The residential street in Cardiff that had a quarter of a million car and HGV journeys in one month Residents in Pen-y-Wain Road say the noise and pollution is unbearable with almost 350 cars passing every single hour on average Sign up to FREE email alerts from Wales Online - Subscribe We use your sign-up to provide content in ways you've consented to and to improve our understanding of you. This may include adverts from us and 3rd parties based on our understanding. You can unsubscribe at any time.More info Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice