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Photographer's Note

Just back from holidays in Scandinavia and bringing back Another postcard for Greg... Because I liked his palet of colours so much that I wanted to give him the Blue & Yellow lights of the world's longest tunnel of Laerdal - 24.5 km

* Why these stunning colours in that huge tunnel?

From BBC news: If the spacing between the tunnel lights matches the resting rhythm of the heart it can induce a hypnotic effect.
Gunnar Jenssen, behavioural scientist, suggested a number of ideas and conducted tests and computer simulations on volunteers to find out which worked best.
As a result Laerdal was built in four sections with three caverns or "mountain halls" in between.
"Because it was in sections, people did not feel that it was so long," said Mr Gunnar Lotsberg who helped design Laerdal and is one of the world's foremost authorities on road tunnel design
Each cavern has also been built with special lighting - yellow at the bottom and blue at the top - which is designed to simulate the sunrise.
The driver simulator tests suggested these "dawns" refreshed the drivers as they passed through the caverns.
Motorists are also able to do a U-turn at each of the mountain halls if, for example they are running low on fuel.
The caverns also have laybys to allow drivers to pull over and have a rest.

Laerdal is now seen as the role model for tunnel designers worldwide.

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Technic: Cropped out a part of our car-window, adjusted contrast & brightness, added a frame.
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* * Yesterday I noticed that I posted the wrong picture of two I've made. In fact the previous was meant to be sent as a WS to make the difference of a few seconds, but it was too late to make the change... :o)

besir1, quetzal, starbug, Polka, leiju, oochappan, AdrianW, dolin, wautersw has marked this note useful

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Additional Photos by Viviane Faguay (Porteplume) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1713 W: 610 N: 547] (3393)
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