Final answer:
The statement is true. The motorist must execute the decided upon maneuver to reestablish an open space zone.
Step-by-step explanation:
The question is asking whether it is true or false that when using the IPDE defensive driving strategy to manage space zones, the motorist must execute the decided upon maneuver to reestablish an open space zone.
The correct answer is true. The IPDE strategy stands for Identify, Predict, Decide, and Execute. When a driver identifies a potential hazard or danger in their space zone, they should predict what might happen next, decide on the best course of action, and then execute that maneuver to ensure an open space zone.
For example, let's say you're driving on the highway and the car in front of you suddenly slams on their brakes. In this situation, you would identify the hazard, predict that you may need to stop quickly to avoid a collision, decide to execute an emergency stop, and then actually perform the maneuver to create an open space zone behind your vehicle.