CMSC Driver's Ed Practice Test 2026 – Comprehensive Exam Preparation

The acronym SMOG is a helpful mnemonic that outlines the steps a driver should take when changing lanes to ensure safety on the road. The correct interpretation of SMOG is Signal, Mirror, Over the shoulder, Go.

Beginning with "Signal," the driver indicates their intent to change lanes, which communicates with other road users that a maneuver is about to happen. Following that, "Mirror" reminds the driver to check the rearview and side mirrors for any vehicles that may be in the blind spot or approaching quickly. The next component, "Over the shoulder," instructs the driver to physically turn their head to check the blind spot, ensuring there is no one in the adjacent lane that might not be visible in the mirrors. Lastly, "Go" signifies that once all checks are satisfied and it’s safe to do so, the driver can proceed with the lane change.

This systematic approach helps prevent accidents and enhances the driver's awareness of their surroundings while performing the lane change. Understanding this sequence not only aids in maintaining safety but is also a crucial part of defensive driving practices.