Biggest problem for me in this new game is the bloody signalling system. Now back when it was released as just Transport Tycoon I simply used signals to stop trains hitting each other at crossings, but this time around, and after a lot of poking into the OpenTTD wiki and forums (don't try the forums if I were you, they are a maze!), I simply cannot get my head around them. So to start off, let's all consider this fairly basic problem.
2 trains, 1 [2 way] track. Let's not worry about why this way, just that I want to create it. I had thought I'd solved it, but it seems like I haven't quite got it right. After setting up various passing areas along a fairly long route, I've created one Pre-Entry signal at each end on the single track section and two exit signals, one on either track. Something like this:

However this causes a problem as two trains can meet at these points:

So, does anyone have a suggestion as to how to prevent this? Is it just a case of putting a blocking signal inbetween the two exit signals, here?
