Tunnels

[emalton]

Hi, I want to lay a 2 track tunnel but all the tracks in the tunnels I have tried run in the same direction which causes signalling problems with AI?
I've layed a twin tunnel for my underground section of the chiltern line from finchley road to marylbone. The AI runs fine with no signals. Are there any twintunnels with different direction track but without a massive front to it?

 

[cascaderailroad]

Double and Quad tracks all run the one dirrection.

I like to use PRR Tunnel Portals by BNSF50, Tunnel Portal and by FSP, as these are scenery items that can be rotated and height change independant of track.

Generallly multi tracks splines are a bad idea for a finished route, as they have "swervies" where curve & straight sections should be. Multi track splines cannot be straightened.

I use multi track splines: "MB_Finescale_Quad_4m", as temporary tracklaying track spacing templates for straight sections. I connect single tracks where the curves should be, and attach them to the straight multi track splines. Also where a single track joins a multi track spline the gradient tool is ineffective. When satisfied I also replace all multi track splines with single track ... one track at a time ... very time consuming.

When I do use a tunnel spline, I use the Hold Shift key, and lay single track right over top (0.20m above) the tunnel track (hiding it below).

Also track types kuids can be swaped in a config file.

I like Tunnel 3_1 voie ... but it has errors and typo's in the config file that must be fixed (I can tell you how to fix it). PM me

Also very short stone viaduct spline segments make ideal tunnel portals.

9/10's of the big block head tunnel portals are huge, ugly and snap to grid. You can disable any tunnel snap to grid by changing the config file height to -1 ... but this also disables the built in tunnels dighole ... requiring manual 1x1 dighole placement

 

[rjw1975]

The only thing I could find under PRR tunnel by bnsf50 in objects were tunnel crack covers. Is this what you`re talking about?

 

[cascaderailroad]

There are his portals also.
http://www.auran.com/TRS2004/DLS.php search tunnel ... seach portal ... search tunnelportal ... search tunnel_portal ... search tunnel portal ... search username FSP and BNSF50

 

[rjw1975]

ok, I searched the dls, usually I just use cmp, and now 1 thing has me a bit confused. bnsf50`s tunnel PRR portal cc 1 track Kuid:39134:102611 is listed on cmp as track and on the dls as building-structure. I checked to make sure the kuid# is the same. Which one is right?

 

[cascaderailroad]

The CC are just Crack Cover for covering joints so water and snow won't leak in nor light ... I think ... I never used the CC's as that would be a finishing touch to a tunnel.

Search Tunnel PRR there are 4

Search usernname BNSF50 subsection drop down list buildings/structures

Remember to tick off all the boxes all the way up to TRS2006, or all of them

Also see his Stone Wall (for in between adjacent portals)

And Tunnel 1 Track Tehachapi Loop style ... Tunnel 2 Track Tehachapi Loop style

And username FSP and near the bottom of the list is his Tunnelportal & Stone retaining Wall clean/dirty with & w/o pillar

 

[llebrez]

The idea of superimposing a track over the tracks of a standard tunnel is not so new. I do this using a "bridge tracksound track". Then, as you drive inside.. you get a noise that even if not so real, it gives a good sensation. (doing this since 04..). On this matter, it would be good if someone makes a "tunnel tracksound track"...

 

[paulzmay]

Hi, I want to lay a 2 track tunnel but all the tracks in the tunnels I have tried run in the same direction which causes signalling problems with AI?
I've layed a twin tunnel for my underground section of the chiltern line from finchley road to marylbone. The AI runs fine with no signals. Are there any twintunnels with different direction track but without a massive front to it?

The thing about track direction is a bit of a myth I believe. No-one's ever presented more than circumstantial evidence that there is a problem. If the route is properly signalled there should be no problem. I'm pretty sure that most actual tunnels are 2 tracks in the same direction as that's simply the way Trainz does double track.

I'd try looking at the AJS tunnel kit from the DLS, plus additional tunnel mouths by bloodnok and others (IIRC). It doesn't lock to the grid in teh same way as others, but it does take more setting up...

Paul

 

[pfx]

The thing about track direction is a bit of a myth I believe. No-one's ever presented more than circumstantial evidence that there is a problem. If the route is properly signalled there should be no problem. I'm pretty sure that most actual tunnels are 2 tracks in the same direction as that's simply the way Trainz does double track.

I'd try looking at the AJS tunnel kit from the DLS, plus additional tunnel mouths by bloodnok and others (IIRC). It doesn't lock to the grid in teh same way as others, but it does take more setting up...

Paul

I agree with Paul. I've never, ever had an issue with this track direction problem I've seen mentioned. As far as I'm aware, it'a a Trainz 'urban myth'.

AJS tunnels are very good though. Work well on UK themed routes but as Paul says, they take a bit of setting up. The upshot is you get a far more flexible tunnel than those that snap to the grid.

 

[emalton]

What do you do with the signal in a tunnel thats double tracked thats facing the wrong way?
I turned the signal but it says the line ahead is not signalled

 

[pfx]

What do you do with the signal in a tunnel thats double tracked thats facing the wrong way?
I turned the signal but it says the line ahead is not signalled

Make sure the track is connected properly and that there's a signal beyond the one in the tunnel. I know it sounds obvious but if it's one thing I've learned about Trainz is never rule that obvious.