On 20 Dez., 11:27, Basil Jet wrote:
On 2011\12\20 08:57, Graham Harrison wrote:

I can't find a tram related newsgroup.

I've sometimes wondered why modern tramcar makers don't make double
deckers. Yes, modern artics swallow lots of people quickly but they also
take up a lot of space. A double deck artic (with connections at both
levels)

How would the upper floor connection cope with vertical curves?

Do the same as on double-deck trains and provide a gangway connection
on one level only?