Escape route for Blackwall
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• A £2.2m escape route for over-height lorries is being built at one of London's biggest traffic blackspots, The Blackwell Tunnel, to help keep vehicles moving. Truck drivers repeatedly ignore height restriction signs until they are spotted by detectors almost inside the tunnel, turning automatic traffic lights red and halting hundreds of vehicles_
It can currently take up to an hour to clear the entrance on the Al 02 but the escape ramp should reduce this to two to three minutes, resulting in a saving of around 000,000 a year in reduced journey costs.
The scheme, which will start as soon as possible, will also incorporate a public address system, new road signs and roadside telephones.