Attiki Odos (Greek: Αττική Οδός) is a private-owned superhighway in Greece. The entire stretch is tolled. The Proastiakos high-speed suburban rail is almost entirely in the median through the main section. Its numbers are 6 for the main section and 65 for Aigaleo and Ano Liosion Rings. It is the outer ring road of Greater Athens metropolitan area and a by-pass of the city. It comprises of two parts, the main road and the Ymittos peripheral road. Its total length is shown here:
Attiki Odos - History.
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Construction began in 1996. The superhighway was opened along with Eleftherios Venizelos International Airport where it is connected. The freeway ran from the Gerakas Street interchange but it didn't had access to Keratea directly until 2003 or a northbound interchange until 2002 to Athens from Athens. And the western part ran from Greece Interstate 1 and Kifissou Avenue to what is now exit 9.
In May 2001, an interchange 20B (now K2) opened for Koropi North and reads mainly a local road. Construction from Kifissou Avenue to Gerakas continued while the western part becan construction. Th ...