As of 2008, the BEST runs a total of 3,480 buses, ferrying 4.5 million passengers over 365 routes, and has a workforce strength of 38,000, which includes 22,000 bus drivers and conductors (this comes to an average of 11.2 employees per bus). Single decker buses make up the bulk of the fleet, followed by the double-decker buses and air-conditioned buses, which ply on select routes.