The effect of congestion charges to be introduced in London next week will spread to the North-East, according to transport groups.

The Freight Transport Association's said that not only did companies based in the region deliver a variety of services to the capital, but the success or failure of the London charge was bound to effect the planning and design of the schemes being considered for Newcastle.

FTA regional policy officer Malcolm Bingham said: "Although Durham is already home to the first congestion charge, the scheme planned for Newcastle is likely to be much more similar to that starting in London next week.

"Newcastle is equally reliant on commercial vehicles to stock the shops, restaurants and bars. "Commercial vehicle operators throughout the North-East will undoubtedly be affected by the London congestion charging scheme -- by having to deliver to the capital and pay the charge themselves.

"This will in turn be passed along the supply chain.

Mr Bingham added: "Ultimately, both the public and industry's commercial vehicle operators need to see hard evidence that existing and proposed payment schemes will result in reduced journey times and less congestion throughout the North-East."

Durham's congestion charging has already been hailed by the city council a huge success after it cut traffic by 90% since it began last October.

Durham County Council introduced the toll so that vehicles are allowed to enter the loop road which leads up to the historic cathedral, but face the £2 charge upon leaving.

But some of the traders on Saddler Street have objected because, they say, it affects their deliveries -- and they are effectively having to pay for deliveries during the times the charge is operational.

It has also been argued the tolls put some people off coming to the city.