Jackknife accidents are among the most dangerous types of truck crashes on California’s highways. These incidents occur when a truck’s trailer swings out at an angle to the cab, resembling a folding pocketknife. Understanding how these accidents happen and how to respond can save lives.

How Jackknife Accidents Happen

• Sudden Braking: Abrupt stops can cause the trailer to skid and swing out of control.
• Slippery Roads: Rain, oil, or loose gravel reduce traction between tires and pavement.
• Speeding on Curves: Excessive speed makes it harder to maintain control during turns.
• Improperly Loaded Cargo: Uneven weight distribution can destabilize the trailer.
• Mechanical Failures: Faulty brakes or worn tires increase the risk of jackknifing.

Dangers of Jackknife Crashes

• Multi-Vehicle Pileups: A jackknifed truck can block multiple lanes, causing chain-reaction collisions.
• Severe Injuries: The size and weight of tractor-trailers can cause catastrophic harm to motorists.
• Traffic Disruptions: These accidents often close highways for hours, affecting emergency response times.

Prevention Strategies for Truck Drivers

• Maintain Safe Speeds: Slow down on wet roads or curves.
• Brake Gradually: Avoid sudden stops whenever possible.
• Check Cargo Loads: Ensure weight is balanced and properly secured.
• Conduct Regular Maintenance: Inspect brakes, tires, and steering systems before each trip.

Tips for Other Drivers

• Keep a Safe Distance: Stay well behind large trucks to give yourself time to react.
• Avoid Blind Spots: Large trucks have limited visibility on their sides and rear.
• Stay Calm: If you see a truck losing control, slow down and steer clear safely.

Building Safer Highways

Jackknife accidents are often preventable through cautious driving, proper maintenance, and awareness of road conditions. By understanding the causes and practicing defensive driving, both truckers and motorists can help prevent these dangerous crashes.