Οικονομοτεχνική ανάλυση και αξιολόγηση του εκσυγχρονισμού και της επέκτασης του σιδηροδρομικού δικτύου στην Ελλάδα
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Keywords
Ελληνικό σιδηροδρομικό δίκτυο ; Σιδηρόδρομος ; Τρένα ; Οικονομοτεχνική μελέτηAbstract
This Master’s thesis presents a comprehensive techno-economic analysis for the upgrade and expansion of the Greek railway network, with an implementation horizon extending to the year 2032 and the commencement of full operational service in 2033. The study focuses on the spatial and functional configuration of the network through the classification of railway routes into seven geographical units, systematically examining the existing infrastructure, proposed new alignments, and sections undergoing upgrades. The technical scope of the interventions encompasses the cost estimation of construction and annual maintenance of new railway lines, the upgrading of existing infrastructure, the deployment of electrification systems, the installation of signalling, traffic management, and safety systems, as well as the procurement of modern rolling stock for passenger, freight, military, and Civil Protection operational requirements, in full compliance with European interoperability and safety standards. Furthermore, the organizational structure of the unified entity, Hellenic Railways S.A., resulting from the merger of existing railway operators, the required human resources, and the detailed implementation timetable organized into distinct phases, are thoroughly examined.
At a quantitative and financial level, the proposed railway system is estimated to accommodate annual passenger flows of 31,700,000 trips and annual freight flows of 16,693,000 tonnes, with primary concentration along the central network axis and international connections. The total investment budget amounts to €15,423,388,823 and incorporates expenditures for infrastructure, rolling stock, safety systems, land expropriations, and auxiliary facilities. The operation of the network presupposes staffing of 7,000 employees across administrative, operational, and technical functions. Financial evaluation demonstrates positive viability indicators, with a Net Present Value of €218,330,319, an Internal Rate of Return of 6%, a Return on Investment (ROI) of 15.5%, and a Payback Period projected in the year 2062, assuming stable shareholder financial support, which will be progressively phased out until the full operational autonomy of the entity is achieved. Overall, the study substantiates the technical feasibility and economic viability of a polycentric, interoperable, and outward-oriented railway network of national scale.