Road traffic is one of the major environmental problems facing cities because of (a) increasing levels of car ownership, (b) modal transfer from public transport to car, and (c) the decentralisation of population and employment from the inner to outer areas.
In addition to traffic-related air pollution and noise problems, large cities share growing concern for traffic congestion and accidents which are increasingly deteriorating the quality of life of urban communities. Improvement of public transport plays role in reducing car use and accidents. Public transport systems can be promoted by integrated networks of rapid tramps, subways, buses and trains.
 

Trends in means of vehicles used in the city passenger transport in the SR

Source: MDPaT SR
 

Performances of the city passenger transport according to both persons transported and seat - kilometres
 

Passengers transported by city passenger transport  (in thousands) - according to means of vehicles	Performances of city passenger transport according to means of vehicles (in milion seat - kilometres)
Source: MDPaT SR	Source: MDPaT SR

Performances of city passenger transport