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curves or straight runs

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  • Member since
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  • From: New England (Cape Cod)
  • 128 posts
curves or straight runs
Posted by DonRicardo on Tuesday, December 20, 2022 12:54 PM

This is my third layout. Since nature abhors straight lines, I used gentle curves and S curves on my second layout, instead of straight runs. The only straight sections were depots areas, yards, and sidings.

I went with straight runs on my first, a double track loop with passing sidings, and felt it looked toy like.

This one will also have gentle curves and s curves. I used 1x3 for the becnch work, and 2 inch foam for the base, ready to start laying the track.

The 1x3 seems more than adequate for bench work, even with the cat running around on it...a nosy pest!

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Posted by TrainzLuvr on Tuesday, December 20, 2022 2:14 PM

Nature might prefer more organic, visually pleasing, shapes, but the railroads hate curves (as well as bridges, tunnels, etc.). They would like to live in a world where everything from A to B is always an uninterrupted straight line.

Are you a nature modeler, or a railroad modeler? Wink

DrW
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Posted by DrW on Tuesday, December 20, 2022 2:26 PM

TrainzLuvr

Nature might prefer more organic, visually pleasing, shapes, but the railroads hate curves (as well as bridges, tunnels, etc.). They would like to live in a world where everything from A to B is always an uninterrupted straight line.

Are you a nature modeler, or a railroad modeler? Wink

 

 

True. I do not think it ever occurred to the engineers who built the Trans-Australian railway line through the Nullarbor Plain to introduce some curves to make it more interesting. No, they built nearly 300 miles (478 km = 297 miles) of uninterrupted straight track.

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Posted by MisterBeasley on Tuesday, December 20, 2022 2:37 PM

From a modeler's perspective, I prefer some curves and track lines that are not parallel.  I just think it's more interesting.

It takes an iron man to play with a toy iron horse. 

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Posted by davidmurray on Tuesday, December 20, 2022 2:54 PM

After you build scenic curves, it will look better if there is a reason for the curve.  A twenty foot hill that was easier to go around rather than thru.  A water feature that would have required a bridge, etc.

 

David Murray from Oshawa, Ontario Canada
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Posted by selector on Tuesday, December 20, 2022 3:28 PM

TrainzLuvr

...

Are you a nature modeler, or a railroad modeler? Wink

 

Ought one not to be both....if one calls hisself a 'modeler'? 

If a modeler wishes to depict a typical railroad main line, he'll need at least some curvature, in both axes. and I'm not talking about the diverging routes on turnouts.

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Posted by dehusman on Tuesday, December 20, 2022 4:39 PM

Railroads will build tangents where they can and curves where they must.  

You can use the difference to emphasize the feel. Use flowing curves to create an out in the woods feel or where you intentionally want to "interrupt" the urban feel, use tangents in areas where you want to emphasize the railroad as a man made thing in nature.

I have seen layouts that are HUGE and are a series of decks 30-40 ft long with two tracks laid straight as an arrow exactly parallel to the backdrop and the fascia.  Very unrealistic.

Dave H. Painted side goes up. My website : wnbranch.com

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Posted by riogrande5761 on Tuesday, December 20, 2022 5:21 PM

I suggest using 1x4's for the frames and 1x3's for the cross members.

 

 

Rio Grande.  The Action Road  - Focus 1977-1983

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Posted by PC101 on Tuesday, December 20, 2022 6:58 PM

dehusman

Railroads will build tangents where they can and curves where they must.  

 

 

Me too. Mostly all soldered rail joints and no buckling/kinking of track. I do not think I have any S turns anywhere.

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Posted by SeeYou190 on Tuesday, December 20, 2022 10:47 PM

DonRicardo
I used gentle curves and S curves on my second layout, instead of straight runs. The only straight sections were depots areas, yards, and sidings.

I am with you 100% on this.

I avoid straight track as much as possible. Trains look better going through curves.

-Kevin

Living the dream.

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Posted by crossthedog on Tuesday, December 20, 2022 11:35 PM

SeeYou190
Trains look better going through curves.

True, and they couple better on straights. I intentionally designed my tiny layout in a kidney-bean shape to avoid having a simple loop with two straights joined by perfect end curves, but for all I'm satisfied with my sweeping loop, I've found that I'm pressed for good places to put industries or even a drill track that's long enough and straight enough to do some switching on.

