In the west of the Netherlands the A12 motorway is being rebuilt. Part of the rebuild will require a cycle tunnel under the motorway.
The Fietskathedraal is being built to ensure a pleasant route for cyclists. It's to be an underpass which is 53 metres long, 16 metres wide and 6.5 metres high - roomy and as a result with a good degree of social safety.
One of the unusual things being done to make the tunnel as attractive as possible to cyclists is an unusual method of lighting. Blue LED lighting will be used to make the tunnel the tunnel look even more roomy.
The Fietskathedraal is to be one of the largest corrugated steel constructions in Europe. The cycle route is to be open by around the end of this year followed by the road in October next year.
This is far from the cheapest option, but who said that maintaining and growing the world's highest cycling rate was cheap ?
Details of the fietskathedraal came from here and here
Why this isn't so important as you might think Exceptional infrastructure like this is always interesting to see, but what causes people to cycle in large numbers is the very tight network of everyday, but high quality, cycle routes.