Hey im woundering how to make the route big on TRS2004,i want to built the PRR route.
There are numerous ways to do this ranging from building one baseboard at a time to downloading and manipulating DEM files of the region you are working on. There is more information in the Surveyor and Driver forum than what I'll give you here.
To handle DEM files, you need either HOG or TranzDEM, which is highly recommended by those that use it). These programs will allow the DEM information to be translated into a format that Trainz can handle. There's some in between stuff you have to do, but I'll leave this as it is for now. Once your base, pretty much blank map is installed, you can then lay the roads and rails in their proper place. Speaking of the DEMs, a retired forum member Paul (Fishlipsatwork), made some ready-made blank terrains that can be built on. He did various areas of the country and may include the area where you are planning to work. These blank routes were created using HOG and include the preformed landscape as well as the TIGER lines, which show the placement of roads, track, streets, and waterbodies.
The other, more arduous method, is to build each baseboard one at a time. You expand the single baseboard using the advanced tab on the topology tool. There is a baseboard add, and delete. Each time you add a baseboard on the end, you get another 720 x 720 meter grid to work with. The advantage of using the DEM import method over this is the terrain is already modified. With the blank flat baseboards, you need to manipulate the landscape. There's a way of placing map images on each baseboard and tracing over them, this is both good and bad, and can be a pain... I usually use this for small areas that I am working on. It's also great for tracing off model railroad routes that have been scanned from a book.
There's no reason why you can't combine the methods mentioned while building. My route for example, is loosely based on New England, but is a combination of other peiople's work, mine, and blank DEMs that have been imported. There's an art in its self for blending the different pieces together so that it isn't obvious that these parts are from differernt sources.
The most important things to remember is to save early and save often, and be sure to have safe copies elsewhere. Once you get into the building mode, the whole world will shutdown while you're route building. It will be too easy to remember to do this until it's too late.
Remember have fun. When the route building becomes too much of a chore, take a break from it and do something else; been there and done that.
John