Inputs:

• position and train_on_track
• pre_next_segment
• moving
• track_speeds
  

Features:

• on full station (KH, KH_REV, IC, OC) or other special cases the trains take an alternative route (route = 1) to prevent deadlocks
  
  • e.g. if KH_ST is full and the KIO_LN are occupied by incoming (into KH) trains a train leaving KH should always leave through KH
• lock the entrance to KH_LN and KH_LN_REV and the exit of the turnout track if more than two trains travel in the opposite direction of KH
• a train that is currently in a station,has no destination and is blocking an other train, is given a "random" destination (this is calculated deterministic) to drive to a new station. This can be disabled on each train by setting the no_forced_direction input
• if the KH_ST is full in one direction the KIO_LN in opposite direction or the exit of the turnout track are locked. What is locked depends on how full KH_LN is and if someone wants to enter from KH_LN (same for REV)
• a train is never stuck in turnout track, because after five trains passed (waiting_bound_KH in KH_deadlock_prevention.sctx) without the train to leave, the opposite direction is locked so that the train may leave. 
• it is possible to set a random destination for each train if a train currently doesn't have one, by setting random_mode to true