Thanks to all, especially Irieworld & Rob for responding to my questions.

It seems that it's safe to say that I won't be solicited for a ride except by charter taxis. I just make sure they have a red plate & then I make my offer & wait for agreement before getting in the cab.

I guess I'll learn a lot more once I get there, as I haven't been able to determine if I raise my hand to flag a taxi if both route & charter taxis would stop. It would be clearer to me if route taxis had designated stops along the road, such as bus stops. But that doesn't appear to be the case. It seems that there isn't room to allow that on the streets.

It also appears that charter taxis do not charge pp, as route taxis do. Am I correct? So Rob, when you mentioned most charter cabs would accept $500 JMD beach to cliffs, that would be for 2 people (as well as 1)? I get your point that it's all negotiable, but I don't want to attempt to negotiate for a price acceptable for one person, when there are two of us riding. The number of people riding variable is confusing as private airport transfers seem to be quoted pp, or "1 - 3" etc. To get to the point, do charters typically negotiate pp or per trip?

Thanks for your patience, time & help!