Unbalancers
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NOTE: This page is not final yet, so it might look messy and contain incorrect information.
Unbalancer
Overview
The Idea behind unbalancers is, that you want to keep the traffic on 1 lane while the second lane is as empty as possible. The principle is called SML.
Simple Unbalancer
To move trains onto one single lane, a track between them is made. To prevent trains switching tracks while a train is close to the switch, priority is added. To force the switching, a penalty is added to the track that has to be empty.
Unbalancer with Bypass
Sometimes trains turning off have to stop because a train on the other lane is coming, therefor a bypass is needed to keep the flow flowing.