by lpetrich
Tom Dunscombe - YouTube has some project-update videos. The most recent one was a month ago.
In that one, you can see a bogie at 0:36. Its four load-bearing wheels are rubber-tired, and it has four smaller positioning wheels with vertical axles. You can see some cable stringing at 1:09, and a trackwork car at 1:27. At 1:32 is the rails and cables up close. The rails are I-beams in the "I" position. The viaduct spans are all box girders - no concrete beams - though the piers are concrete.
Starting at 0:56 is an overpass between the Coliseum BART station and the Coliseum OAC station.
In the September 2013 one, you can see inside the wheelhouse at 0:55 - that's for moving the cables. At 1:26 is apparently a track switch, though not a very clear view of one. At 1:52 is where the two viaduct tracks converge onto a single station track at the BART end.
These two videos also show some of the railcars under construction.
In that one, you can see a bogie at 0:36. Its four load-bearing wheels are rubber-tired, and it has four smaller positioning wheels with vertical axles. You can see some cable stringing at 1:09, and a trackwork car at 1:27. At 1:32 is the rails and cables up close. The rails are I-beams in the "I" position. The viaduct spans are all box girders - no concrete beams - though the piers are concrete.
Starting at 0:56 is an overpass between the Coliseum BART station and the Coliseum OAC station.
In the September 2013 one, you can see inside the wheelhouse at 0:55 - that's for moving the cables. At 1:26 is apparently a track switch, though not a very clear view of one. At 1:52 is where the two viaduct tracks converge onto a single station track at the BART end.
These two videos also show some of the railcars under construction.