Abstract
The stable development of public bus transport includes the improvement of the social, economic and ecological aspects of its activity or increasing its social effectiveness through improving the quality of offered transport services, reducing energy consumption, using energy sources more effectively and reducing the harmful effects on the environment. Public bus transport is the most commonly used type of ground transport in the city of Sofia; in recent years, unfortunately, the quality of its services has dropped and its harmful influence on the environment has grown. This is primarily caused by obsolete vehicles and the lack of adequate measures for improving its social and economic effectiveness. The present article substantiates the necessity for its future stable development and outlines the measures for improving the quality of the transport services it offers as well as reducing harmful emissions. In order to support the study’s topicality, it should also be pointed out that similar goals and objectives set in the Declaration for reducing harmful emissions, creating conditions for the use of renewable energy and attracting green investments, which Sofia joined during the World Conference for Climate Change held in Paris in December 2015.
Highlights
The stable development of mass public transport is in accordance with the main guidelines of the EU’s transport policy for achieving stable urban mobility of the population
Urban mobility needs to guarantee the economic development of cities, high quality of life for its residents and environmental protection
Along with personal automobiles, is the primary air pollutant in the capital with harmful emissions and noise pollution. This is primarily caused by the unsatisfactory condition and high average age of the rolling stock, as well as the large number of vehicles that have not been adapted to the social standards for accessibility and have a negative influence on the environment
Summary
The stable development of mass public transport is in accordance with the main guidelines of the EU’s transport policy for achieving stable urban mobility of the population. Along with personal automobiles, is the primary air pollutant in the capital with harmful emissions and noise pollution This is primarily caused by the unsatisfactory condition and high average age of the rolling stock, as well as the large number of vehicles that have not been adapted to the social standards for accessibility and have a negative influence on the environment. It is crucial to note that 292 buses from the urban bus park are 12 years old, which is the permissible norm of urban buses’ mileage life On one hand, this stipulates large fixed costs for their operational maintenance and the necessity to maintain a significant number of spare buses to avoid the disruption of the freight rhythm. As the indicated data shows, the outdated bus fleet and its extremely poor condition lead to high costs and the drastic deterioration of the environment’s ecological indicators
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