Passenger actions caused 430 hours of delays on London transport last year.

Pulling the passenger alarm unnecessarily, not moving down inside the carriage and passengers being ill were among the causes of the delays.

To raise awareness of this, Transport for London (TfL) have launched a competition to write a travel etiquette poem.

The winning poet will see their poem and a cartoon version of themselves feature in a poster campaign placed on Tubes and buses across London.

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London Underground strategy and service development director Gareth Powell said: "Some 400 hours of delays last year could have been avoided with just a few small changes to customer travelling habits.

"Littering, pulling the passenger alarm unnecessarily, holding the doors open and not letting passengers off the train are small actions that cause larger effects on the transport network."

Poems must be four-six lines long and based on how passengers can help avoid disruption to everyone's journeys.

A panel of judges including London Young Poet Laureate Aisling Fahey and a Poetry Society representative will select the most original entry as the winner.

Mr Powell added: "The campaign uses poetry as a way to advise our customers on simple steps they can take to help reduce incidents that delay services and impact upon everyone."

For more information on the competition, visit www.tfl.gov.uk/writeapoem