First Great Western has announced that planned engineering work will take place between Bristol Temple Meads and Trowbridge via Bath Spa and Bradford-on-Avon.
Trains between Cardiff Central / Bristol Temple Meads / Swindon and Westbury / Weymouth / Portsmouth Harbour / Brighton will be operating to a revised timetable. Most trains will be diverted between Bristol Temple Meads and Westbury via Swindon and Chippenham extending journey times.
Buses will run between Bristol Temple Meads and Trowbridge.
A revised timetable will also be in operation via Melksham.
Please check journey times before travelling.