Attiki Odos in the context of "Athens Airport–Patras railway"

The A6 motorway, also known as the Attiki Odos (Greek: Αττική Οδός), is a toll motorway in Greece that forms the backbone of the motorway system in Athens, also known as the Attiki Odos after the concessionaire. Connecting Eleusis in the west with the Athens International Airport in the east, it forms the northern beltway of Athens. The length of the motorway is 48 kilometres (30 mi).

The A62 motorway, also known as the Hymettus Ring Road (Greek: Περιφερειακός Υμηττού), and formerly signed as the A64 motorway until 2024, is a branch of the A6 motorway in the Attiki Odos motorway network. It is named after the Hymettus mountain range, which it partly encircles.

The motorway serves parts of eastern Athens, and planning is underway to extend it to the southern suburbs with a tunnel following Mount Hymettus to Elliniko, and it would ebd at Vouliagmenis Avenue. Another extension from the north-east end will extend further eastwards to the port of Rafina.

The A65 motorway, also known as the Egaleo Ring Road (Greek: Περιφερειακή Αιγαλέου), is a motorway in Athens. Part of the Attiki Odos highway system, it branches off the main A6 motorway, serving western Athens. It is named after the Egaleo mountain range it runs parallel to.

The motorway is meant to serve as a connector road with National Road 8, however, it remains unfinished as the construction of its southernmost 1.4 km section near Skaramagas was delayed and is expected to be completed by 2028.