
Image from Unsplash by Wietse Jongsma
Sofia (Bulgaria)
Sofia, the capital of Bulgaria, is situated in the Sofia Valley at the foot of the Vitosha Mountain, with an average elevation of 746 meters. This topography influences urban development and transport infrastructure, necessitating careful planning to accommodate elevation changes and natural features. 21 tram lines, 11 trolley bus lines, and approximately 200 bus lines make up the city's public transport services.
In 2019, Sofia adopted its Sustainable Urban Mobility Plan (SUMP) for the period 2019–2035, aiming to transform the city's transport system into a more sustainable and efficient network. The plan focuses on promoting public transportation, cycling, and walking, while reducing reliance on private vehicles. Key initiatives include expanding the metro and tram networks, developing cycling infrastructure, and implementing smart traffic management systems. The SUMP also addresses environmental concerns by aiming to reduce air pollution and greenhouse gas emissions.
Fast Facts
1,290,000
Population
1,349 km²
City area












