Final answer:
A planned search pattern in driving primarily helps in reducing accidents by increasing situational awareness and enabling proactive driving decisions.
Step-by-step explanation:
Using a planned search pattern helps drivers reduce accidents. When a driver has a systematic approach to scanning the road for potential hazards, traffic conditions, and changes in the environment, they are better prepared to anticipate and react to situations promptly and effectively.
This proactive driving strategy decreases the chance of collisions by maintaining a high level of situational awareness and allows the driver to make safer driving decisions.