Definitely Slowertrack!! Supposedly speedy, the Fastrack B takes 28 minutes to amble from Bluewater to Gravesend whereas “normal” service 490 takes just 23 minutes. Whist the 480/490 just gets one colour on the map, the service runs in two distinct sections during the day. 480 runs from Dartford to Gravesend and Riverside Park whilst the 490 starts from Bluewater goes…