Irvine Bell (Letters, 20 September) makes some valuable comments (guided buses: better than light rail). I have watched the construction of the successful Croydon Tramlink over the last few years and attended lectures on it. I also suffered, as a pedestrian and as a motorist, the congestion during construction of the street running section.
It has always seemed to me that the utility diversions, which cost about 50% of the total, were unnecessary if, instead of rail running trams powered by electricity, there had been guided buses powered either by electricity (trolley buses! ) or diesel engines.
Bell states that bus service quality can be as good as light rail with all the benefits and apparently no dis-benefits. It this is so, tell those promoting light rail schemes to go for guided buses. I am sorry if this will mean less work for the civil engineering profession!
John M Roe (M), The Red Cow House, Vicarage Hill, Westerham, Kent TN16 1TJ