The problem is that in their eagerness to help, your informants may underestimate distance and overestimate road conditions. If a Jamaican tells you that a road is bad, believe him it is probably impassable. In Jamaica the term is still used frequently and indiscriminately to estimate distance. Driving in the city may test your mettle. Plan your route ahead of time, expect traffic jams, maniacal drivers, malicious pot-hole, major air pollution and do not be surprised if the traffic lights are not working.
Jamaican drivers are neither the most cautious nor the most courteous in the world.
They speed, pass on the wrong side, stop in the middle of the road to have a chat and honk or yell at other drivers who cross them. In rural areas, be prepared for your appearance to cause comment, especially in remote areas. Not to mention again the infinite variety of potholes. Freelance Guides will volunteer to show you the way. Make discreet inquiries before accepting their services and agree on a fee before setting out.