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The National Traffic Control Centre collects real-time information on road conditions.
The Project Control Framework
On 1st April 2008 we launched the Project Control Framework. The Framework sets out how we, together with the Department for Transport, manage and deliver major improvement projects.
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Traffic Impact Study
4. Conclusion
4.1 The traffic data collected as part of this Traffic Impact Study demonstrates that the new A43 (T) Silverstone Bypass, which officially opened on 18th September 2002, carries around 28,000 - 30,000 vehicles per day (on an average weekday). Traffic count data, post scheme opening in September, shows very low traffic volumes in Silverstone and Syresham, clearly indicating that the scheme has been successful in routeing over 24,000 vehicles away from these villages.
4.2 It is apparent that the A43 (T) scheme has drawn additional traffic into the corridor, mainly from parallel routes in Northamptonshire to take advantage of time savings on the improved A43 route between the M40 and A5 at Towcester. The results of traffic surveys suggest that this additional traffic volume is some 2 - 3,000 vehicles per day (based on September 2002 data).
4.3 Traffic flows on a County B-road, the B4524, have also shown a significant increase following scheme opening of 800 vehicles per day, which represents a 30% increase in daily traffic. This is most likely related to improved links for traffic using the B4525 joining the A43 (T) at Syresham, following construction of a grade separated junction, as part of the highway scheme.
4.4 A reduction of traffic on three A-roads routes in Northamptonshire has been observed following scheme opening, for example a decrease of 570 vehicles was shown on the A361, a decrease of 600 vehicles per day on the A422 and a reduction of 150 vehicles on the A413. This represents around half (1,300 vehicles) of the additional traffic using the A43 (T) route, the remainder of which is expected to be as a result of changes to long distance movements re-routeing from other strategic motorway and trunk road routes.
4.5 Journey time data suggests that time savings of up to 10 minutes are being forecast for journeys along the A43 following scheme improvements to the trunk road.
4.6 The One Year "After" Count for this scheme's Post Opening Project Evaluation will be undertaken in September 2003.
