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A11 Roudham Heath to Attleborough Dualling
A11 Roudham Heath - Attleborough Improvements
1. Introduction
1.1 This report outlines the results of traffic surveys carried out to monitor the effects of the A11 Roudham Heath to Attleborough Improvement scheme. The A11 forms part of the core National Route, linking London, Cambridge and the northern part of East Anglia. The Roudham Heath to Attleborough Improvement Scheme is one of three schemes on the A11 south of Norwich. There is also to be a bypass of Attleborough and an improvement scheme between Fiveways and Thetford. The three schemes are illustrated in Figure 1.1. below. The Roudham Heath to Attleborough Improvement Scheme, which is 9.9km (6.2 miles) in length, bridges the missing link of dual carriageway between Roudham Heath and Attleborough. The improvements included within the scheme are illustrated in Figure 1.2. overleaf.
1.2 The new carriageway of the A11 between Roudham Heath and Attleborough was officially opened on the 19th March 2003. 'Before' and 'After' traffic data for the area around the scheme was collected immediately prior to and after the opening date in order to prepare a Traffic Impact Study (TIS) on the effects of the scheme opening. In addition, Highways Agency count sites have been used to evaluate the effects of the A11 Roudham Heath to Attleborough Improvements on strategic routeing patterns in the local and wider area.
1.3 Section 2 of this report discusses the data collected as part of the TIS study. Sections 3 and 4 summarise the main results and conclusions, respectively.
Figure 1.1 (91KB PDF)
Figure 1.2 (80KB PDF)
Figure 1.1 - The Three A11 Improvement Schemes
Figure 1.2 - Details of the A11 Roudham Heath to Attleborough Improvements
