Originally Posted by GG-1fan:
I don't need problems when people come to see my layout. When I know visitors will be coming, I run the trains for about 20 minutes and keep the cars in the same order. I have had experiences with derailments due to an errant car which can happen inside a tunnel. That can ruin the experience for everyone. So I keep the cars in the same order and run on a consistent speed. I have all my transformers set for each train section and all I have to do is turn on each transformer that has its own individual switch and the press the direction button to start. The same thing with operating accessories like the old Lionel cattle car, milk car, dump car, and coal loader. For those items I have them on a separate siding that is insulated from the main line and which is connected to a separate transformer with the voltage that is adjustable depending on the accessory. I have tried to remake my layout with fewer curves to avoid the potential for derailments and even banked the curves in spots. My biggest potential problem is a bad car that will derail no matter what I do. By testing out my consist on a particular track I can remove the offender and use it on another line.
I am in a modular club. I typically test my trains just like you mention the night before a show on my home layout. It reduces problems greatly. If the train will run on my 42" curves, it certainly will on the club's 100ish ones. It doesn't eliminate problems though, as sometimes placing a car on the track backwards from the way I tested it will cause a coupler to not work 100% of the time. And a year or so ago I learned that Marx scale cars with the metal scissor couplers do not like Ross switches (they tend to short out with the uncoupling tab unless it is painted with clear nail polish).
I would guess that most of the problems I have at the club layouts are caused by over excited children that want to touch the trains, or worse, the switch stands. Occasionally, there will be a problem where one guy takes his TMCC engine off the track and forgets to kill track power. Then the next guy running a conventional engine puts his on the track and it launches like a rocket.
As for the home layout, there are rarely any problems. The most common occurring one is when I try to run too many postwar cars at once. Stringlining can be a problem on my layout, and by its design, if it happens, it will happen at the worst possible place.
The little Marx layout I have is full of problems. It has 27" curves, and only 4 sections of straight track on the mainline. The reverse loop is nothing but 4 switches arranged in an S. I don't understand why the trains derail so much on this tiny layout.
J White