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The Queensferry Crossing road Bridge has More Than 70km of cables

The Queensferry Crossing between Edinburgh and Fife had to because of the danger of ice impact. Bridge authorities, accused of being a "unique set of weather conditions". So, has this Problem a Solution ?

bridges around The World have struggled with snow and ice falling from The Towers , for years, but the modern cable-stayed bridges to collect more possibilities for the ice And Then fall on the vehicles below.

In Denmark, the öresund Bridge has been in the vicinity many times under similar circumstances such as those shut of Scotland £1. 35bn Queensferry Crossing .

Canada Has The Answer ?

The Uddevalla Bridge in Sweden and the second Severn Crossing in South-west England have had similar problems.

In Canada, the Port Mann Bridge in Vancouver developed its own Solution .

thermography shows a white area at The Top of the Queensferry Crossing , That was ice, some of which fell on vehicles on The Bridge

It solves the "neck bands" or metal chains down the length of the suspension cable, in order to clear ice accumulations.

says The System is largely successful, but it relies on the collars properly operated and manually released at The Right time.

Mark Arndt, of the Queensferry Crossing operators Amey, said he was concerned That The Chain , the method of Canada could of the damage 70km of cables on the Scottish Bridge .

the Transport Scotland , the Government Agency responsible for The Crossing , said they were in search of solutions from around The World , but the problems you experienced were specific to The Weather and the special design of the intersection.

you insisted, "best practices from international experts is That human monitoring is The Best available resource for this Problem ".

preheat the cable, a Problem -solver?

Prof Christos Georgakis, from The Department of engineering at Aarhus University in Denmark, BBC Radio Scotland said ' s program: "ice cream is treat a very difficult Problem . "

He said: "We have tried in The Past , many different solutions, coatings, cables, heating systems, even helicopters come and try to blow The Snow and ice with the downwash, but it is a very difficult Problem . "

The ice theme was also had seen in England, on the second Severn Crossing in the South-west,

Prof Georgakis extensive research into the phenomenon of ice formation has been done at The Top of the bridges.

He said That recently, a Solution That was perhaps a little "counter-intuitive" has been proposed.

The idea is to create a cable system That would "way" to keep the ice instead of pushing it.

The Professor said That the commissioning of wire mesh or small plastic Finger would help on the outside cables of The Bridge , "grip" the ice and keep it for longer.

"The purpose is to help melt the ice," he said. "The rays of The Sun will come and the ice will melt, and if it falls, it will fall, as water, or as small pieces of ice, it will not be dangerous. "

Prof Georgakis said, it was an exchange of information between Bridge operators around The World , but it was a very slow process.

"And, of course, everyone in the area wants to have their own Solution That fits you The Best ," he said.

His own research has been said to The Point where he understands what works and what doesn't work, Prof Georgakis, but everyone wanted to try to find your own Solution .

Did The Bridge designers did not realize the ice would be a Problem ?

the question of why he thought That The Bridge designers expect the ice Problem , he said, he would accept, they thought the probability was very low and it was not the need for any kind of comprehensive Solution .

as a result of chunks of ice falling from the suspension cables, forcing The Authorities to close The Bridge .

Graeme Stevenson, was driving over The Bridge when ice shattered his windshield

Scotland 's Transport Secretary Michael Matheson , said sensors would be installed to act on The Bridge , as an early warning of ice accumulations.

Mr Matheson said it was worth it when you consider That The Bridge had to be closed only once in two-and-a-half years, and was much more robust than the old Forth Road Bridge was frequently closed to high winds.

Ice-build-up of this type is not a Problem on The Other Scottish cable-stayed bridges, Erskine on the Clyde and the Kessock, near Inverness.

Mr Matheson also noted That the ice formation was a Problem during the so-called beast to beat from The East , one of the worst weather events in the country, in years.

He said it was a "limited set of circumstances" That led to the Problem .

queensferry, north queensferry

Source of news: bbc.com