Quote:
Originally Posted by lrt's friend
I would say that the comparison with Kennedy is more appropriate than with Bloor and Yonge because Bayview is a terminal station for the Trillium Line. Everybody has to transfer and if it is successful, at least 75% will be going downtown. If it is not successful at moving passengers downtown (which is the current case), then we have screwed up.
My understanding is that situation at Bloor and Yonge is highly undesirable because of train congestion. The argument has been made that trains offer predictability which allows you to plan your trip. If trains are overloaded, then this goes out the window. There is no question that the Confederation Line will be at peak passenger loads at Bayview so this is where train overloading is most likely to happen.
Regardless, the Bayview comment was only part of my original comment that indicated that passengers will sometimes have to take 4 transit vehicles to reach downtown. This is guaranteed to have hiccups and for the size of the city of Ottawa, it is ridiculous to expect passengers to endure this on a day to day basis.
The further problem with current plan is that it will be so difficult to double track that every other possibility will be implemented first. Can you imagine what would happen if a double car DMU arrived at Bayview station with 500 passengers on it?
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The Trillium line is not expected to exceed capacity until 2030. Furthermore, a double DMU arriving at Bayview will also discharge passengers destined to Tunny's Pasture. Not all passengers on the Confederation line travelling east will go downtown, leaving room for northbound passengers travelling east. Even if the Trillium line DMU is full, people discharging from the Confederation line will only have to wait a maximum of 9 minutes for the next train. Depending upon scheduling the maximum wait time could be far less than 9 minutes.
It will not be difficult to double track the Trillium line. South of The Rideau River there are no obstacles to double tracking with the exception Heron and Walkley Road bridges. These can be done with rapid replacement techniques as there ia substantial vacant land on or near the right of way.
If a rail/rail grade separation is required by Via Rail at the Ellwood Interlocking then a detour can be built along with the technique used on Belfast Rd entrance to the maintenance yard under Via Rail tracks.
The bridge over the Rideau River can be expanded without any interruption of service by installing the girders at night after the pier extensions have been completed.
The obstacle to tunnelling under Dows Lake is financial not technical. The tunnel could be done with the use of coffer dams and then cut and cover or by boring. It is likely there will be disruption expanding the cut to the tunnel portal from Carling station.
The replacement of the Carling Ave bridge may require a temporary detour and or lane closures while work is completed.
From Carling to Gladstone most of the trench can be expanded without blasting by drilling and excavating with an excavator at nighttime. The Hwy 417 bridge over the tracks may be okay depending upon the distance between the existing bridge pillars. Otherwise this bridge will require some major work resulting in lane closures as lanes are closed to replace pillars and girders.
To double track from Gladstone to Bayview is not an issue at all.
The work has to be done in stages over 10 to 15 years to minimize disruption to O-Train schedules but it is not unrealistic. Clearly from the current expansion the City can only manage one part at a time.