http://kurt.game-server.cc

Here i suggest posting small secrets or just actions for experienced players.
I will start.
1) how to expand station coverage.In common situation we have a 18-tile station coverage (10 tiles+4 from each side to cover.) Using airports (can be enabled in settings => configure patches => interface) and docks, we can expand this coverage.
International airport is especially efficient in this case, cause it has 8-tile coverage to each side. so we have 23-tile coverage as a result.

This also helps to combine goods accepting buildings of 2 nearby towns.
2)It is rather hard to build signals 1 by 1. If we build 1 signal of needed type, press 'ctrl' and move 1 tile to the side where we want such signals, TTD will automatically build them to 1st crossing.

using airports this way must be banned, imo

NOPE!but too much is not good.

I agree with duraki. Such airports take up ridiculous amount of space, which can become very annoying on places with limited free room(like any artic map). Not to mention that average player who doesnt know how to enable them is automatically disadvantaged