It is VERY important to keep your distance at all times. I've found it to be the best way to avoid accidents. If you leave an extra car length or two in every direction, you will have time to react to the consistently unpredictable behavior. Maintaining a steady rate of travel is also very helpful. It's best to avoid reacting to the abrupt acceleration and stops of other drivers. Let them pass you and avoid changing lanes unless absolutely necessary. When you do make a lane change, do it very gradually, especially when there are other cars near you on a highway. Finally, be prepared for cars backing out into busy traffic at the most unusual places, even when there is plenty of room for a three point turn or looping around to drive out front first.
And turn signals are also totally USELESS in this country.
You can be stopped waiting to turn left,
... your turn signal on and the stupid nitwits will still pass you on the left
..... while crossing over the double yellow line.
Another thing Dominican drivers do not understand is "Wait".
Light turns green, WHY are the 20 cars in front of them not moving that instance?
Take their horn away and they will go crazy beating on the steering wheel.