In preparation to a meeting this evening ... I've been giving this further thought.
A bypass for Melksham?On the cards - a serious proposal for Melksham bypass or relief road to carry traffic from the A350 trunk road near Lacock to rejoin the A350 to the south. It is proposed in order to take through vehicles away from the Beanacre and the northern area of the town, giving them a more efficient journey.
Three options have been suggested - as per this diagram. All include a new link road from the current A350 just to the south of Lacock - instead of sweeping to the right and through Beanacre, the main road would carry on ahead, cross the River Avon, then on across farmland to the A3102 road to the east of Melksham. From there, the options differ.
Option A - shown in red on the diagram - takes traffic along the existing eastern relief road including the section currently under construction to the area of The Spa roundabout, then across (via the A365) to rejoin the A350 at the north end of the Semington Bypass.
Option B - shown in purple on the diagram - carries on beyond the A3102, crosses the A365 Devizes Road out beyond Melksham Oak School, then loops around Bowerhill to joining the A350 Semington Bypass to the north of the Kennet and Avon Canal
Option C - shown in brown on the diagram - also carries on beyond the A3102, crosses the A365 Devizes Road out beyond Melksham Oak School, but the carries on across the Kennet and Avon Canal to rejoin the A350 near the southern end of the Semington Bypass.
There is little doubt that each option listed would cost successively more to build, but would bring a greater reduction in journey time for traffic headed from the M4 motorway and Chippenham to the north to Trowbridge, Westbury and Warminster to the south.
There is also a wider picture too. Should the new road give sufficiently good a journey, it will encourage the further displacement of through traffic that uses the Claverton Bridge in Bath (A46 / A36 route from the M4 to the south coast) onto the A350. It may also suck traffic from the A338 and even A34 routes onto the A350, and offer attractive alternative routes for traffic from Devizes, Frome and the Mendip quarries onto the national trunk road / motorway network.
All three options should reduce traffic through Beanacre and North Melksham. Option A would bring an increase in traffic on the Eastern relief road and into the area between Melksham Town and Bowerhill in the area of The Spa, and depending on new (and currently ongoing) changes in that area may give rise to new congestion and air quality concerns.
Benefits to traffic to and from Melksham itself of options B and C would depend on any junction layouts:
1. Where the bypass leaves the A350 south of Lacock
2. Where the bypass crosses Woodrow Road / Lower Woodrow
3. Where the bypass crosses the A3102 (Calne Road)
4. Where the bypass crosses the A365 (Devizes Road)
5. Where the bypass rejoins the A350 towards the south
1. It is likely that a junction would be provided to allow continued access from Beanacre and the north end of Melksham to the A350 towards Lacock / Chippenham and vice versa. Without such a link, traffic from Chippenham to Beanacre would need to loop right around Melksham, pass though the town centre, or use country lanes on the Corsham side. The case for an exit from the south into Beanacre (and vice versa) is less clear.
2. The lane at Woodrow is heavily used by traffic from East Melksham headed north at present. It is also part of the national cycle way. Whilst no doubt a junction could be build here, it would probably be preferable to take the opportunity to divert the current "rat run" that uses it via the A3102 junction, and take the opportunity to turn Woodrow Road / Lower Woodrow into a Quiet Lane, completing a safe cycling and walking route all the way from Trowbridge via Melksham to Chippenham
3. A junction at the A3102 allowing traffic to leave/join the new bypass (or the end of the bypass if option (A) is taken) would be vital if the new road were to provide any practical benefit to Melksham Town (pulling traffic away from there) and the east of the town (providing a much improved route to Chippenham and north thereof). Allowing traffic from north to east (and vice versa) would pull through traffic away from the town centre.
4. A Junction on the A365 (Devizes Road) near Melksham Oak School could provide easier school access for some, also access to Bowerhill residential and commercial areas from the North, and a route through Sells Green to Devizes. What happens here / what would be useful is very much related to what is or is not provided at the neighbouring crossing of the A3102 junction (3) and whether the new road ends just south of Bowerhill (option B) or carries on across the canal to Semington (option C).
5. The final junction back onto the A350 needs to be South facing. It should probably be designed to allow traffic on and off the A361 at Semington, in both the Devizes and Trowbridge directions. Should option (B) be selected and Junction no. 4 be omitted, there is a strong case for provision to be made for traffic from the north to businesses in Bowerhill and vice versa.
Other considerations
1. The Wilts and Berks Canal from Melksham to Lacock, and public footpaths to the east and south of Melksham should be retained with bridges or subways.
2. There is a good case for a cycle and foot path on the bridge over the River Avon, and a review of other cycling, walking and public transport potential should be undertaken.
3. The new bypass has the potential to encourage wider traffic to the area, and in the light of this our Highways team should be considering capacity and safety to the north at locations such as Lacock traffic lights and around the Chippenham Bypass. Consideration should also be given to traffic between Yarnbrook, Frome and Warminster and how to best serve that without adding pressure within the town of Westbury. A link road alongside the railway from the West Wilts Trading Estate to Frome Market on the A36 has been suggested in the past.
4. Rail rather than road remains the best option for heavy, long distance freight. The perceived need to expand this corridor for road traffic helps to confirm the need to expand it for rail too, and a re-instatement of the second track between Chippenham and Trowbridge would allow for growth quarry traffic, international traffic from Southampton to The Midland and North, as well as a more frequent passenger service to be run along this demonstrably growing corridor. We note that Network Rail has proposed electrification of the railway through Melksham as a core part of its ongoing program.
5. The bypass proposals do just little for Melksham's public transport needs. They mean that buses will not get so congested to the north of the town, and they will psychologically bring the station closer to the town too as the busy road between them gets lets busy. It may also offer an opportunity for additional bus stops to serve the station on both the current A350 and A365 roads which have been impractical in the past due to the volume of traffic through those pinch points.
In concluding, we should be guarded against the "alternative close" - where we are being offered a choice between "A", "B" and "C", and should perhaps be taking a wider look - asking questions such as "Do we actually need any of them" and "Is there a better alternative"?
Various other suggestions have been mooted but are not currently on the table - such as a Western bypass rather than one to the east - we understand this to be a more expensive and difficult option due to a long crossing of the flood plane. It has also been suggested that the A46 and A36 to the west of Bath might be linked by a section of road from the A4 Batheaston Bypass (which already provides the river bridge) to the A36 a few hundred yards away; although an area of great beauty, that concern appears to have been overcome as there is now modern housebuilding going on very close by in the curve of Bathampton Junction.