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Strategic position


My thanks to Ricky Carvel (NCE 22 November) for highlighting World Road Association PIARC's objections to the use of sprinklers in tunnels.

I did not intend to advocate the use of sprinklers for fire safety in tunnels. Sprinklers were quoted as an example of a fire suppression system used in buildings.

What I do advocate is that, in the light of recent disasters, tunnel fire strategies should be re-addressed. A fire suppression system which controls the fire and stops its spread until the fire fighters arrive should be considered.

The situation is that the credibility and viability of tunnels as part of a transport system has been challenged by recent fires. Limiting traffic flow, as proposed for the Mont Blanc tunnel is an example.

Do we have to wait for a UK tunnel fire before this issue is addressed?

Neil McCallum, Haulfryn, 3 Hayden Close, Old Colwyn, Colwyn Bay, Conwy, LL29 9PB

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