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What color should the trains be?

14.11.2005

It is desirable that train cars be painted light green.

Experiments conducted at the Technical University of Munich (Germany) showed that such a train seems to be less noisy. The subjects were played at the same volume a recording of the sounds of a passing train, while demonstrating on the screen an image of a train painted with a computer in different colors.

The light green train seemed to be the quietest, the train with white cars (that's how electric trains in Germany are painted) seemed to be a little noisier, and the red cars seemed the noisiest.

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