Which action could be a poor practice when entering or driving in a tunnel?

Which action could be a poor practice when entering or driving in a tunnel?

• A. Use appropriate lighting and avoid sudden braking.
• B. Maintain a steady speed and follow others in the lane.
• C. Increase following distance and monitor surroundings.
• D. Abruptly change lanes without signaling.

Answer: (D)

In a tunnel, every driver’s movements should be predictable and deliberate because space is tighter and lighting changes can affect depth perception and reaction time. Abruptly changing lanes without signaling is a poor practice because it creates a sudden, unanticipated maneuver in a confined space. Other drivers may be in or near your blind spots, and without a signal, they can’t anticipate your lane change in time, leading to side-swipe or rear-end collisions. Signaling before shifting lanes gives everyone a clear cue about your intention, allowing them to adjust smoothly. Safe alternatives shown in the other options include using proper lighting to ensure visibility, avoiding sudden braking to prevent rear-end crashes, keeping a steady speed, following the vehicle ahead, increasing following distance, and staying aware of surroundings. All of these help maintain a stable, predictable flow of traffic through the tunnel.

In a tunnel, every driver’s movements should be predictable and deliberate because space is tighter and lighting changes can affect depth perception and reaction time. Abruptly changing lanes without signaling is a poor practice because it creates a sudden, unanticipated maneuver in a confined space. Other drivers may be in or near your blind spots, and without a signal, they can’t anticipate your lane change in time, leading to side-swipe or rear-end collisions. Signaling before shifting lanes gives everyone a clear cue about your intention, allowing them to adjust smoothly.

Safe alternatives shown in the other options include using proper lighting to ensure visibility, avoiding sudden braking to prevent rear-end crashes, keeping a steady speed, following the vehicle ahead, increasing following distance, and staying aware of surroundings. All of these help maintain a stable, predictable flow of traffic through the tunnel.