Haverfordwest is on the main A40 [wiki=59ead8d1e124ccfb79f3ace06f43e703]London[/wiki] to [wiki=9b3c2b92ed21715499caa4a4c7809e68]Fishguard[/wiki] trunk road.
Haverfordwest is served by trains on the West Wales Line from [wiki=013d5e8c67e9155030c74930aaf5be33]Swansea[/wiki] to [wiki=d20c438cafbce2758a29b864cb17f018]Milford Haven[/wiki], operated by Arriva Trains Wales [http://www.arrivatrainswales.co.uk/]