Generic rules for No-equilibrium phase transition.

 
trafic

This picture  represents a traffic jam on a city road in a rush hour.
Usually a 'jammed' state occurs spontaneously from a 'free flow' state
when certain parameters (velocity of cars or breaking of traffic rules)  change.
This is an example of non-equilibrium phase transition. Unlike equilibrium, the
jammed patch can still move with certain velocity. Other such non-equilibrium
phase transitions include spreading of fluids, synchronized firing of neurons,
roughening of surfaces. 
 
In equilibrium, we have certain guidelines on 'what kind of systems can
exhibit a phase transition'.  Could we  say anything generic about non-equilibrium
phase transitions ?





Ref :

 arXiv:cond-mat/0405049 [ps, pdf, other][Euro. Phys. J. B 41, 223 (2004)]
Title: Modelling one-dimensional driven diffusive systems by the Zero-Range Process