Quote:
Originally Posted by Reecemartin
Well as has been mentioned LRT is a very wide term, alot of circles consider Skytrain to be LRT. Inherently the tech is not bad, you can theoretically use it and build a fully automatic grade separated system like Skytrain...
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The problem outside of SSP, is that people simply do not know one rail technology from another, and that's why there are not crowded townhalls demanding a technology change. For all anyone outside of railfans care, everything is a bus, skytrain or a subway. In Vancouver at least. Outside of Vancouver, "Skytrain" only refers to a people mover at an Airport other than in Bangkok and Sydney.
"The Vancouver Skytrain" explicitly refers to the original Expo Line guideway, MK I LIM rolling stock, and Seltrac automated CBTC signalling. Each part of the technology is not dependent on each other. The MK I trains can be run manually like the TTC does, the Seltrac tech can be used on any rail transport, but is mainly used for "complete systems", eg subways, and "upgrading to automated" can be done to any LRT system, but they are typically only in "push to start" mode, and the drivers entire purpose is to put their foot on the deadmans switch.
When people ask about the Skytrain, it is that part that primarily is referenced, or the Millenium Line. Not the Canada Line.
The "RT" in LRT stands for "Rail Transit" while the former ALRT name for the Skytrain is "Rapid Transit". This we get all these confusions.
"LRT" as in Light Rail Transit, is understood to mean any non-commuter rail transit without it's own ROW, but it does have it's own tracks. That's about as simple as it gets. One category is "Street car/Tram" mode which shares the road, and is thus less efficient than an articulated Trolley bus, and is frequency impaired by other vehicles. The other category is "Dedicated ROW" which can only achieve marketed frequency and capacity of there are no grade crossings. Otherwise any claim made by a politician about capacity or frequency is being completely pulled out of thin air.
You can only make a claim to capacity and frequency with a grade-separated ROW. So an Elevated system, here is called "Skytrain" but a more understood term is simply "Metro", or "Subway" if it's major destination is underground.
So when you listen to people who are not railfans speak about "Surrey getting rapid transit". Surrey is not getting rapid transit. That is confusing the "RT" again. For all intents Surrey is getting an expensive bus on rails at the cost of two lanes of traffic.
And as I said before, the real danger here is that the cities ask for cheaply built LRT systems that are super-expensive to operate and then fail to maintain them because they were sold on it being cheaper to build.