Concrete pavements have been used in Germany mainly for federal motorways, airfields and industrial areas and less for state and provincial roads. By-passes have been constructed with asphalt pavements. In 2001/ 2002 a by-pass in the course of a federal trunk road was constructed with a concrete pavement for the first time on the basis of a more economic alternative proposal. The two-layer construction method with a very thin upper layer was used. Concrete pavements are suitable for by-passes when definite peripheral conditions exist. Although Germany is very experienced in concrete road construction a concrete by-pass is something new for quite a lot of district road offices. Therefore the here described by-pass may be regarded as a pilot scheme.
