 A single-carriageway road through the villages of Mottram in Longdendale, Hollingworth and Tintwistle and through the Peak District National Park, it is used by a relatively large number of heavy goods vehicles.Supporters of the scheme say that the A628 is one of the most congested A-road routes in the country, with high volumes of traffic (including HGVs) using a road which is totally unsuitable for the volume and nature of traffic it carries and that there is no viable alternative to a bypass.A survey in 2010 found that the junction of the A57 and M67 was the most congested in Manchester.