And city transport convener Stephen Jenkinson predicted the new, simpler way to pay could boost passenger numbers. “Tap on, Tap off” - or ToTo - is said to be the first scheme of its kind in Scotland.

Edinburgh’s next tram extension could cost up to £2.9 billion, up from an estimate of £2bn early last year. A range of costs released ahead of a consultation on the project, which went live on Monday ...