Brick Tunnel Portals

[landnrailroader]

I have searched the library and found a number of portals but none are brick. In
doing an addition to the Corbin-Knoxville route that is in the library, I am including
2 branches of Southern Rwy., now NS, recently sold or leased to R. J. Corman.
These have brick portals on the 8 tunnels involved.

If one of you wishes to create one, the Japanese portals would be a start as these
are the older style that tapers so that lateral clearance is less at the bottom that at
the spring line (point where roof curve starts). As no double stack or excess
Plate C equipment was ever allowed, a clearance of 25 feet above the rail is okay.

J. H. Sullivan
aka landnrailroader

[rdayt]

Do you have a picture?

[rt35ge]

Here are two brick textures I use. I had to resize them to load here. You can double the size of each with no issues.[ATTACH]

[rt35ge]

OK...One more time with the second texture

[scottb613]

OK...One more time with the second texture[ATTACH]83107[/ATTACH]

Hi Folks,

With brick textures in general - suggest lower the contrast and add mipmaps - bricks are our worst Moire offenders.

Regards,
Scott

[rt35ge]

Hi Folks,

With brick textures in general - suggest lower the contrast and add mipmaps - bricks are our worst Moire offenders.

Regards,
Scott

Those two textures I've used on a lot of my models for both MSTS/OR and Railworks. They work well for me and I don't do anything special with them. I don't mess with the contrast or add mipmaps on these. I do understand where you're coming from Scott. I can't tell you how many brick textures I've tried over the years with a mixed bag of results.

[ragtimer]

There are some very nice brick tunnel portals over at UK Trainsim.Look in the "scenery" section of the file library

[scottb613]

Those two textures I've used on a lot of my models for both MSTS/OR and Railworks. They work well for me and I don't do anything special with them. I don't mess with the contrast or add mipmaps on these. I do understand where you're coming from Scott. I can't tell you how many brick textures I've tried over the years with a mixed bag of results.

Hi,

Hah - glad it's a good one - it looks nice - yep - it sounds like we've seen some of the same textures.


Regards,
Scott

[landnrailroader]

Most of the portals at UKTrainsim are for double track but there was one which I will try that is single track. The best picture
of one of the portals in question is in TRAINS magazine a few months back which shows a train coming out of Cumberland Gap Tunnel and it would be useful since you can clearly see that the clearances are tight. Although this tunnel was not on the ARCO coal train route, 5 similar, but shorter, tunnels were and the first time we went up there to measure track geometry we were concerned about the clearances for the R-1 car, especially the bay windows. They cleared by less than 4 inches so we went through the tunnels very slow.
If someone is interested in creating a correct SR (initially L&N) brick portal, you can contact me privately and I will scan the magazinie but otherwise it is copyrited and so I don't want the image out everywhere.

[rdayt]

Is it this one?


Edit: This one is part of the Cercanias route. Not sure where I got it.

[rdayt]

This is what I get,

[landnrailroader]

No, that portal was not the one in the UKTrainsim library but it is the correct type of portal and I could use the top one
for the portals on my route. By the way, my route is a version 2 of the Knoxville-Corbin Route and the new
tunnels are on the Clinton to Jellico segment, and the Knoxville to Middlesboro, KY segment. I could use the bottom
portal but the top one is better in coloration. Any of you that have TRAINS Magazine look at the two page image on
pages 10&11 of the Feb. 2021 issue.

[rdayt]

The top one is a picture I found on the web of a portal from the Corbin-Knoxville division.
The bottom picture is of AD_Tunnel_1_Bin.s that I found in my train sim stuff.
The above picture is the two put together.
It was just a quick, down and dirty re-texture.

Randy

[landnrailroader]

Okay, then the top picture looks a lot like the east (railroad south) portal of Cumberland Gap
Tunnel. All of the tunnels on the two segments I am adding (I hit a tdb. snag as you may
see in other forums) were bored prior to 1895 and have brick portals. The tunnels on the
first version of Knoxville-Corbin were on the KLF&J line that the L&N built around 1910 to
avoid using rights on the Southern, and those newer tunnels have concrete portals.

The .tdb thing is not serious, I just had started with the route that is now in the library,
signals etc. and all, and I probably should have started with a sterile version that I made
as the last backup prior to adding interactives. I'm probably going to have to go in and
manually delete the interactives so I can do a .tdb/.rdb rebuilt. Those as we know are
sorta yucky but at least the errors are well documented. Anyway I am looking at a "gap"
where there is a database line but no shape visible for a track piece. Even Goku's TSRE
will not allow deletion of that kind of issue.

J. H. Sullivan

[ebnertra000]

I'm pretty sure the 'delete vector' hack in TSRE will remove TDB lines without shapes, but I haven't used it in a while