Mae dull newydd o ddatblygu, arfarnu a gwerthuso ymyraethau trafnidiaeth yng Nghymru sy'n cefnogi lles pobl a'r blaned yn well wedi'i lansio gan Lywodraeth Cymru.
A fresh approach to the development, appraisal and evaluation of transport interventions in Wales which better supports the wellbeing of people and the planet has been launched.