Quote:
Originally Posted by allan_kuan
Actually I wonder... would it be more cost effective to have one of the two theoretical tubes of the Millennium Line extension to UBC larger to accommodate a standard freight car, and have a switch station beside VCC-Clark where the load gets transferred between CN / CP and the electric railway?
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The problem is that the standard freight car still needs a locomotive (electric of course) to pull it (or them) around.
If you build only one tube large enough for standard railway cars, it could be used for both EB and WB freight traffic. If the freight traffic and passenger traffic in the tube are in the same direction (ie: to UBC), there might not be a problem. However, when the the freight traffic is 'wrong railing' (ie: from UBC) the tube will have to be cleared of passenger traffic while the standard railway cars are 'wrong railing' in the tube from UBC to False Creek Flats. If both EB and WB tubes are built to handle larger freight cars this becomes less of an issue.
However, the extra cost of building larger-diameter tubes to accommodate standard freight cars is likely to be greater than the cost of rebuilding rebuilding some of the end-of-life original Expo86 passenger cars as freight cars. By reusing the original Expo86 cars as freight cars, every car already has the LIM motors and automated controls needed to move it on the SkyTrain tracks without needing an operator. It may be possible to get by with only a dozen or so SkyTrain freight cars, and the rest of the original Expo86 cars can be retired (scrapped) at the end of their shelf life.
It may be possible to have a trans-shipping centre at UBC so the automated freight cars can come & go whenever they can be slotted in between the passenger trains. The trans-shipping centre would be a branch off the main SkyTrain line so the freight cars can be unloaded & loaded without interfering with the passenger car traffic. Because they are automated, when a freight car is ready to go, it can be sent over the SkyTrain line at any time of day (excepting the rush hours).
I should do some more thinking about this.