under construction, despite considerable opposition from local environmental groups. Following the completion of the runway works, the airport will be able to serve intercontinental flights and cater for larger aircraft in the future. After long delays, the new runway of the airport was completed in spring 2019. Construction of a second terminal began in September 2018 and finished in February 2021, three months ahead of schedule. Railways Because of the Greek economic crisis, all international train links from the city were suspended in February 2011. Until then, the city was a major railway hub for the Balkans, with direct connections to Sofia, Skopje, Belgrade, Moscow, Vienna, Budapest, Bucharest and Istanbul, alongside Athens and other destinations in Greece. Daily through trains to Sofia and Belgrade were restarted in May 2014 but stopped again for COVID-19. Thessaloniki remains one of Greece's most important railway hubs and has the biggest marshalling yard in the country. Regional train services within Greece (operated by TrainOSE, the Hellenic Railways Organization's train operating company), link the city with other parts of the country, from its central railway passenger station, called the "New railway station" located at the western end of Thessaloniki's city centre. Port The Port of Thessaloniki connects the city with seasonal ferries to the Sporades and other north Aegean islands, with its passenger terminal, being one of the largest in the Aegean Sea basin; having handled around 162,731 passengers in 2007. Meanwhile, ongoing actions have been going on for more connections and the port is recently being upgraded, as Thessaloniki is also slowly turning into a major tourist port for cruising in the eastern Mediterranean. Motorways Thessaloniki lies on the crossroads of the A1/E75, A2/E90 and A25 motorways; which connect the city with other parts of the country, as well as the Republic of North Macedonia, Bulgaria and Turkey. The city itself is bypassed by the C-shaped Thessaloniki Inner Ring Road (Esoteriki Peripheriaki Odos, ), which all of the above motorways connect onto it. The western end of the route begins at the junction with the A1/A2 motorways in Lachanagora District. Clockwise it heads northeast around the city, passing through the northwestern suburbs, the forest of Seich Sou and through to the southeast suburb/borough of Kalamaria. The ring road ends at a large junction with the A25 motorway, which then continues south to Chalkidiki, passing through Thessaloniki's outer southeast suburbs. The speed limit on this