The only similarity between utopia and the UK is the U!mattvince wrote:That there is the rub. I am personally of the opinion that we cannot afford to rest on our laurels regarding the environmental impact of rail - particularly on marginal routes such as those operated by Northern Rail. The fact is, in environmental terms, the railways have to move to a zero-emissions (or near as is possible) position within the next few decades - the Pacer and Sprinter replacement presents a once-in-a-generation opportunity to move towards that goal. Conventional DMUs simply aren't good enough in the age of Climate Change awareness - we need a unit which helps reduce our dependancy on oil consumption (and resulting pollution), thereby also reducing operating costs. The up-front price is not critical - the cost of operating them from introduction to ~2040 is.CSRZiyang wrote:Don't be misled. This is a conventional DMU
I absolutely share your point of view that we need to drive towards more environmentally friendly transport. However, until such time as the planet stops being controlled by the oil companies, and we get some engineers and scientists in positions of politcial power (there is currently only one in the top 24 politicians in the UK government, Margeret Beckett, and she presides over the foreign office!), it simply will not happen.
I used to agree that more lines should be electrified and that would give us more environmentally friendly trains. However, in a recently published report, commissioned by the ORR, comparing emissions from rail to emissions from road, it came to light the following: 1/ more CO2 is emitted to the atmosphere to generate power for electric traction than is emitted by all diesel traction; 2/ diesel powered passenger trains emit 41 grammes of CO2 per passenger km, compared with 56 grammes per passenger km for electric passenger trains 3/ the production of power for electric traction emits 1.1 kilotonnes of volatile organic compounds (VOCs) annually compared to 0.1 kilotonnes by diesel traction and 4/ the production of power for electric traction emits 5.0 kilotonnes of Sulphur Dioxide annually, compared to 1.0 kilotonnes by diesel traction.
There is no simple answer to the environment issue, but one fact is certain; if we wait around for a great technology to surface, all the Pacers will have been scrapped and all the lines closed, because of a shortage of traction.... the outcome of that, we'll all be driving our cars instead, emitting three times as much CO2 per passenger km as a conventional diesel multiple unit.