[drum118]

Getting back on topic...

https://twitter.com/x/status/1296869723653705730

I shot them over a week ago and are shown above. The west side was more advanced than the east side when I shot them. The west side piers are now been form. Still have to build the bridge support on the north/south side before you can start the frame support for protect over 407.

By the time the extension is built to Brampton Downtown, most of the board will be gone and never have a chance to ride it. Too many red flags, considering you only need to dust off the old EA and update it under TRAP in 6 months.

During this time, an RFP put out for the designing of the extension that would close around the EA approval. 1 year to produce the tender package with final design work or go to the PP3 market for the extension. 6-12 months for bidding on it. 2 years to construct the line and be open.

We should be riding the line by 2025. At the rate of things, it could be 2040+ not 2030.

If it goes to the PP3 market, the current team building the line could end up not been low bidder. Going to the PP3 market will have to exclude the operation of the line and for maintenance only.

 

[robmausser]

I may have missed the boat, but has there been any discussion of using battery technology to make the Brampton section wire-free? This is surely going to be a requirement for parts of the Gatineau-Ottawa link that is being planned to the northeast.

Trains have already been procured and are being built. So, no. Unless Brampton wants to buy a whole fleet of new trains.

 

[Transportfan]

Getting back on topic...

https://twitter.com/x/status/1296869723653705730

Are the LRT tracks running on a separate ROW across the 407?

 

[Allandale25]

^ I think the bridge is being widened. Update: from the June 2017 drawings from the Metrolinx's Hurontario LRT page.

 

[Tuscani01]

Are the LRT tracks running on a separate ROW across the 407?

^ I think the bridge is being widened. If you look at Metrolinx's Hurontario LRT page the latest track plans should be there. For context, here's the existing bridge.

Drum mentioned the 407 piers are for the new 407 on ramp. I guess with the on-ramp moved off the main bridge, the middle lane gets freed up for transit down the centre.

 

[Allandale25]

^ Yes looks like it. The drawing I posted above doesn't show the existing layer.

 

[drum118]

407 bridge that will have a guide-way for the LRT

 

[Allandale25]

Are the LRT tracks running on a separate ROW across the 407?

407 bridge that will have a guide-way for the LRT

Just for complete clarity for @Transportfan 's question, the guideway will be in the centre, correct? So the construction in the 407 median is to widen the bridge for the car lanes/ramp lanes, right? I didn't have a chance to measure the existing bridge width and compare it to the drawing posted above.

 

[Monarch Butterfly]

Just for complete clarity for @Transportfan 's question, the guideway will be in the centre, correct? So the construction in the 407 median is to widen the bridge for the car lanes/ramp lanes, right? I didn't have a chance to measure the existing bridge width and compare it to the drawing posted above.

Also depends upon what the actual width of the traffic lanes they will use. Currently, arterial road traffic lanes are not designed for the posted speed limit, but for the "safety" of speeders doing twice the posted speed limit (or more).

From link. Mississauga used 3.5m as a "standard" width and 3.75m for trucks. (Maximum truck wide is 2.6m for refrigerator trucks, see link.)

 

[drum118]

Just for complete clarity for @Transportfan 's question, the guideway will be in the centre, correct? So the construction in the 407 median is to widen the bridge for the car lanes/ramp lanes, right? I didn't have a chance to measure the existing bridge width and compare it to the drawing posted above.

Standing in the middle of the existing bridge, it not wide enough to support an LRT in the middle. Only when I looked over the side of the bridge at the work on the barrier did I see the pier support that very close to the bridge. It was then I said to myself that they were planning to built a new off ramp so the LRT can be built on the bridge. Even the 403 will not support an LRT and why a new bridge is being built for it.

The 401 bridge was rebuilt with provision for an LRT in the middle.

Reading the drawing, it is showing that the bridge needs to be widen with the yellow and purple markings.

The current speed limit on the road will be a lot lower than it is today in the next 5 years.

 

[Allandale25]

^ I think the purple lines are the property lines.

 

[Allandale25]

This latest picture gives a helpful perspective on the widening.

https://twitter.com/x/status/1301618506962739201

 

[Allandale25]

And more pictures here. The top two pictures on the preview below appear to show new pillars being added under the existing bridge. Interesting.

https://www.facebook.com/74982491149/posts/10157210534721150

 

[drum118]

As part of the Hurontario LRT project, work has advanced to widen the underpass at Highway 407 to create a new centre and independent deck to carry the LRT guideway. To ensure the underpass can support this weight, crews are driving prefabricated piles into the ground to add further support to the structure.

 

[KevinT]

As part of the Hurontario LRT project, work has advanced to widen the underpass at Highway 407 to create a new centre and independent deck to carry the LRT guideway. To ensure the underpass can support this weight, crews are driving prefabricated piles into the ground to add further support to the structure.

Interesting, I'd have thought that LRT has a lower per axle weight than a transport truck, though I suppose the fact that it's longer (having more axles than a truck, plus future coupled pairs) increases the overall load on the span. Does anyone know if they're planning for embedded track here or if they'll use ballasted like ION did for Northfield Dr over highway 85? My assumption is that ballasted track adds less weight to the bridge than embedded.