Fundamental notions and the structure of the public passenger transport system, static and dynamic line elements. Defining transport demands on lines and the modes for determining proper factors in the passenger flow. Irregularities in the passenger flow, defining the peak hour, irregular flow factor in the peak hour. Capacity coefficient on a characteristic line segment. Manners for determining necessary transport capacities based on adequate flow values. Interval and frequency. Transport ability and transport power. Usability of transport capacity. Determining necessary transport capacities based on the expenses model. Manners for designing a timetable. Tariff system and billing system. Criteria for setting and measuring the quality of the network lines. Influence of the public transport system quality on the transport service quality.