Toronto GO Transit: Davenport Diamond Grade Separation | ?m | ?s | Metrolinx

[Toolio555]

Are those tracks getting laid that I see

 

[smably]

 

[Bordercollie]

Are those tracks getting laid that I see View attachment 435874

Where is the ballast?

 

[crs1026]

Where is the ballast?

According to the EA document track on the guideway will consist of rail fastened to concrete plinths. No ballast required, except on the end ramps.

- Paul

 

[Bordercollie]

According to the EA document track on the guideway will consist of rail fastened to concrete plinths. No ballast required, except on the end ramps.

- Paul

How does that dampen the vibration of the train?

 

[crs1026]

How does that dampen the vibration of the train?

Read Appendix E of the EA.

The guideway was assessed as producing less vibration than ballasted track on earth.

- Paul

 

[Bordercollie]

Read Appendix E of the EA.

The guideway was assessed as producing less vibration than ballasted track on earth.

- Paul

I guess they have rubber padding or something that prevents the vibration from being transferred to the concrete similar to Street car track.

 

[cplchanb]

According to the EA document track on the guideway will consist of rail fastened to concrete plinths. No ballast required, except on the end ramps.

- Paul

it will definitely simplify maintenance long term. No ballast to dig out and everything is hard fastened to the structure.

 

[ProjectEnd]

Noise wall erection last night:

 

[W. K. Lis]

Noise wall erection last night:
View attachment 436430View attachment 436431View attachment 436432

No glass noise walls, the parking lots may complain.

 

[ProjectEnd]

 

[smably]

The west noisewall installation has almost reached Sarnia Ave:

 

[cplchanb]

View attachment 436798

The west noisewall installation has almost reached Sarnia Ave:
View attachment 436799

bit of a shame that theyre using precast sections but if it get things done quick and cheap with easy maintenance I guess its good to go.

 

[Mrgeosim]

bit of a shame that theyre using precast sections but if it get things done quick and cheap with easy maintenance I guess its good to go.

I believe the plan is to clad the noise barriers with anodized aluminum. Certainly not the prettiest option, but I'll take aluminum over concrete any day.

 

[EnviroTO]

The guideway was assessed as producing less vibration than ballasted track on earth.

Most vibrations in tracks come from joints in the track, switches, and rail movement. If there are no joints (continuously welded rail), no switches, and the rail is fastened firmly then trains should glide along them with almost no vibration.