Nes hynny, bydd system goleuadau traffig dros dro yn cael ei gosod i ddarparu mwy o amser 'golau gwyrdd' ar gyfer yr A494, fydd yn gwella dibynadwyedd a llif y traffig.
Until then, an interim traffic signals system has been set up which provides an additional green time interval for the A494, and will improve reliability and traffic flow.