43003 Isambard Kingdom Brunel runs along the great man's 'Billiard Table' Great Western Mainline at Uffington on 28 October 2014 with the 1A11 09:30 Bristol Temple Meads to Paddington First Great Western service. With nearly four decades of loyal service on the route, the HSTs have without doubt been the most successful design of passenger train ever to run in this country.