all these 3 wheelers are plying across Karachi "UNOFFICIALLY" with support from Traffic Police 'mafia'.
RTA a department in Govt of SINDH is getting their fair share to act blind. Therefore there is no official allocation of route maps & fare.
Intersections over major arteries are operating as interchange - junction i.e from sohrab goth a person can take 3 wheeler towards korangi industrial area, towards city centre tower towards surjani town.
So to reach SITE or Karsaz from sohrab goth - tarvel in upto liqauatabad alkaram square under the bridge junction change to 3 wheeler towards SITE or Karsaz.
etc etc etc