Analyzing the State of Bus Transport within Sofia Municipality and Guidelines for Its Stable Development

Bus transport does not require special­ized infrastructure, which makes it the most flexible type of urban passenger transport, al­lowing fast and easy development and man­agement. Therefore, it is an irreplaceable part of the system for ensuring urban mobility in major cities. At present, the bus transport con­tinues to be one of the most popular types of urban passenger transport, used as a main one in multiple European capitals. However, it is the biggest air pollutant, which is due to many factors, especially the type of used fuel. In order to reduce its harmful impact on the environment due to its functioning, specific measures have to be adopted; for starters, the rolling stock should be gradually replaced and more modern, environmentally friendly vehicles should be incorporated into the city’s transport system, thus replacing convention­al fuels with alternative types. This will sig­nificantly improve the quality of automobile transport and the ecological indicators of the air in the capital.