N scale Block wiring OK, I've got the layout looking like I wanted it to, or as close as I could humanly come. The next step is the wiring blocks. I am anticipating as many as five or six engines/trains running at the same time, in the hope of attracting an operating crew. :thumb: Upper level Lower level The Main yard at the bottom of the upper level is an interchange between two major lines as well as two spurs. Right now I'm looking at the UP an BNSF as the major players and the spurs being subsidies of the primary line, whichever one it turns out to be. It is also a service and storage hub for the primary line. The upper yard is an industrial park with light industry and manufacturing, possibly a freight transfer point. Right now I have a freight transfer station. I'm not ruling out an inter modal point instead though, it just depends on available space. The passenger station is situated so that it has access to both mainlines as I plan on having local commuter service serving the industrial park as well as local and express service on the other mainline. There would be a switch engine shuttling loaded and empty cars between the the industrial park and the main yard via the siding that runs through town as well as repositioning cars for the different industries. This alone offers a lot of switching potential. In addition there would be another full time switcher operating the main yard, sorting rolling stock for the local market as well as classifying and setting out cars going to and coming from both directions of both mainlines and spurs. Add to that building up and tearing down trains on the lower level yard with its own switcher as well as operating up to three trains on the mainlines and it should keep people busy for an operating section. I am thinking about covering the back two lines partially with removable tunnels and forest blinds to give the impression that they actually go to different places. I know that it isn't wise to put a tunnel in an inaccessible spot, but it would cover mainly the straight stretches and emerge within the "access zone." That would give me more scenery and help eliminate the "train going in a circle" effect. Now that you have the background, back to my original question. Are their any comments on the block wiring? If I ever get rich enough or enthusiastic enough about it I will switch over to DCC, but for now it's going to have to be the old fashioned DC way. The different colors indicate different blocks. I know some of them are a little hard to make out, I just don't have enough imagination for a a lot of varied colors.