The A7 begins just west of the Isthmus of Corinth, branching off from Greek National Road 8A (which is now integrated into the Olympia Odos).

In existing sections of the motorway, improvements include the straightening of dangerous curves, constructing new tunnels, completing the Artemision tunnel, adding more light fixtures and upgrading the median throughout.

This was a two-lane road with dangerous curves, especially in the "Kolosoúrtis" (Κωλοσούρτης) section west of Myli; the road exists to this day and is open to local traffic.

[4] The southern end is also the ring road of Kalamata city, distributing to the local agriculture and industrial economy, as well.

[5] The company was founded in Nestani on 22 December 2006, and is a consortium of Ellaktor as the majority shareholder (71.67%), AVAX (15%), and Intrakat (13.33%).