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California High Speed Rail
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zoom3+1=4 Send message Joined: 30 Nov 03 Posts: 65746 Credit: 55,293,173 RAC: 49 |
Visible signs of Construction, multiple columns are sprouting out of the ground! More signs of progress at the Fresno River Viaduct in Madera. A finished column and the form used to make it. The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's |
ML1 Send message Joined: 25 Nov 01 Posts: 20287 Credit: 7,508,002 RAC: 20 |
Looking at the marks on the concrete, that looks either to be very recent or rather crude. Hope they have allowed good engineering margin for construction, earthquakes, and increased loading... After TWO CENTURIES, we must have the ingenuity for something better than rail for 'high speed' travel... Cue the Elon Musk Hyper Loop? Can we get rid of all the old-school old iron rails hot air?! Keep searchin', Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
bobby Send message Joined: 22 Mar 02 Posts: 2866 Credit: 17,789,109 RAC: 3 |
Looking at the marks on the concrete, that looks either to be very recent or rather crude. Monorail? I think you'll find it's a bit more complicated than that ... |
zoom3+1=4 Send message Joined: 30 Nov 03 Posts: 65746 Credit: 55,293,173 RAC: 49 |
Looking at the marks on the concrete, that looks either to be very recent or rather crude. The contractor did testing prior to making this column, the date on one pic is 11/30/2015, and the concrete looks like it would when recently released from the mold. The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
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rob smith Send message Joined: 7 Mar 03 Posts: 22200 Credit: 416,307,556 RAC: 380 |
Monorail is stil a steel on steel technology, with wheels doing both the load carrying and guidance. In truth most so called monorails are actually twin rail systems, or even more. To break the steel on steel technology you have to look to the exotic such as maglev, or guided air cushion technologies, both of which have no supporting or guiding contact with the infrastructure. They both have high energy demands, but are OK for point to point operations. For both point work (turnouts, crossings etc. are a technological challenge). On the other hand land take tends to be smaller for a given passenger carry rate. I suspect we are going to see steel on steel technology around for a good few years to come, and much of that will be "1435" based. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30650 Credit: 53,134,872 RAC: 32 |
http://www.mercurynews.com/california-high-speed-rail/ci_29424548/san-jose-back-running-early-high-speed-rail California high-speed rail officials are considering junking a 2012 decision to build the first segment from Burbank north into the Central Valley -- and are now seriously studying the possibility of bringing the first stretch of track north to San Jose instead. http://www.fresnobee.com/news/local/high-speed-rail/article58793528.html The threat of massive cost overruns has been a key to arguments by critics who question whether the California High-Speed Rail Authority can deliver a system that connects Los Angeles and San Francisco for “only†$68 billion. Sounds like a project in a lot of trouble, because it has no money, which means cost cutting and that is safety and utility of use cuts. |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30650 Credit: 53,134,872 RAC: 32 |
Now a court challenge http://www.foxnews.com/us/2016/02/07/plagued-by-delays-california-high-speed-rail-heads-back-to-court.html?intcmp=hplnws# Plagued by delays, California high-speed rail heads back to court |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30650 Credit: 53,134,872 RAC: 32 |
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