Railway transport started to operate in the city in 1839 on the Brno–Vienna line; this was the first operating railway line in the current Czech Republic. Today's Brno is a railway junction of supranational importance; for passenger traffic there are nine stations and stops. The current main railway station is the central hub of regional train services; every day about 50,000 passengers use it and 500 trains pass through it; it is currently operating at full capacity. The current main station building is outdated and lacks sufficient operating capacity, but the construction of the new station has been postponed several times for various reasons. A Central station referendum was held on 7 and 8 October 2016, the same day as regional elections.