You've seen this before, but to make my point:

 

I agree in principle with the More Curves contingent, but honestly I wish I had more tangents.

-Matt

Returning to model railroading after 40 years and taking unconscionable liberties with the SP&S, Northern Pacific and Great Northern roads in the '40s and '50s.

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Posted by doctorwayne on Wednesday, December 21, 2022 12:53 AM

Straight runs on my layout would be a nightmare, as the layout room has ten corners...

The only way it could work would be to have a turntable at each corner.

Here are a few views to show some straight track....

 

...and straight track with some curved track, too...

...some curves, but lots of straight track, too...

There's some straight track here....

...but with over 40 loaded hoppers, the ones at the front (beyond this side of the view) are in multiple curves, and the hoppers in the distance are also in multiple curves.  A 22 lb. HO train is easier to run on straight and level track, rather than on multiple curves on a 2.8% grade that's over 46' long.

Wayne

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Posted by wjstix on Wednesday, December 21, 2022 8:29 AM

I think it can go either way. I've seen layouts that seemed unrealistic because of the long straight rail lines, with the track and roads and everything lined up parallel to the benchwork. But I've also seen layouts where it seemed like a real railroad in that topography would have built a straight line with perhaps a few cuts and fills, and instead the modeller built a line with a series of twists and turns that seemed very unrealistic and 'toy train' like.

FWIW I grew up in a town that was built after the railroad was in place. The railroad ran dead straight north-south, and the town's streets and buildings were pretty much all built parallel to the railroad, so doing that on a layout doesn't seem all that unrealistic to me. 

Stix
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Posted by SeeYou190 on Wednesday, December 21, 2022 11:05 AM

I guess, as with most things, it comes down to your personal goals.

My layout will be a big series of photo-locations where I can run trains when I want to.

Curves just look better to me when I pose photographs.

-Kevin

Living the dream.

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Posted by Doughless on Wednesday, December 21, 2022 2:16 PM

Geography can matter:

 

Bote's Rail Pages - Sugar Cane Rail Chaser's Guide

 

 

 

- Douglas

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Posted by Mark B on Wednesday, December 21, 2022 2:36 PM

I believe the layout design guru from years long past was John Armstrong. He advocated very broad curves for photography and viewing enjoyment. I sort of followed his advise and was able to get a 13 foot radius curve worked into part of my layout. I've had very positive feedback on it through the years.

Mark B.

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Posted by kasskaboose on Wednesday, December 21, 2022 3:56 PM

Mark B

I believe the layout design guru from years long past was John Armstrong. He advocated very broad curves for photography and viewing enjoyment. I sort of followed his advise and was able to get a 13 foot radius curve worked into part of my layout. I've had very positive feedback on it through the years.

Mark B.

 

Broad curves do look great.  I like the majestic feel of them.  Nice seeing a long consist go around.

Didn't Mr. Armstrong also mention about avoid "S" curves?

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Posted by crossthedog on Wednesday, December 21, 2022 4:25 PM

kasskaboose
Didn't Mr. Armstrong also mention about avoid "S" curves?

I keep hearing this, but my S curve is my favorite part of my layout. I run mostly 40' freight cars, but my passenger train of Branchline/Atlas and Spectrum 75-or-so-footers goes through it without trouble as well.

-Matt

Returning to model railroading after 40 years and taking unconscionable liberties with the SP&S, Northern Pacific and Great Northern roads in the '40s and '50s.

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Posted by wjstix on Wednesday, December 21, 2022 4:35 PM

The rule of thumb is there should be a straight section between the curves of an S-curve that's as long as the wheelbase of the longest piece of equipment that will be run. You can probably get by without that if you are using very broad curves and have very good track. 

Stix
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Posted by BATMAN on Wednesday, December 21, 2022 4:49 PM

Tough to get a good balance when facing real estate limitations. I did want one long straight stretch and got it. I think I got a good balance with the rest as well.

Brent

"All of the world's problems are the result of the difference between how we think and how the world works."

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Posted by crossthedog on Wednesday, December 21, 2022 6:35 PM

wjstix
The rule of thumb is there should be a straight section between the curves of an S-curve that's as long as the wheelbase of the longest piece of equipment that will be run.

