[PRCo] Re: Lisbon in the 1990s

[robert netzlof]

--- On Thu, 2/24/11, Bill Robb <bill937ca at yahoo.ca> wrote:

What is the track gauge? Looks to me to be rather narrow, maybe 1 meter?

> Lisboa may be the only remaining place in the world (not
> sure ... welcome the 
> correction) where you can ride a counter-balance trolley
> line.  They are called 
> Elvador or Elvadoros in Portuguese.  There are three in
> Lisboa, the Gloria, the 
> Lavra and the Bica. 

I'm puzzled. I see two overhead wires and two pantographs. But there also seems to be a slot in the pavement between the rails. Is this some sort of 3-phase system with two phases on the overhead and the third picked up by a plow? 

Bob Netzlof a/k/a Sweet Old Bob