Trondheim Trafikkselskap Trondheim Trafikkselskap Trondheim Trafikkselskap or TT was the city public transport company for Trondheim, Norway between 1974 and 2001. It operated both the city buses, and the Trondheim Tramway until 1988. The company was owned by the city council. TT was founded in 1972 as a merged between the municipal owned tramway companies Trondheim Sporvei and Graakalbanen, and the bus company Bynesruten. In 1974, the company was reorganized as a municipal agency, and also took over the private bus operator Trondheim Bilruter, along with the city bus lines of Klæburuten and NSB Bilruter. In 2001, the company merged with Hemne
Plzeň Region reside in Plzeň which is the fourth largest city in the Czech Republic with 167 thousand inhabitants. Plzeň is the largest city in the region. There are 56 towns in the region, which account for 67% of the total population. More than 30% of the population lives in municipalities with less than 2000 inhabitants. The Plzeň Region is the third least densely populated region in the Czech Republic. The population density is 75.6 inhabitants per km² while the national average is 133.2 inhabitants per km². The least populated parts of the region are Tachov District (38.5 inhabitants per km²) and