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As temperatures soar, which will be London's hottest Tube line?

With temperatures set to soar to uncomfortably high levels today, you'll want to do everything possible to keep cool. That's easier said than done, particularly if you have to travel by Tube.

Credit: PA

So which lines should you try to avoid? City Metric has ranked each line, from the hottest to the coolest. Here are the results, and if you can try to avoid the Central Line.

  • Central
  • Bakerloo
  • Piccadilly
  • Northern
  • Waterloo & City
  • Victoria
  • Jubilee
  • District
  • DLR
  • Circle
  • Hammersmith and City
  • Metropolitan
  • London Overground

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Extreme heat could disrupt trains, Network Rail warns

Tracks can buckle in intense heat Credit: Chris Radburn / PA Archive

With temperatures set to soar into the mid 30s this week, train companies are warning that the heat could interfere with Britain's rail network.

Commuters are being told to check their journeys ahead of time for ristricted services, as the heat is predicted to get so fierce that it could buckle rails.

"As rails are made out of steel, they expand as they heat up and are subject to strong compression," Network Rail said on its website.

"This expansion has to be managed to reduce the risk of track buckling. If the track does buckle, the line must be closed and the track repaired before services can resume, causing considerable disruption."

First Great Western services in the Thames Valley area will be subject to speed restrictions from midday to 8pm today - meaning there will be fewer fast trains.

Hot weather expected to last into the weekend

London is set to sizzle this week, with temperatures remaining high into the weekend. Tomorrow is expected to be the hottest day - with temperatures climbing into the mid-30s.

Temperatures are expected to climb to 35 degrees tomorrow. Credit: PA

Londoners are being urged to take care in the heat - and travel delays are expected.

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