LONDON — A London architectural firm has come up with a radical solution to solve the problems of the Underground's most-delayed line, the Circle line — replace it with a high-speed moving walkway, reported the Evening Standard.

The team, which developed the idea in response to a challenge from think tank for ideas to improve daily life in the capital, claim that a three-lane "travelator" through the line’s 17-mile circuit could shorten journey times, boost capacity threefold and improve health, the report said.

Passengers would step from “feeder” walkways moving at 3mph onto a yellow “slow lane” going at the same speed through stations but accelerating to 6mph and then 9mph in lit tunnels. There would also be a “middle lane," coloured orange, with a top speed of 12mph, and a 15mph red “fast lane,” according to the Evening Standard.

For the full story, click here.