Quote:
Originally Posted by rousseau
Though is there actually any data confirming that the heavy vehicles on our roads cause more damage to asphalt than private passenger cars when you consider the real numbers of both?
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I expect in most of Canada the weather causes a majority of the damage for municipal streets.
Some small side-streets, which get a weekly garbage truck and occasional snow plow, still get resurfaced every ~30 years. Large multi-lane streets with a large number of transport trucks seem to be every ~20 years. Those same streets in a place like Miami might last more than 50 years between major maintenance.
Major highways with heavy high-speed traffic and lower tolerance for flaws (potholes) are a different matter; but that's a minority of the resurfacing work. Costs are high (per sqft) due to a desire to keep closures very short and outside peak-use periods.