Decision details

To consider no objections and one of support in connection with the proposed introduction of a 40 mph speed limit on the A350 Trowbridge Road (see Appendix 2).

                                        DECISION MADE

I approve that the proposal to introduce the 40 mph speed limit over the length of the A350 Trowbridge Road shown be implemented as advertised.

This decision was published on 23 February 2021 and will come into force on 3 March 2021.

The introduction of a 40 mph speed limit on the A350 Trowbridge Road to the north of The Mead Roundabout, Westbury, is to encourage and reduce approach speeds into the recently constructed Millbrook Roundabout serving new housing development on the east side of the A350.  Since its construction there have been numerous reported instances of sharp braking due to ‘excess’ speed on both the northbound and southbound A350 approaches to this junction. This is caused in part by the offset nature of the roundabout, with some drivers failing to appreciate the sharpness of the deflection to the right on the northbound approach from Westbury, but equally the degree of offset to the left on the fast, straight, southbound approach.   Mitigation works to date have included additional warning signage on the northbound A350 approach and installation of bollards to visually emphasise the ‘kick-over’ of the carriageway to the right in this direction. The introduction of a 40 mph speed limit is considered an essential part of the ‘package’ of highway safety measures necessary to combat ‘excess’ driver speeds into this roundabout, thus improving safety for all highway users.    

To:

(i)               Implement the proposals as advertised.

(ii)              Not implement the proposals.

(iii)       Implement the proposals with amendments.

Consultations have been undertaken with the Fire Service, Police and Ambulance Service and also with the relevant bus companies, the Town Council and the Local Member.  Advertisements have been posted in the local press and notices were posted in prominent positions at the site (see Appendix 1).