Which is the hottest line on the Tube?
Tube officials have mapped the sweatiest lines on the London Underground network
24 August 2009
TUBE officials have mapped the sweatiest lines on the network, with the Central line identified as the hottest.
The map confirms what many Londoners suspect – the appropriately red-coloured line is one to avoid.
Temperatures on its route through central London hit at least 32C during the survey last month. Oxford Circus was identified as the network’s hottest station.
The Victoria line is another hotspot, never falling below 29C. The map also reveals northbound Bakerloo commuters get hotter as the trains head to Paddington.
Passengers wanting to keep cool should use the District or Circle lines, the map suggests. The Northern line, despite its “misery line” nickname, was also one of the better tracks, even though it is the deepest line, running up to 220ft below ground.
By 2015, air-conditioned trains will make journeys cooler for the District, Circle, Hammersmith & City and Metropolitan lines, which run just below the ground in central London.
But Mayor Boris Johnson has said cooling deeper lines – Piccadilly, Northern, Jubilee, Bakerloo, Victoria, Central and Waterloo & City – was a “considerable challenge”.
The map takes into account efforts made to cool stations down, such as widening ventilation shafts and installing fans. Green Park is one of the hottest Piccadilly line stops, despite a bid to cool it using groundwater.
A solution has yet to be found even though TfL offered a £100,000 prize for anyone coming up with an idea to cool the Tube in 2005. None of the 3,500 ideas submitted has yet been good enough.
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