Trivia: Most consistent timetable?

[HMS Ark Royal]

Hull-York has not changed for a good many years

 

[Westerner]

Slough to Windsor, every 4min unless "rush" hour. Trip takes 5min.

 

[higthomas]

Slough to Windsor, every 4min unless "rush" hour. Trip takes 5min.

Eh, it's every 20??

 

[PHILIPE]

Cardiff Queen St to Cardiff Bay every 12 minutes all through the day.

 

[Westerner]

Indeed every 20 min!! When you drive them you tend to have 4 min turnaround, hence my mistake, hehehe.

 

[12CSVT]

Euston - Watford locals have departed Euston at 17, 37 and 57 past the hour for well over 30 years, when class 501s were still in service.