About Alba Iulia
The city of Alba Iulia is a middle-sized Romanian town, located in the middle of Transylvania, with a population of 66.000 inhabitants. The city has a very particular historical meaning. In the middle of the city there is a huge Vauban style Citadel. Inside of this monument, PT is forbidden.
This is the reason why the PT transport lines are forced to follow a round shape in order to cover all the neighborhoods. Most of the houses and businesses (more than 90%) are within 300 m of a bus stop.
STP is operating also in Turda City (about 60 kilometers away from Alba Iulia). This is a similar city, considering the number of inhabitants and transport necessities.