Introduction
Athens is one of Europe’s busiest capitals. Yet, its urban rail network is quietly buckling under the weight of aging infrastructure and surging demand. Today, around 800,000 commuters use the city’s fixed-track transit system every day. Ridership jumped 8% in 2024 compared to 2023 — and a striking 25% compared to 2022. Furthermore, as more Athenians return to public transport, the strain on outdated trains, tracks, and stations grows more visible by the day.
The result is a system stretched dangerously thin. Delays are common, platforms overflow, and trains that should travel at 80 km/h now crawl at 40. Consequently, Athens’ metro — once the pride of the 2004 Olympics — is showing its age in ways that affect millions of daily commuters.
How Old Is Athens’ Metro Fleet?
After 25 years of continuous operation, the Athens metro fleet is significantly past its prime. The metro opened in 2000, meaning much of its rolling stock and infrastructure dates back to the late 1990s. Critically, the system still runs on 1990s-era technology that has long exceeded its intended lifespan.
The fleet shortage is particularly acute on Line 3, which stretches from Piraeus to Athens International Airport. This extension increased passenger volume sharply. However, the number of trains available has not kept pace with demand. As a result, intervals between trains are longer than in most comparable European cities, where trains typically arrive every two minutes or less.
Key Challenges Facing the Network
Overcrowding and Delays
Overcrowding is the most visible symptom of the network’s strain. At Syntagma Station — the beating heart of the Athens metro — morning rush hours regularly descend into chaos. Commuters pack escalators, carriages, and doorways. Platforms reach unsafe capacity levels. Meanwhile, STASY, the company that operates Athens’ urban rail services, acknowledges the problem but notes that no metro system worldwide is entirely free of peak-hour crowding.
Nevertheless, experts argue that Athens’ situation goes beyond normal congestion. According to Athanasios Tsianos, president of the Hellenic Association of Transport Engineers, cutting train intervals from six minutes to three could double capacity immediately. In addition, he argues that investment in upgrades should be treated as economic investment, not a cost — because a well-functioning transit network returns value through reduced pollution, improved safety, and stronger economic activity.
Track Deterioration and Speed Cuts
Track damage is another major threat to reliable service. Christos Koukis, president of the fixed-track drivers’ union of STASY, explains that neglect during Greece’s financial crisis and the COVID-19 pandemic compounded decades of wear. Curves and switches suffer the most stress. Moreover, patching damaged sections provides only short-term relief — full section closures are needed to restore tracks properly.
As a direct consequence of track degradation, train speeds have been reduced on multiple stretches. Trains that are designed to operate at 80 km/h now run at 60 or even 40 km/h. This not only increases travel times but also reduces the number of trips each train can complete per hour, further shrinking effective network capacity.
The Air Conditioning Crisis
Twenty aging trains on Line 3 still operate without air conditioning. During Athens’ brutal summer months, commuters and tourists endure sweltering carriages with no relief. This issue compounds overcrowding, as packed trains with no cooling create conditions that test both comfort and safety. Furthermore, Line 3 serves the airport corridor, meaning international visitors receive a poor first impression of the city’s public transport.
Line 1: The Most Vulnerable Route
Line 1 — the historic green line connecting Piraeus to Kifissia — faces the sharpest challenges of all. Unlike the newer Lines 2 and 3, Line 1 is largely above ground, runs older rolling stock, and suffers from inadequate air conditioning and persistent reports of theft. Its trains are so outdated that OASA, the transport authority, excluded it from Athens’ new 24-hour Saturday metro service launched in September 2025.
Authorities stated that Line 1 will join the 24-hour schedule only after its trains are renewed. However, no new trains are currently on order. Instead, a refurbishment project for 14 of Line 1’s existing trains is underway, handled by Spanish manufacturer CAF. That project has already been delayed by seven months. As of late 2025, the first refurbished train is undergoing trial runs, with full implementation pushed further into the future.
Stamatis Giannopoulos, president of the STASY Workers’ Union, warns that extending Line 1’s operating hours with current trains would likely trigger frequent breakdowns. Such failures, he notes, could disrupt daytime services across the entire network.
What STASY Plans to Fix It
STASY’s leadership has identified five critical priority areas for the network’s recovery. These include increasing train availability, modernizing rolling stock, upgrading aging infrastructure at both station and track level, improving digital systems, and expanding service hours where operationally viable.
To fund these goals, STASY is drawing partly on EU Recovery Fund resources. Similarly, the Greek government has adopted an action plan in agreement with the European Commission to address structural railway shortfalls. The Commission reports that satisfactory progress is being made, though it acknowledges much work remains.
Additionally, 2025 has been positioned as a pivotal year for fleet renewal. New trains and upgraded systems are essential — without them, the network will continue to deteriorate even as ridership climbs.
Expert Warnings and Union Concerns
Transport engineers and union leaders are aligned in their concern: Athens is roughly 15 years behind comparable European transit networks. Panagiotis Sbarounis, a transit analyst, argues that bold investment in trains — not just in infrastructure — is the most urgent priority.
Koukis echoes this sentiment, pointing to a broader cultural problem: Greece builds but does not consistently maintain. This mindset, he argues, allowed problems to compound over decades. Today, the consequences are visible every morning at Syntagma.
Tsianos adds that the economic argument for investment is strong. A modern, reliable transit network attracts more users, reduces car dependency, lowers urban emissions, and boosts productivity. Every euro invested in metro upgrades generates returns across the city’s economy.
Conclusion
Athens’ rail network faces a defining moment. Aging trains, overcrowded platforms, degraded tracks, and a fleet shortage have pushed the system to its limits. Encouragingly, plans for fleet renewal and infrastructure upgrades are underway. However, swift execution is critical. As ridership continues to grow, the window to modernize the network before deeper failures occur is narrowing. For millions of daily commuters, the stakes are high — and the need for action is immediate.
