M25 widening: Camera tests in Kent and Surrey

M25 Image copyright PA
Image caption The "smart motorway" scheme means the hard shoulder will be used as a permanent traffic lane between Sevenoaks and Redhill

Infra red cameras have been tested on a stretch of the M25 in Kent and Surrey where the motorway is being widened.

The Highways Agency said construction work to convert the hard shoulder into a traffic lane had finished.

Engineers were still testing the technology and the scheme would open soon, spokesman Martin Potts said.

He said he could not give a precise date when the roadworks, which have a 50mph speed limit, would end. Work on the scheme started in May last year.

The "smart motorway" widening scheme, from junctions 5 to 7 between Sevenoaks and Redhill, will see the hard shoulder used as a permanent traffic lane.

Regularly spaced emergency refuge areas have been provided and CCTV cameras installed so the Highways Agency can spot incidents.

'New generation cameras'

Mr Potts said: "The whole length of the motorway with the extra lane will be monitored with cameras throughout.

"The cameras we've got are a new generation of cameras with infra red illumination, which means they're much much better at picking up images of the scene in the night-time where we haven't got road lighting."

He added: "[With] the work we did last night, early indications are that it went very well.

"There's clearly still a bit of back room stuff to make sure everything works smartly. But we're hoping to open shortly."

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