Mae Ken Skates, yr Ysgrifennydd Trafnidiaeth, wedi cyhoeddi rhaglen waith a gweithgareddau i wella'r dirwedd ac ansawdd amgylcheddol y rhwydwaith trafnidiaeth trefol a gwledig.
Transport Secretary Ken Skates has announced a programme of work and activities to improve the landscape and environmental quality of the urban and rural transport network.