Traffic installation

A traffic installation, having

• a) at least two traffic routes arranged one above the other,
• b) which each comprise at least one traffic area,
• c) which traffic area is completely enclosed at least over a certain length,
• d) the enclosure having at least one transparent element allowing a view out of the enclosure
• characterized
• e) in that at least one traffic route is assigned at least one device for supplying fresh air and/or for extracting exhaust air,
• f) in that the transparent element of the enclosure of the traffic area of this traffic route has two spaced-apart, transparent plates, between which at least one hollow space is formed,
• g) in that the transparent element is arranged with a first side in a first strip with a U-shaped cross-sectional profile,
• h) the first strip having in a limb of the U-shaped cross-sectional profile that is facing the traffic area at least one opening to an inner space of the first strip that is connected to the hollow space of the transparent element,
• i) in that the transparent element is arranged with a second side in a second strip with a U-shaped or double U-shaped cross-sectional profile,
• j) the second strip having an inner space, which extends along the second strip and is connected to the hollow space of the transparent element,
• k) the opening of the first strip, the inner space of the first strip, the hollow space of the transparent element and the inner space of the second strip forming a channel,
• l) the channel being connected to the device for supplying fresh air and/or for extracting exhaust air.