Plovdiv canal in the country. In that period, Plovdiv became the birthplace of Bulgaria's movement for democratic reform, which by 1989 had garnered enough support to enter government. Plovdiv has hosted specialized exhibitions of the World's Fair in 1981, 1985, and 1991. The population by permanent address for the municipality of Plovdiv for 2007 is 380,682, which makes it the second in population in the nation. According to the data of the National Institute of Statistics (NSI), the people who actually live in Plovdiv are 346,790. According to the 2012 census, 339,077 live within the city limits and 403,153 in the
Plovdiv railway lines to Sofia, Panagyurishte, Karlovo, Peshtera, Stara Zagora, Dimitrovgrad, and Asenovgrad. There are three railway stations: Plovdiv Central, Trakia, and Filipovo as well as a freight station. Plovdiv has a large public transport system including around 29 main and 10 extra bus lines. However, there are no trams in the city, and the Plovdiv trolleybus system was closed in autumn 2012. Six bridges span the Maritsa river including a railway bridge and a covered bridge. There are important road junctions to the south, southwest, and north. Plovdiv has a well-developed cycling infrastructure which covers almost all districts of the