Since the 1980s, the road and rail network of Greece has been significantly modernized. Important works include the A2 (Egnatia Odos) motorway, that connects northwestern Greece (Igoumenitsa) with northern Greece (Thessaloniki) and northeastern Greece (Kipoi); the Rio–Antirrio bridge, the longest suspension cable bridge in Europe (2,250 m (7,382 ft) long), connecting the Peloponnese (Rio, 7 km (4 mi) from Patras) with Aetolia-Akarnania (Antirrio) in western Greece.
Other important projects that are currently underway include, the A5 (Ionia Odos) motorway that connects northwestern Greece (Ioannina) with western Greece (Antirrio) and the A8 (Olympia Odos) in Peloponnese, connecting Athens with Peloponnese (Patras and further towards Pyrgos), and the completion of the unfinished sections of the A1 motorway, connecting Athens to Thessaloniki and Evzonoi in northern Greece; and the construction of the Thessaloniki Metro.
The Athens Metropolitan Area in particular is served by some of the most modern and efficient transport infrastructure in Europe, such as the Athens International Airport, the privately run A5 (Attiki Odos) motorway network and the expanded Athens Metro system.
Most of the Greek islands and many main cities of Greece are connected by air mainly from the two major Greek airlines, Olympic Air and Aegean Airlines. Maritime connections have been improved with modern high-speed craft, including hydrofoils and catamarans.
Railway connections play a somewhat lesser role in Greece than in many other European countries, but they too have also been expanded, with new suburban/commuter rail connections, serviced by Proastiakos around Athens, towards its airport, Kiato and Chalkida; around Thessaloniki, towards the cities of Larissa and Edessa; and around Patras. A modern intercity rail connection between Athens and Thessaloniki has also been established, while an upgrade to double lines in many parts of the 2,500 km (1,600 mi) network is underway. International railway lines connect Greek cities with the rest of Europe, the Balkans and Turkey.