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Take that gum out of your mouth. You might learn something today.

How do train, light rail, subway, streetcar wheels stay on their track? If you answer the "flange", that's only a safety device. It's the shape of the wheel surface itself.


See also this link.

main-qimg-0ccbc9b6f49787fee28836d0debc5da1
 
Take that gum out of your mouth. You might learn something today.

How do train, light rail, subway, streetcar wheels stay on their track? If you answer the "flange", that's only a safety device. It's the shape of the wheel surface itself.


See also this link.
Actually it's not that simple...many factors conspire for the best profile per demand, which vary radically. What is *generally* true is that flange wear is to be avoided if at all possible. But that doesn't negate the role of flanges in the least...even double flanged wheels are called for in some very demanding situations...(like roller coasters and mines)

upload_2017-7-15_16-58-28.png


https://books.google.ca/books?id=LY...onepage&q=double flanged wheel trains&f=false

[...]

Wheel geometry and flange


Railway wheel flange (left)
Tram wheel flange (right)
Most train wheels have a conical geometry, which is the primary means of keeping the train's motion aligned with the track.[1] Train wheels have a flange on one side to keep the wheels, and hence the train, running on the rails, when the limits of the geometry based alignment are reached, e.g. due to some emergency or defect. See Hunting oscillation. Some wheels have a cylindrical geometry, where flanges are essential to keep the train on the rail track.
[...]
https://en.wikipedia.org/wiki/Train_wheel
 

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Cross posting from the VIA Rail thread. waterloowarrior posted a map VIA Rail showed at a recent meeting in Frontenac County shows an "Eglinton" station that would be "new". I can't remember if a rail-LRT connection was looked at during the Crosstown LRT study process. Wonder what CP would want to put a station there? The addition of two dedicated tracks including bridge expansion?

2vyR2hv
 
From trips by on the GO train - the MSF is certainly taking shape, a lot of the steelwork is up and there is a lot of civil work going on. Laying the first bit of track sounds about right, although it won't amount to much for a while.

- Paul
 
Dont worry, Del Duca surely wont miss on opportunity like this to keep us updated on what it is.

"The Government of Ontario is proud to re-announce that we're considering one day funding the construction of a new GO bus stop [or something similarly banal]. See, government is doing something. Vote for us! Please ignore our other languishing infrastructure promises"
 
News Release

Ontario Reaches Major Milestone on Eglinton Crosstown LRT Construction
August 9, 2017

Province Building More Transit for Commuters and Families in Toronto
Ontario is one step closer to bringing better transit to people across the Greater Toronto Area (GTA) with the first piece of track for the Eglinton Crosstown Light Rail Transit (LRT) project now installed.

Steven Del Duca, Minister of Transportation and Laura Albanese, MPP for York South-Weston were at the future site of Mount Dennis Station and the LRT maintenance and storage facility today to mark the milestone.

The 19-kilometre Eglinton Crosstown LRT, which will open in 2021, will connect Mount Dennis Station in the west with Kennedy Station in the east, and includes a 10-kilometre underground portion between Keele Street and Laird Drive, and 25 stations and stops that will link to bus routes, three subway stations, three GO Transit lines, and the Union Pearson Express.

When fully operational, the LRT will carry an estimated 5,500 passengers per hour in the peak direction, speeding up commutes and helping people get where they need to go faster and with greater convenience.

Ontario is making the largest infrastructure investment in hospitals, schools, public transit, roads and bridges in the province's history. To learn more about what's happening in your community, go to Ontario.ca/BuildON.

Building more rapid transit for commuters and families is part of our plan to create jobs, grow the economy and help people in their everyday lives.


QUICK FACTS
  • Construction crews installed a “turnout track” -- part of the 8.5 kilometre track system that will move vehicles through Mount Dennis Station and adjoining maintenance and storage facility. The facility is the first major component of the Eglinton Crosstown LRT project scheduled for completion and will be finished in 2018.
  • Ontario is fully funding the Eglinton Crosstown LRT to expand transit in the City of Toronto, with an investment of $5.3 billion.
  • The Eglinton Crosstown LRT is being delivered as an Alternative Financial and Procurement (AFP) project, using the design-build-finance-maintain model.
 

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