The mechanics of the game do not allow multiple trains on one block under normal operating conditions. When you create a signal, blocks are now identified in the game by a colored line. Every piece of connected rail will make up that block indicated by the color of that block. So if you have a railroad with no signals you have a 1 block railroad, which means you can only have 1 train. Later on in the game you will have more blocks than you can count so don't worry too much about how many blocks you have. ![]() However it's prudent to remember you will always need more blocks than trains so they can move around.Ī visual representation of blocks created bysignals. There are 4 different signals, but practically there only 2 types of signals in the game: the regular signal (also called block signal, normal signal, or just signal) and pre-signal (also called chain signal). In the image the regular signals are at the top, outlined in red. The pre-signals are at the bottom, outlined in yellow. ![]() Both signals will divide the rail into new blocks, but the pre-signals interact with the trains differently.Ī regular signal only tells the train if the block after itself is clear to enter or not. You can also chain pre-signals together which is why they are also called chain signals.Ī pre-signal, acts like a normal signal but also "looks ahead" to the next signal, which is why it's called a pre-signal because it comes before another signal. Hopefully at the end of this guide you will understand which situations you should use each in. Take the following example into consideration: Semaphores function the same as signals, they just look different and cost less. We've built our first railroad, complete with a depot, a station with a resource, a station with a buyer, and all the rail in between. However, we don't have any signals! so this is considered to be 1 block(represented by the added red line) which is no problem for our 1 train going back and forth between the two stations. But soon we will need to make a connection to the new station at the new buyer off in the distance at New Braunfels (pronounced BRAWN-felz). ![]() Now we've built the connecting rail to our new station, and even bought the new train and have the route set up, but the train won't even leave the depot. This is where signaling comes into to play. Since our fledgling rail network is only 1 block, the new train has nowhere to go out of the depot. We can fix this by adding some signals to the intersection circled in yellow. Ok, so we've added some signals to the intersection, and increased our rail network's block count to 4! This will work since we only have 2 trains and we always want more blocks than trains. Notice there are signals on both sides of the rail at each of the three branches of the intersection, this is so that the trains can move both ways on the track. Oh no! Our signals worked for a while but at some point they got stuck, this is what is known as a deadlock.
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