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Old Posted Dec 14, 2018, 7:08 AM
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Quote:
Originally Posted by waves View Post
Sorry I think I meant 1:5 ratio not 1:4. Lonsdale Expo could definitely be more frequent than SeaBus - see the scenarios below:


2min Expo Headway with 80% to Downtown
Northbound @ CB platform 2: Headway of 2min: Waterfront, Waterfront, Waterfront, Waterfront, 23rd St North Shore-from Langley, repeat...
Northbound @ 1st: Headway of 5min: 23rd St North Shore (from Langley & CB platform 2), 23rd St North Shore (from CB platform 3), repeat...
Southbound @ LQuay: Headway of 5min: CB, Langley, repeat...

90 Expo Headway with 83% to Downtown
Northbound @ CB: Headway of 90 sec: Waterfront, Waterfront, Waterfront, Waterfront, Waterfront, 23rd St North Shore-from Langley, repeat...
Northbound @ 1st: Headway of 4.5min: 23rd St North Shore (from Langley & CB platform 2), 23rd St North Shore (from CB platform 3), repeat...
Southbound @LQuay: Headway of 4.5min: CB, Langley, repeat...
OR
Northbound @ 1st: Headway of 3min: 23rd St North Shore (from Langley & CB platform 2), 23rd St North Shore (from CB platform 3), 23rd St North Shore (from CB platform 3), repeat...
Southbound @LQuay: Headway of 3min: CB, CB, Langley, repeat...
I don't follow. The maximum headway is 75 seconds; a Hastings > Park Royal > Hastings > Park Royal > Lonsdale configuration means a 375 second (6 1/4 minute) cycle where as soon as the northbound Hastings train leaves Commercial, it's 150 seconds (2 1/2 minutes) until the next one, then 225 seconds (3 3/4 minutes), then the cycle resets. That averages out to three minutes per train for both main branches - also, the existing frequency for the Canada Line, which currently resembles a tin of sardines at rush hour.

Six minutes for Lonsdale is technically an improvement over the SeaBus' ten, but why do that when it's possible to separate all of them into individual lines, and get three minutes or less for each?

Quote:
Originally Posted by waves View Post
One alternative is to have a third platform & forth platform at Waterfront, side by side with the Expo and have the Hastings Line continue towards the First Narrows. Or have the First Narrows run down the center of Georgia and have its terminus at the Library with a transfer at Vancouver City Center - just keep the Hastings and Expo one continuous flow (trains run from Langley straight through waterfront all the way to the end of the Hastings Line, then back).
Either of those sound good too. All I know is that this plan would have the Expo doing too many things at once.

Last edited by Migrant_Coconut; Dec 14, 2018 at 7:19 AM.
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