One of the major reasons for road resurfacing projects is to reduce the poor condition of a road’s rocky surface. As road maintenance studies measure which roads need improvement projects, a road’s texture is often taken into consideration. Measuring between three major standards, roads can require various levels of work to provide motorists with better surfaces, which may translate to better vehicle performance and environmental standards.
When measuring the texture of the road, the optimal difference between low and high points over a sample distance should be between 0 mm and 0.5 mm. Known as microtexture, this level of texture on a roadway balances some of the benefits of an extremely slight texture with flatness that reduces drag. Microtexture provides dry friction, which adds traction to the road and gives drivers better handling in turns and roadway curves.
Between 0.5 mm and 50 mm, texture analysis calls this level of texture macrotexture. The most desirable properties of a road featuring macrotexture occur when the texture is on the lower end of bumpiness. The road may create similar conditions in terms of road grip as microtexture, but includes a feature, due to the size of the dipping road surface, that swallows pockets of sound. This means that these roads typically feature less noise caused by vehicles driving over the surface.
Above 50 mm, the surface is known as megatexture. As higher levels of macrotexture can begin to become problematic in terms of drag, megatextured roads can create such inefficient surfaces that vehicles consume more fuel in the process of driving. This can decrease vehicle fuel economy as well as increase dangerous carbon dioxide emissions.
If you would like to learn more about road surface and how these surfaces can wear down on tires and increase wear to vehicle suspensions, contact a car Pedestrian Accident Attorney Philadelphia.