More than a dozen new double decker buses are to be launched on to busy commuter routes in Sheffield at a cost of more than £2.5m.
Three new routes are being opened across the city which will be covered by the 15 new buses, operators Stagecoach Yorkshire has said.
The company said the new buses would also lead to 80 new jobs.
The new routes are between Ecclesfield and Batemoor; High Green and Lowedges and Malin Bridge and Stannington.
The new buses will be 80-seater vehicles fitted with engines that conform to the latest emission standards, the company said.
Multi-camera CCTV and additional security monitors on the upper deck have been fitted.
Extra land next to the firm's Ecclesfield depot has been bought to accommodate the fleet expansion.
Officials at Stagecoach also said a further 33 low floor buses would be brought in to bolster bus services across the city, including the new routes.