Saloon car public transport transportation system

The invention relates to a road-transportation means, in particular to a sedan public-transportation system; the invention contains operating routes and sites set on intercity road arteries with large car flow in traffic, and sedan public-transportation vehicles for carrying sedans and passengers; the structure of the sedan public-transportation vehicle comprises a driving cab, a passenger cabin and a sedan cabin; the invention is characterized in that one vehicle of the invention can carry lots of sedans; the invention has the advantages of flexibility and convenience involved in self-driving; in addition, the invention can avoid the fatigue and tiredness caused by medium-long-distance driving, and reduce emissions and occupations in traffic area; the invention is energy saving, environment friendly and safe.