Road surface

A road surface or pavement is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past, gravel road surfaces, macadam, hoggin, cobblestone and sett granite were extensively used, but these have mostly been replaced by asphalt or concrete laid on a compacted base course. Asphalt mixtures have been used in pavement construction since the beginning of the 20th century and are of two types: metalled (hard-surfaced) and unmetalled roads.

Metalled roadways are made to sustain vehicular load and so are usually made on frequently used roads.
Unmetalled roads, also known as gravel roads or dirt roads, are rough and can sustain less weight.
Road surfaces are frequently marked to guide traffic.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 3.0