Note: this is an interim update as it stood in 2004/5. It awaits latest TSGB data for it to be fully up to date but that is unlikely to change any conclusion.
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The systems for which data is here presented are Docklands, Strathclyde, Manchester, Tyne and Wear, Sheffield, Centro (West Midlands) and Croydon. Detail is in the table appended. It shows:
We have sought fuel consumptions but with little success. However, data from 1990 provided the equivalent of 51 passenger miles per gallon for Tyne and Wear, 55 for Strathclyde. Also data from 2003 for Croydon’s Tramlink provides 92 passenger-miles per gallon (it has phyrister control - using breaking to provide energy for traction). In comparison buses returning 8 miles per gallon (as they may do on rights of way such as these systems enjoy) and containing the average train loads set out in the tabulation, (range 17-50 excluding Docklands) would return 135 to 400 passenger miles per gallon.
We conclude that, with the benefit of hindsight, and of this data, none of these systems would have been built. An alternative may have been bus-ways open to commercial vehicles and to cars at certain times of day. The modern option may be to control congestion by road pricing. Ordinary buses would then no longer suffer delay. That would remove the need for bus lanes or indeed for tram systems.
In contrast the Europeans are famed for trams. However, is it merely a case of the grass seeming greener over there. Whatever the case Terry Mulroy OBE, a doyen of Multi-Modal Studies, said, at an Institution of Civil Engineers meeting held on 21st November 2002, that, "If one asks the Planners in Geneva, Home of the Tram, if they would do it again, they will say quietly, never again – far too expensive". Meanwhile the Grenoble is renewing its tram network after only 10 years.
As for London, in 1949 the trams were seen as an embarrassment to the capital’s post war planners. In that year Lord Latham, chairman of the London Transport Executive delivered a speech outlining the plans for the tramways conversion programme in which he stated “the loss on the trams is about £1,000,000 per year” equivalent to £20,000,000 at today’s prices. Now we have Ken Livingstone’s plan to bring some of them back.
Against that background we encourage those considering such systems, and the Treasury, to do careful sums before spending the hundred or so million pounds likely to be required for a few tens of miles of route.