By Faye Mayern & Francis Redwood & Rom Preston-Ellis Supermarket giant Aldi and a housing developer have been slammed for not building a pedestrian crossing along a dual carriageway in a ‘ridiculous’ row. Aldi opened in Longwater Retail Park in Costessey, Norfolk, last July despite the expected pedestrian crossing along William Frost Way not yet being built. Pedestrians are still having to navigate temporary barriers on the narrow central reservation as they try to cross the road – nine months on. Aldi previously tried to pull out of installing the crossing, amid disagreements with housing dev…