The new rules will apply on trolleybus route 13 and buses 34, 35, 43, 47, and 54 and comes after a pilot project on other routes was deemed a success and the rules were subsequently introduced on trolleybus routes 1, 10, 20, 28, and 60.
Other routes are unaffected by the changes.
During the pilot project, launched on July 8, 2019, the goal was to increase the number of journeys registered by 15%, but the results show that the number of registered journeys on the routes in question has increased by more than 20% as fare-dodgers are now forced to run the gauntlet of entering beside the driver.
"The purpose of this procedure is to change the habits of passengers so that they record each trip, reduce the number of non-ticket passengers, and keep accurate passenger records," the company said, adding
"Similarly, the introduction of such a procedure may limit the number of persons traveling in public transport in smelly clothing."
Travel on vehicles on these routes must be registered at the driver's ticket console. For wheelchairs and wheelchair users however, boarding will still be through the center door.
A video showing how front door boarding is organized can be viewed above.