YYCguy
Active Member
I really did try and read the last page’s comments thoroughly so I didn’t have to ask, but I just can’t find a previous reference to “CBTC”, so I have to foolishly admit that I don’t know what “CBTC” is. I’m sorry.
Green Line LRT | ?m | ?s | Calgary Transit
- Thread starter Surrealplaces
- Start date
darwink
Senior Member
Communication based train control is a standard for allowing the communication of train location at high precision, that can enable various train control systems, such as moving block in many contexts. A block is an area that one train can be in that a train control system will limit a second train from entering.
An intensive fixed block (like a block every 100 m or so) system can look very much like a moving block system, but at much higher infrastructure cost.
A modern moving block system to avoid the necessary infrastructure of fixed blocks requires that the signalling system can order trains to stop, and the train will then stop automatically, no matter where it is, instead of only at the start of the next fixed block.
The implementation is where the difficulty is. Edmonton tried to go too light on the infrastructure side, and ended up with trains that couldn't determine with precision where they were, as the system depended on counting wheel rotations, without a system to reliably reset location data (which can be as simple as cameras and QR codes, or RFID tags and readers).
Communications-based train control - Wikipedia
YYCguy
Active Member
Thank you Darwink! 
JustDaveGray
New Member
Appears an event is likely taking place at Shepard soon. A tent is up with signs for Green Line event parking only.
Edit: Likely for KLS to begin the site work as mentioned in this release from GL - https://www.calgary.ca/green-line/g...-future-maintenance-and-storage-facility.html
Edit: Likely for KLS to begin the site work as mentioned in this release from GL - https://www.calgary.ca/green-line/g...-future-maintenance-and-storage-facility.html
outoftheice
Active Member
Official ground breaking ceremony for the Green Line is tomorrow so that is likely what the signs you are seeing are referencing. Construction on the maintenance and storage facility and the Barlow Trail bridge are set to kick off immediately with contracts already awarded for them.
zzkwilliamcanada
Active Member
Groundbreaking ahead for Calgary's Green Line LRT
After years of back-and-forth, and even an outright cancellation, ground will officially break on Calgary's Green Line LRT project Thursday.
calgary.citynews.ca
whatchyyc
Active Member
The Urbos mockup was loaded onto a flatbed two days ago at Anderson Garage and is presumably now over by the Shepard site for the groundbreaking:
whatchyyc
Active Member
YYCALGARY
New Member
I want to go on it. When will the public have the chance to view it?
whatchyyc
Active Member
When it originally arrived, the city said there were plans to display it for the public in the summer but I guess in the time between the final design review being completed on the LRV and the whole provincial intervention there wasn't a chance to. Hopefully they put it out this summer