The public transport in Sofia consists of a comprehensive network of bus, trolleybus, tram and metro lines. It is overseen by the Sofia Urban Mobility Center, a municipal enterprise responsible for route planning, scheduling, fare collection and ticket inspection. It also pays the various transport operators for their service on a per-kilometer basis. Sofia is the only city in Bulgaria that operates the four modes of public transport. As of 2023, public transport in Sofia is operated by 3 municipal and 1 private company: More information...
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