In the background

[gordon]

Originally Posted by Bill Murray

Hi Chis:

This may be "Urban Legend" but I have also read that the Swiss used the rounded canvas tops to be able to navigate the"Upside down "U" shaped" tunnels found on the roads in the Swiss Alps.

Bill

Almost, but not quite, spot on Bill. I was told the standard size / height / roof profile is so that the trucks can be freighted through the RAIL tunnels in Switzerland. The road tunnels have clearance, but you'll find on a low bed flatcar the trucks all conform to the standard rail loading / clearance guage.

Gordon