Roedd tîm y prosiect hefyd yn ymwybodol,  cyn y digwyddiad hwn, bod problem barhaus   o ran traffig yn ciwio tua'r de yn ystod yr amser brig ar yr A467 (Forge Road). Wedi agor y gylchfan newydd, cynhaliodd Costain arolwg cychwynnol o'r traffig ym mis Rhagfyr, 2018. Edrychwyd ar y canlyniadau a chyflwynwyd newidiadau bychain i amseru y goleuadau traffig. Yn anffodus, wnaeth hyn ddim datrys y mater, a bu i'r traffig barhau mewn ciw ar yr A467 tua'r de yn ystod oriau brig y bore.
The project team are also aware that prior to this incident there was an on-going issue with regards to traffic queuing southbound in the morning peak on the A467 (Forge Road). Following the opening of the new roundabout Costain undertook an initial traffic survey in December, 2018. The results were interrogated and minor changes introduced to traffic signal timings. Unfortunately this has not addressed the issue with traffic continuing to queue on the southbound arm of the A467 in the AM peak.