Greek National Road 8A, sometimes Greek National Road 8 is a toll road running from Kifissou avenue, in
Athens up to the northeast of
Patras. It is a motorway from Kifissou avenue up to
Corinth, for about 85km and the rest is an undivided highway with just one lane per direction. The total length is 215 km, but for the westbound lanes at the 207th km it intersects the Patras Bypass. It is signed as European road E94 from Kifissou Ave in Athens to southwest of Corinth, then it becomes part of
E65 from Corinth to Rhion interchange, and
E55 from Rhion to north of Patras. The future high-speed railway will run almost entirely from the Corinth Interchange in the west up to the junction with the Attiki Odos where it is within for the rest of its length. Until the reformation of the European Road network, it was known as the E19 which ran in its entire direction except from the Rio Interchange down to Patras.
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