Traffic Accidents and First Aid | DGT Theory 2025

Traffic accidents are a leading cause of death and generate major social and economic costs. Here you’ll learn how to prevent them and how to act in an emergency. 🧠💡


📉 1. Main Causes of Accidents

  • 🧍‍♂️ Human factor: Responsible for 70%–90% of accidents.
  • 🛣️ Road and environment: Causes 10%–35% of accidents.
  • 🚗 Vehicle condition: Involved in 4%–13% of crashes.

🚸 2. Vulnerable Groups

👶 2.1 Young drivers

  • High crash rates between ages 14 and 29.
  • Frequent accidents during nightlife and commuting.
  • Risk factors: alcohol, drugs, inexperience, speeding.

👴 2.2 Older drivers

Reflexes, vision, hearing, and reaction time decrease. Higher risk at intersections and when merging.

🏍️ 2.3 Mopeds and motorcycles

Higher fatality risk. Issues: violations, no helmet, lower visibility.

🚴 2.4 Cyclists

Risk on weekends and conventional roads. Head injuries are more severe. Use caution when overtaking.

🚶 2.5 Pedestrians

Higher risk on interurban roads. Extra care with older adults and children (limited field of view, less attention, perception errors).

✅ 2.6 How to avoid pedestrian collisions

  • Reduce speed in school areas, near buses, and at garage exits.
  • Don’t signal pedestrians to cross if it isn’t safe.
  • Avoid stopping on the sidewalk.

🤝 3. Duty to Assist

You must help, reduce risks, and cooperate with the authorities. Do not alter evidence unless there’s danger. The first 60 minutes are crucial! 🕒

🆘 4. What to Do at an Accident (PAS)

🛡️ 4.1 Protect

  • Stop the vehicle in a safe place.
  • Wear a reflective vest, switch off the engine, avoid smoking.
  • Do not move the injured unless there is a greater risk.

📞 4.2 Alert

  • Call 112 and report: location, number of injured, hazards, your identity.

💊 4.3 Help

  • Prioritize the unconscious, those with bleeding, or breathing difficulties.
  • Do not give liquids or medication. Keep the injured person calm.

❤️ 5. First Aid

🔎 5.1 Initial Assessment – ABC Technique

Letter Meaning
A Open the airway (head-tilt / chin-lift)
B Look, listen, and feel for breathing
C Check circulation and possible bleeding

🚑 CPR – Cardiopulmonary Resuscitation

  • 30 chest compressions + 2 rescue breaths.
  • For children under 2 years, use only two fingers.

💉 Bleeding

  • Press, elevate, compress the artery.
  • Tourniquet only as a last resort. Record the time applied.
  • ⚠️ Do not cover external signs of internal bleeding.

💀 Shock

  • Pale skin, confusion, weak pulse.
  • Place in anti-shock position (legs elevated).

🔥 Burns

  • Do not touch the area or remove burned clothing.
  • Cool with cold water and cover with moist gauze.

📋 6. Dealing with the Authorities

Identify yourself, cooperate, and take tests if requested. Provide your details in accidents even if you weren’t directly involved.

🚐 7. Moving and Transporting the Injured

  • Only move the injured in extreme urgency.
  • Transport in a suitable vehicle, keeping head–neck–torso aligned.


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