Night Driving: Deer and Glare on a Rainy Two-Lane
It is 0200 on a rural two-lane North Carolina highway. You are driving a 62,000 lb tractor-trailer at 55 mph, the posted limit, with light rain falling. Your wipers are on intermittent and your headlights are on low beam. You have been driving for 4 hours since your last 30-minute break and have had only coffee. An oncoming pickup has misaimed headlights that glare across your lane. At the same time, you see a deer standing on the right shoulder about 150 feet ahead, facing the road. The road is straight, the shoulder is narrow, and there is a ditch beyond it. Traffic behind you is light but present.
1. What speed and lane position would you choose as you approach the deer and the oncoming glare?
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Reduce speed below the 55 mph limit-roughly 40–45 mph-because wet pavement lengthens stopping distance, the deer is close, and glare reduces your ability to see the shoulder. Keep the vehicle centered in your lane or slightly left of center only if it is safe and does not crowd the oncoming lane; do not cross the center line. Avoid staring at the oncoming headlights; look toward the right edge of your lane to hold position while using peripheral vision for the deer. Increase following distance to at least 5–6 seconds in rain. The shoulder is narrow with a ditch, so it is not a good escape path at speed.
2. How should you manage high beams and glare with the oncoming pickup, and what does fatigue add to the decision?
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Keep low beams while the pickup is approaching so you do not blind the other driver, even if that driver’s lights are misaimed. Once the pickup passes, switch to high beams if no other traffic is ahead, because high beams improve shoulder scanning for deer. Do not flash the oncoming driver as a punitive gesture; it can worsen glare and distract you. Fatigue is a separate hazard: 4 hours of driving with only coffee and a 0200 start means alertness is declining. If you feel drowsy, yawning, or drifting, pull into a safe well-lit area and take a break. Night driving requires more following distance and lower speed, not more caffeine and continued driving.
3. If the deer steps into your lane when you are about 100 feet away, should you brake hard or swerve? Explain.
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Brake firmly and progressively while keeping the vehicle in its lane. At 100 feet in a 62,000 lb truck on wet pavement, a swerve is likely to produce a rollover, a loss of control, or a head-on crash with oncoming traffic, and the trailer may whip or jackknife. Hard braking keeps the vehicle stable and reduces impact speed; if a collision is unavoidable, a controlled hit is usually safer than an uncontrolled swerve into the ditch or opposing lane. Release brake pressure if the wheels begin to lock, and steer only after speed is reduced and you have checked mirrors and the oncoming lane. After the hazard passes, stop and check the load and brakes.