What happens to the traffic?
A significant concern of those who made representations in the first consultation was related to the effect the proposed changes could have on the traffic movements in the town centre and surrounding residential areas.
Computerised traffic modelling has been undertaken using various software packages which have been approved by the Department for Transport and have a proven reliability. The modelling packages used were "Saturn" which is used to examine the strategic changes to a highway network over a large area and "Paramics" which allows a more localised detailed assessment of key locations.
Detailed copies of the modelling reports are included in the Background Information pages; however for an interpretation of these, the Maps listed below show the areas we have modelled and include morning (AM) and evening (PM) peak traffic levels passing through the junctions. They do not represent any queuing that occurs at these peak times:
- Current level of traffic. (shown coloured in Black on the Maps referred to below)
- Future traffic levels in 2026 without the proposed changes (shown coloured Blue on the Maps referred to below)
- Future traffic levels in 2026 with the proposed changes (shown coloured Red on the Maps referred to below)
An overview plan shows the areas covered by each of the individual, more detailed Maps.
Town Centre Map 1 morning peak hour traffic flow and
Town Centre Map 1 evening peak hour traffic flow
Albion Street, Bath Road, "Boots Corner", Clarence Parade, Clarence Street, Gloucester Place, North Street, Oriel Road, Rodney Road, Royal Well Road, Sherborne Place, St, Johns Avenue , Trafalgar Street , Vittoria Walk, Winchcombe Street
South West Map 2 morning peak hour traffic flow and
South West Map 2 evening peak hour traffic flow
Andover Road, Bayshill Road, Christ Church Road, Lansdown Road, Montpellier Walk, St. Georges Road, Suffolk Square
South East Map 3 morning peak hour traffic flow and
South East Map 3 evening peak hour traffic flow
Bath Road, College Road, High Street, Hewlett Road, London Road, Old Bath Road, Sandford Mill Road, Sandford Road, St. Lukes Road, Thirlestaine Road
North East Map 4 morning peak hour traffic flow and
North East Map 4 evening peak hour traffic flow
All Saints Road, Fairview Road, Hewlett Road, North Place, North Street, Prestbury Road, St. Margarets Road, St Pauls Road, Winchcombe Street
North West Map 5 morning peak hour traffic flow and
North West Map 5 evening peak hour traffic flow
Gloucester Road, High Street, Honeybourne Way, St. Georges Road, St. Pauls Road, Swindon Road, Tewkesbury Road
Speed band plots
Below are files which contain speed band network plots for the 2010 current level of traffic, 2026 without the proposed changes and 2026 with the proposed changes. They indicate the effect on traffic speeds during the morning and evening peak hours and how proceeding with the scheme, or not, may effect these speeds.