Yn sgil yr astudiaeth, gwelwyd bod yna achos cryf dros roi pecyn o fesurau ar waith ar yr A40, yn ogystal a chynllun Llanddewi Felffre i Benblewyn yr A40, er mwyn gwella’r traffig rhwng Sanclêr a Hwlffordd.
The study also found that there was a strong case for bringing forward a package of measures on the A40, in addition to the A40 Llanddewi Velfrey to Penblewin scheme, to improve traffic conditions between St Clears and Haverfordwest.