Trolley-bus trips
John Carson was lucky to find details on tram revenue projections (Letters, 21 June).
I have formally asked the trams operator twice if trolley-buses were considered and have still not received a reply.
If they had been used instead of trams, they would have been running three years ago, along the original route for a fraction of the cost and without any track needed.
Look at Limoges: perfect modern public transport with no fumes and silent running.
Bruce Whitehead
Edinburgh