 with "In hot-mix asphalt (HMA) pavements, rutting failure due to shear deformation is often more prevalent at intersections with turning and/or stop-go traffic, particularly when subjected to slow-speed heavy traffic loading and high temperatures.", so that's the engineering way to describe what I was thinking of. I would be surprised that a road designed for 30 cars per hour can handle 150 cars per hour with no shortening of its lifespan. I realize that weather and other factors play a role in deterioration, but in my 10 minutes of looking I found nothing which gave something more concrete (or more asphalt ;).