Kingfisher,

I didn't pick up on a horn honking code at the intersections, but they do honk their horns constantly. From what we could tell, it was primarily when they were driving around sharp/blind corners to warn oncoming traffic. We were often driving in 20 or so passenger Toyota buses, which were too big for the roads we were on. Especially when we got out of town and into the countryside. They also honk at any pedestrians, dogs, goats, cows, etc. that may be in the road.

What part of Jamaica were you in when you visited?