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Raison D être For The Southern Metropolitan By-Pass

As it crosses the Bilbao metropolitan area - the so-called Southern Solution -, the A-8 motorway is currently used by a huge volume of long short distance traffic. Traffic jams tailbacks are increasingly common, particularly between Basauri Cruces.

As it is impossible to adopt demand control measures for this type of journeys, which would have a negative impact on the socio-economic development of Bizkaia, to expand the capacity of the Southern Solution due to the existing urban planning the terrain, there is a need for a new approach to meet future traffic demands. The Metropolitan Southern Bypass is the solution.

The Metropolitan Southern Bypass is an alternative route to the A-8 motorway between the Pobeña Viaduct (Muskiz) the Kortederra zone, on the municipal boundary between Galdakao Amorebieta. It is 36 km long. In principle, three implementation phases are planned. Phase 1A will run the Santurtzi hub to the Larraskitu hub, by the current Eastern Bypass link road. It will be a total of 16 km long. This first phase is seen as the solution to the existing regular traffic problems in the section of A-8 between Sestao the Bilbao exit at Sabino Arana.

The Bilbao Metropolitan Southern Bypass was included in the Bizkaia Special Accessibility Plan 2003, approved by the General Assemblies.