Train level crossing ideas question

[XG BC]

Someone on reddit asked me how this level crossing works. I have already figured out how each of the barriers on one side is connected, but i havent been able to figure out how the sides are connected to each other. there would be one plate of space between the rails and the floor. The barriers are connected to each other with a slide system, where one side has gearing to invert the motion.

my idea would have been to use rigid hoses, and these clip parts, but i dont think thats the solution either.

https://imgur.com/a/uopNifw

[idlemarvel]

I don't think a bar with clips would be a string enough connection to lift a barrier.

It looks like a toothed rack is moving a plate under the rails. Maybe they have used single rail pieces under the crossing which would give you a plate height to play with with a larger gap between sleepers.

[t-brick]

Maybe Bars 12L with 1 x 2 Plate End Solid Studs and 1 x 1 Round Plate End (https://www.bricklink.com/v2/catalog/catalogitem.page?P=42445) are used to connect the sliders on both sides under the rail pieces?

[XG BC]

50 minutes ago, idlemarvel said:

I don't think a bar with clips would be a string enough connection to lift a barrier.

It looks like a toothed rack is moving a plate under the rails. Maybe they have used single rail pieces under the crossing which would give you a plate height to play with with a larger gap between sleepers.

that wont work because the plate would connect to the rails, or connect to the plates in the middle.

27 minutes ago, t-brick said:

Maybe Bars 12L with 1 x 2 Plate End Solid Studs and 1 x 1 Round Plate End (https://www.bricklink.com/v2/catalog/catalogitem.page?P=42445) are used to connect the sliders on both sides under the rail pieces?

i think these are too long for it to work.

the reddit post for all those that want to see that (i am DoubleOwl7777 on reddit):

https://www.reddit.com/r/LEGOtrains/comments/1nqu9r4/comment/nga5zoh/?context=1

anyways, hope this helps the redditor figure it out.

[JopieK]

I am in the process in upgrading everything to MILS and that helps a lot. I don't want to hijack your topic, but if I find the time I'll share my built (I even demonstrated it today to my undergraduate students :)).

[L-Gauger]

9 hours ago, idlemarvel said:

Maybe they have used single rail pieces under the crossing which would give you a plate height to play with with a larger gap between sleepers.

If you zoom in on the photo, you can see that this is exactly what is going on. Good observation! The level crossing proper uses 4.5V-style straight rails (the modern version of them, I might hasten to add...) and connects to PF track sections using the Dark Brown tiles, or at least so it appears. 

Edited September 26 by L-Gauger

[zephyr1934]

Here's the link to the original ideas post (copied from the redit). So the dark gray tiles one stud out from the rails in the crossing are definitely sliders to connect the two arms on the same side of the track. Under the crossing itself I bet there are 2+ of 1x4 plate with two studs

and in the middle the are tied together with tiles. So the bottom layer has a series of two of these 1x4's in pairs end to end, and then the next layer up are 2xn tiles connecting the 1x4's together.

[XG BC]

yeah you are right i have overseen something. you have one plate of space extra in the middle, then its more or less easy to do. hope this helps the redditor