On 03/12/2015 13:50, Roland Perry wrote:
Holborn is busy for much longer, and has a congestion problem that needs
solving.

The easy solution, in my opinion, is simply to run the escalators a bit
faster, say a 25% increase in speed at rush-hours. Most users then are
commuters so will easily cope. Those in Russia and nearby countries
seem to cope with much higher speeds.

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Clive Page