Issue on Movement Stability of Three Sections Trailer Bus Train

The article considers the stability of three sections passenger bus train that consists of three buses of the same type, during its operation in BRT system, which is usually used by the buses of particularly large capacity with the total length of up to 25 m. The efficiency in operation of such buses closely deals with the passenger traffic, which may be changed many times during the day. Therefore, a bus train that consists of two (or three) buses or trolleybuses, which operate in a clutch, the passenger capacity of which is similar to the paired buses and trolleybuses, may be promising. A three sections bus train operates during rush hours, and during the off-peak period - each bus separately (it is possible to park one or two buses on a dedicated site). The indices of cross-section stability and the factors that influence on their numerical values are defined in order to generalize the scheme.