Erbyn dechrau 2013, bydd y Tasglu’n datblygu argymhellion ar gyfer system dramwy gyflym yn y de-ddwyrain sy’n defnyddio rheilffyrdd, rheilffyrdd ysgafn, bysiau a theithio llesol i ddiwallu anghenion y cyhoedd, busnesau a’r amgylchedd, i gysylltu cymunedau â swyddi ac i adeiladu ar gynlluniau trydaneiddio prif reilffyrdd y De a’r Cymoedd.
The Task Force will develop - by early 2013 - recommendations for a rapid transit system for South East Wales using rail, light rail, bus and active travel which meets the needs of the public, businesses and the environment, links communities and jobs, and builds on the South Wales Main Line and Valley lines rail electrification schemes.