Well that might explain why my S curve causes no issues. There's a standard (=not curved) turnout in the middle of it.

Returning to model railroading after 40 years and taking unconscionable liberties with the SP&S, Northern Pacific and Great Northern roads in the '40s and '50s.

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Posted by selector on Wednesday, December 21, 2022 7:53 PM

SeeYou190

 

 
... Trains look better going through curves.

-Kevin

 

My opinion as well, Kevin.

White Pass & Yukon Rt. six years ago:

My long gone second layout: Crying

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Posted by doctorwayne on Wednesday, December 21, 2022 9:03 PM

Some curves here...(click on the photos for a larger view)

...and here...

...and here...

...and even more here...

Wayne

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Posted by Track fiddler on Wednesday, December 21, 2022 9:26 PM

Just realized the whole layout is curves. The only thing that's strait is the reverse LoopLaugh

 

TF

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Posted by Pruitt on Wednesday, December 21, 2022 10:32 PM

I have curves where the topography demands curves:

And where the practicalities of layout design demand it too:

And tangents where they make the most sense as well.

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Posted by John-NYBW on Thursday, December 22, 2022 8:22 AM

My mainline is almost all straight track except of course when it has to bend around the corners of the train room. To make it more interesting, I have the straight sections running at a slight diagonal to the front of the benchwork. My branchline runs through the mountains and has few long running straight sections. Lots of S curves. 

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Posted by DonRicardo on Thursday, December 22, 2022 6:05 PM

I always have a creek or river to cross on my layouts (love bridges and/or trestles), and will be doing the Saco river in New Hampshire, I will have a trestle cut into the mountain side, the original is steel on the CSRR, but I like wood so the layout will have a wooden trestle rolling through the cut in the White Mountains. The curves are mostly gentle with straight runs into the Conway passenger station and engine storage/repair area.

I use straight sections cut from flex track off the turn outs, always at least one straight going into tunnels or over bridges and always use easements.

When we were on the farm as youngsters, The old Western Maryland would follow the creek at the south end, running along the cornfield and creek, and the easy going curves were a beautiful thing to watch as the train rolled through, usually with 200 or so cars winding through, looking like a giant ribbon of gondolas, it was awesome.. There would be 2, 2-8-0s, at the head end, two in the middle, and a pusher at the rear.

New engines are Bachmans GP40s (2), that do  run very quietly and smoothly, they are a lot better than the old Bachmans.

The passenger staock is Atlas Trainmaster 60' cars (5), these are nice looking cars, especially for the price.

I installed decoders in the Bachmans as it was cheaper that way, and they test out as excellent tunners. I am using NCE DCC..

The yard engine is an old SW1500 I had that still runs just great, and I have a 2-6-0 steamer for "excursions.

The only problems I have encountered on the old stock is the larger flanges, so I am using code 80.

A little maintenance on the older engines does wonders for them, and seemingly they will last forever with a little tlc!

There is a mix of freight cars, mostly older with the larger flanges, but they look good enough, I don't count rivets!

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Posted by PC101 on Saturday, December 24, 2022 11:29 AM

John-NYBW

 To make it more interesting, I have the straight sections running at a slight diagonal to the front of the benchwork.

 

Ditto.

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Posted by hardcoalcase on Sunday, December 25, 2022 11:36 AM

I recall a discussion in MR decades ago where the opinion was expressed that  curved track made the layout seem larger.

I find this to be the case on my layout as the train presents itself at a slightly different perspective/viewing angle at each point of the curve. 

For trains on straight track, the viewing angle is basically the same as the train gets closer or farther away.

Jim  

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Posted by DonRicardo on Monday, December 26, 2022 8:30 AM

In the Alleghany mountains of Pennsylvania, where our childhood farm was, and in the White Mountains of New Hampshire, the rails have a lot of curves, nothing drastic, but gentle curves around streams, rivers and hills with bridges and trestles, in them selves beautiful things, and the trains rolling along those curves made stunning scenes. In those days we were in the transition period with first generation diesel mixed with steam. At that time steam was still the preferred mountin motive power, as the early diesels did not have the tractive power for the mountains.

Many times my brothers and I would climb the nearby trees and watch the trains rolling through from an elevated perch. It was awesome! And with the steam, it was noisy too!

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