There are a number of reasons why asphalt edge cracks occur on roadsides and driveways. According to the investigate, it can easily find that asphalt edge cracks develop more often on rural roads than they do on main roads.
Asphalt edge cracks are usually symptoms of deeper underlying problems in the pavement. Rural roads are typically much narrower than main roads, so vehicles travelling in opposite directions often have to move closer to the edge of the road when passing one another. If the foundation of the asphalt is weak, thin, or old and has not been properly maintained over the years, then the constant weight and pressure exhibited by cars on the edge—usually larger vehicles, like trucks or tractors—causes the asphalt to degrade a lot faster.
Also, if the roads are not equipped with proper drainage systems, then the water will pool at the side of the road and get beneath the surface, causing the ground to erode. Daily temperature changes and weather patterns can also contribute to the formation of asphalt cracks. Cold temperatures cause the asphalt to shrink, and heat from the sun can cause the pavement to become brittle and break apart. Of course, the damage is not done overnight. It starts below the surface and it can take years before the damage is noticeable in plain view. This is why proper road maintenance is crucial and should take place as soon as the disrepair is discovered.
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