ATTIKO METRO S.A. has included at the base project of the Thessaloniki Metro the infrastructure required to enable the further extension of the network with no interruption to the operation of the system. At the A' phase of the Thessaloniki Metro extensions, two extensions are provided for to be cosntructed:

	Extension to Stavroupoli: 5 km with 5 new Stations
	Extension to Kalamaria: 5 km with 5 modern Stations

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With regard to the two aforementioned extensions the following has been taken into consideration:

	Civil Works, E/M and Railway Systems of the Base Project provisions.
	Train operation with double headway.
	Moreover, the need to construct an additional depot is under consideration.

The project related to the construction of the first extension of the Thessaloniki Metro towards Kalamaria, was put to tender on 6th of May 2009.This project refers to the construction of 5 modern Metro stations and 4,8 km of underground line, also incorporating the construction of a Transfer Station and a car parking facility with a capacity of 1000 parking spaces at the terminal station of Mikra.

For the extension of the Line to Kalamaria, the amount of 425,000,000 euros has been secured by the 4th CSF. Attiko Metro’s goal is to have the project awarded within 2012.

Moreover, the preliminary designs for the extension to Stavroupolis and Efkarpia (5 stations and geotechnical investigations, alignment of the project, etc.) have been completed and subsequently the project maturity level studies shall commence; consideration is also given to the possible further extension of the project towards the area’s Hospitals.

Beyond the above, the future extension plan also foresees:

	The eastward extension to achieve the connection with Micra Airport, possibly by means of a surface fixed route mode,
	The westward extension, by extending the base line from the New Railway Station, to Evosmos and Kordelio, with 4 stations,

while, in parallel, the feasibility of creating new branches to the base project is also examined.

With these extensions in place, the form of the city of Thassaloniki will change, the city will be radically upgraded and the quality of the citizens daily life shall be considerably improved.