DMU in the Manchester Victoria bay platforms polluting the ambient atmosphere

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Xenophon PCDGS

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The two heavy-rail bay platforms and the Manchester Metrolink are both under a high new roof but two DMU in the bay platforms were stationary with their engines still running. We were on the nearest of the Manchester Metrolink platforms to those bay platforms today and the smell of diesel fumes was very bad indeed.

Was this matter of diesel fumes extraction ever considered when this new roof was designed?
 
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455driver

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If there is no drivers key in the engines will automatically stop after 10-15 minutes anyway.

Would it be better to stop the engines and then, closer to departure time start them up and rev the t-ts off them to build the main res air back up, causing a lot more air and noise pollution?

If it's 158's they will idle for 15 minutes after the engine stop button has been pressed to allow the air con system to pump down, stopping the engines without doing that wrecks the air con system and they are bad enough already.
 
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Bletchleyite

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Would it be better to stop the engines and then, closer to departure time start them up and rev the t-ts off them to build the main res air back up, causing a lot more air and noise pollution?

Probably, yes. Sprinter-generation DMUs these days seem quite smoky on idle, but much less so (possibly because the turbo has kicked in, thus providing a better air supply to the engine for cleaner combustion) when fully revving. And the air and noise pollution in that situation is brief - a couple of minutes at most.

Paddington absolutely stinks as a result of idling, filthy DMUs. It will be so much nicer when everything is EMU or bi-mode, thus nothing needing its engines running in the station.
 
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