Chief Traffic Officer Ghulam Abbas Tarar on Sunday said that heavy vehicles were not allowed to enter into Murree. He said mini buses or small vans should be utilised for school trip as many accidents has been occurred on heavy vehicles, he added. The traffic police was striving to provide best facilities to the tourists come into the hill station. In a statement the CTO said that 55 more wardens had been deputed to facilitate the tourists so that they could enjoy the snowfall and chilly weather.