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The Project Control Framework
This framework sets out how we, together with the Department for Transport, manage and deliver major road improvement projects.
A45/A46 Tollbar End Improvement
Purple Option. Underpass at Tollbar End from A45 London Road to A45 Stonebridge Highway plus a new A45/A46 Link
Roundabout reconstruction including 2 bridges with the A45 to A45 passing through at a lower level. New link roads from the A46 to A45 (London Road) and through to Siskin Drive.
The roundabout would encroach on property on either side of the A45 London Road, east of Tollbar Junction. The A45 Stonebridge Highway to A45 London Road would be at a lower level with two new bridges carrying the roundabout above. The A46 to A45 link road would connect with the A45 at a signalised junction and the Middlemarch extension would end at the roundabout on Siskin Drive. This option also requires widening the A45 Stonebridge Highway to dual three lanes and modifications to the Stivichall Roundabout as in Green Option.
| SCHEME OPTION | Traffic | Design / Construction | Environment | |
|---|---|---|---|---|
| PURPLE | Journey time reliability improved Retains most existing movements with some minor diversions Access to Brandon Lane is restricted Pedestrian / Cycle links maintained, albeit with some diversions Flexibility to incorporate bus priorities Provides secondary access to Middlemarch Business Park, Coventry Airport Removes Rowley Road / Siskin Drive roundabout junction | Substantial traffic management would be required throughout construction period Underpass to be constructed with bridges under roundabout Requires substantial diversion of public utilities services Up to 45 metre wide strip of land between A45 London Road and A46 Coventry Eastern Bypass, and between A45 London Road and Siskin Drive would be required Residential and business property affected on both sides of A45 Requires residental and commercial property demolition | Noise | Overall improvement achieved with around 60 less people annoyed by road traffic noise with scheme than without the scheme |
| Air Quality | Significant improvement in air quality at 100 properties with a significant worsening at around 160 properties. Reduces the number of weighted properties, but to a lesser level than Green Option | |||
| Greenhouse Gases | Slightly Higher increase in greenhouse gas emissions compared to Green Option | |||
| Landscape | Moderate negative impact on vegetation along A45 / A46. Overall moderate landscape and visual impact | |||
| Ambience | Reduced stress for some road users by avoiding Tollbar roundabout, but offset by new link road junctions. Link road will provide countryside views. Overall medium impact | |||
| Townscape | Features are typical and not particularly valued. Neutral in impact | |||
| Biodiversity | Slight negative impact on conservation sites including Stonebridge Meadows, River Stowe, Coventry Nature Conservation Site and Warwickshire Ecosite. Potential intermediate negative impact on protected species, but could be minimised by mitigation | |||
| Heritage | Impact on remains of Ryton Bridge, a listed building. Otherwise neutral impact | |||
| Water | Could affect the Rivers Avon, Sowe and Sherbourne - risk of pollution and impact on the floodplain | |||
| Physical Fitness | Additional scope for provision for pedestrian / cyclists at junctions. Overall impact neutral | |||
