Mr Finish Line
Active Member
Doesn't that tie up valuable platform resources at Union with crews needing to walk the length of the train to drive the train back where it came from?
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GO Transit: Service thread (including extensions)
- Thread starter drum118
- Start date
drum118
Superstar
It has to happen at the end of the line regardless if its Union or Mount Pleasant or X. The amount of time that the train sits there is subject to its own line schedule; other interline schedule; as well how long it takes to off load/load. Then there is the in/out bound traffic that cross that track at Union as well other lines using the same track going the same direction of the train.
smallspy
Senior Member
Yes, but it takes almost as long for a train to travel the length of the long platforms.
A single track has a throughput of 6 trains per hour if they all run through.
With "double berthing" - having two trains stop on the same track and reverse back out - they can get 8 trains per hour per track, 4 in each direction.
Dan
Northern Light
Superstar
Do we not need even more throughput than you note above, for the GO RER service plans? (I'm hearing peak-headway of 5M as a goal)
WB62
Senior Member
jcam
Active Member
I'm curious about the very short track 4th down from the top on the west end? Could they be moving UP from a dedicated station? I can't think of any other west end train in regular service that would be that short....
ARG1
Senior Member
They have publicly stated that the plan for UP is to discontinue it and replace it with a regular service, including moving the station to Union proper.
Monarch Butterfly
Superstar
Current UPX Union Station location is closer to
WB62
Senior Member
The Rogers Skydome is not where most of the UPX passengers are travelling to and from.
Northern Light
Superstar
Others have pointed out, Union is the more likely origin/destination of most UPX passengers.
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As apart from that, replacing UPX with regular GO service, should it properly serve the airport, with mainline track, the potential exists for far greater convenience for passengers coming from the north-west, and for more frequent service, with greater capacity. No reason for sadness with this development.
smallspy
Senior Member
They do. Which is why it's going to be necessary to stock popcorn to see how they plan to implement what they have planned.
(In all seriousness, by my eye it looks like they should be able to attain about 75 moves/hour with that new projected layout.)
Dan
reaperexpress
Senior Member
Yeah but it's a lot cheaper to add platform capacity at the outer ends of lines than it is knock down the skyscrapers next to Union. Hence the need for through running.
smallspy
Senior Member
Except - again - through-running will allow for fewer trains to be served at Union Station.
Dan
RU479
Active Member
And what would that compare to the current Union layout?
reaperexpress
Senior Member
Yes I know you keep saying that.
Terminating certainly allows you to store more trains, but through running can allow for more movement capacity via frequency. It's not just about platform capacity, it's also about conflicts in the adjacent corridor. To achieve very high frequencies you need grade separation, which is not possible when trains need to cross over to return the other way.
There is a reason so many cities have spent billions of euros to turn their termianl stations into through stations.