Traffic congestion in urban areas has a significant impact on the quality of transport systems, and, in particular, of surface collective transport (CT). Buses are directly affected by the congestion of traffic and therefore fall behind. They are often considered less reliable than other public transport vehicles. In addition, these chronic disturbances have direct consequences to strengthen at the same time the competitiveness of the particular vehicle relative to shared transport systems.

Even if dedicated bus lanes can limit the impact of chronic disturbances of urban traffic, these potentially results in an inefficient use of road space for other vehicles. In addition, in some cases and for specific sites, the creation of bus lanes is not feasible. The management of these chronic crises affecting the CT network has still not been satisfactorily resolved and it is necessary to use innovative techniques traffic management to improve the quality of the CT network.