"Y gost ar gyfer rhedeg y bysiau ysgol bresennol yw tua £160 miliwn y flwyddyn ac mae wedi cynyddu'n sylweddol - mae bellach yn cyfrif am tua chwarter y gwariant heb ei ddirprwyo ar ysgolion gan awdurdodau lleol.
“The cost of running existing school buses is around £160 million a year and has significantly increased – it now accounts for about a quarter of non-delegated spending on schools by councils.