On 20/12/2011 10:27, PeterFox wrote:
I've sometimes wondered why modern tramcar makers don't make double
deckers.
Suggestions:
(1) Do you need two bods to 'police' both decks when one will do for an
artic.

One always did in the past, now we have none anyway.


(2) With tightly knotted streets and high peak demand such as you would
get in say for example Dundee when the mill shifts ended, the smaller
footprint would be desirable. These conditions have largely gone.

Most UK cities still use double decker buses to get morer capacity in a
given footprint, same would apply to trams.


(3) If you want a tunnel for your trams to burrow through the city
centre or just do dive-unders you're adding to the civil engineering costs.

I've never been convinced that premetro style tram tunnels are that good
an idea. Surely you want your high quality urban transport to be
prominently visible and easily accesible.


--
Graeme Wall
This account not read, substitute trains for rail.
Railway Miscellany at http://www.greywall.demon.co.uk/rail