Confusion; Distraction; Situational Awareness; Training / Qualification
Conflict Ground Conflict; Critical; Ground Event / Encounter Other / Unknown
Airport; Chart Or Publication; Human Factors; Procedure
Pushback of a B787. The crew has little experience pushing from this gate. The area [we were] pushing back [from] has a confusing amount of lines with no written detail. Push out driver pushed according to the guide in line the approaches the outer taxi and continues on the zipper line causing him to encroach on a live taxiway. When he realized that on coming traffic was approaching he did not hesitate to stop. He immediately brought the aircraft back in to the safe area. A near collision almost occurred. Two  aircraft almost hit wings. The only reason the push out driver realized that he was doing something wrong was due to the B737 heading was at about 30 mph. And to avoid a accident he rushed the aircraft back to the safe area.The gate mentioned has dashed line from the taxiway leading into the gate. The push out driver assumed that was the correct line for push out. If one views the diagram from above; you can see the confusion of lines with little explanation or definition. The push out driver did not understand why or what happened until he was shown and explained. We showed him the pictures and what  the correct push should have been. His comments were it is so different and difficult to what is what. At some gates and areas of push out; we have no clue of what some lines mean. Yes training is provided by the county but it's mainly about encroachments on to taxiways. There is no good detailed class with instructions of how of each gate works. This does not have a push out card with details. In many cases the tower just says clear to push with no instructions. This dynamic manning is not helping the cause . It's really making the crews unaware of specific gate pushes. Also another recommendation is a blue line on where to turn during a push.
Push Back crew member reported the tug driver was pushing the aircraft when they observed a conflicting aircraft taxiing and immediately towed the aircraft back to parking to avoid collision. The reporter stated he crew had little experience at this gate; the ramp markings are confusing and they receive insufficient training..