Thursday, 10 May 2007
The trams are getting closer
Here's the next installment of the Glenelg to Adelaide tramline extension. This photo was taken where our new tramline passes the Adelaide casino on North Terrace. Bit by bit it is happening.
If the city fathers had put some thought into it we could have had APS, which is ground level current collection or "Alimentation par Sol". This system which ALSTOM have installed in Bordeaux, utilizes 3 rails. The third rail, in the middle of the tracks, serves as the power supply. This rail consists of a succession of 8 metre long powered sections, interspersed by 3 metre neutral sections. The tram as it rolls by, activates the powered section underneath, by touching it with a "frotteur" (skate). Each time no more than two, separated, 8 metre long sections are powered. This means that pedestrians in front of the tram or behind it do not run any risk, since the rail not under the vehicle is always neutral.
Here in Adelaide, however, we will have an overhead power conducter as we have had for the last 100 years.