03-06-2010, 01:30 PM
I'm going to have to re-read this thread - the operations side still has a lot of gray area to me.
Foulrift, I forgot to thank you for the input. The restricted space using reach cars is an interesting idea, and timely since I'd just read that note about a CSX engineer having to use NINE reach cars to get to one customer site.
I've updated the plan with a couple of changes to the interior of the design. These are minor in that they don't change the track plan, but I think important from a reliability and construction standpoint.
- Corrected the alignment of the "main" to meet the turnout on the right end of the run-around. For those with sharp eyes, you'll notice on the previous iteration of this plan that the short connection between the two turnouts inside the run-around was at an angle. That was an expedient cheat...
- Made the runaround several inches longer
- Increased the length of the tangent off the tail of the right run-around turnout to about 3.5". Previously this was under an inch, and created a pretty abrupt reverse curve.
- Re-drew the right crossover - previously, the lead from the "main" entered the crossover while still on a curve. This has been eliminated.
- The various jiggling of the parts to accomplish the above shortened the interchange by about 1/2" and increased the spur to Holderbaum Supply (in contract to be sold to Bellinis holdings) by about 2"
- Various curves have been tightened to accomodate the changes, but also to give a the plan a little more "squeeze". The tightest radius is 18" on the approach to the crossover to Angle Brothers. I have another around 20", the remainder are 30" or greater.
![[Image: p520004231-4.jpg]](http://goodman312.zenfolio.com/img/v11/p520004231-4.jpg)
(full size image here: <!-- m --><a class="postlink" href="http://goodman312.zenfolio.com/img/v11/p520004231.jpg">http://goodman312.zenfolio.com/img/v11/p520004231.jpg</a><!-- m -->)
The corrections to the "fudged" sections are important for a more practical reason - this final is the template I'll be using to lay track. I've printed the plan (track only) and laid it on the shelf. It looks good - especially with some rolling stock sitting on it!
<edit - added new image - original was missing part of the image on the right side>
Foulrift, I forgot to thank you for the input. The restricted space using reach cars is an interesting idea, and timely since I'd just read that note about a CSX engineer having to use NINE reach cars to get to one customer site.
I've updated the plan with a couple of changes to the interior of the design. These are minor in that they don't change the track plan, but I think important from a reliability and construction standpoint.
- Corrected the alignment of the "main" to meet the turnout on the right end of the run-around. For those with sharp eyes, you'll notice on the previous iteration of this plan that the short connection between the two turnouts inside the run-around was at an angle. That was an expedient cheat...
- Made the runaround several inches longer
- Increased the length of the tangent off the tail of the right run-around turnout to about 3.5". Previously this was under an inch, and created a pretty abrupt reverse curve.
- Re-drew the right crossover - previously, the lead from the "main" entered the crossover while still on a curve. This has been eliminated.
- The various jiggling of the parts to accomplish the above shortened the interchange by about 1/2" and increased the spur to Holderbaum Supply (in contract to be sold to Bellinis holdings) by about 2"
- Various curves have been tightened to accomodate the changes, but also to give a the plan a little more "squeeze". The tightest radius is 18" on the approach to the crossover to Angle Brothers. I have another around 20", the remainder are 30" or greater.
(full size image here: <!-- m --><a class="postlink" href="http://goodman312.zenfolio.com/img/v11/p520004231.jpg">http://goodman312.zenfolio.com/img/v11/p520004231.jpg</a><!-- m -->)
The corrections to the "fudged" sections are important for a more practical reason - this final is the template I'll be using to lay track. I've printed the plan (track only) and laid it on the shelf. It looks good - especially with some rolling stock sitting on it!
<edit - added new image - original was missing part of the image on the right side>
Matt Goodman
Columbus, Ohio
Columbus, Ohio