Factors Involved in Accidents
- ⚠️ Human factor: causes between 70% and 90% of accidents.
- 🚧 Road and environment: between 10% and 35%.
- 🚗 Vehicle: between 4% and 13% due to mechanical failures (tyres, brakes, steering...)
🌟 Characteristics of Accidents
- On duty: during work.
- In itinere: journeys between home and work.
🌄 High-Risk Areas and Times
- ▶️ More accidents on straight sections than on curves.
- 🚖 Higher mortality on interurban roads.
- 🌜 Work start/finish times and holiday periods.
⚡️ Human Factors: Risks and Prevention
⏱️ Speed
Speed directly affects reaction, braking, and stopping distances:
| Speed (km/h) | Distance traveled in 1 sec |
|---|---|
| 50 | 14 m |
| 100 | 28 m |
| 120 | 33 m |
With rain the braking distance doubles ☔️ and with snow or ice it can be up to 10 times longer ❄️.
🛌 Fatigue and Sleep
- 🛌 Causes between 20% and 30% of occupational accidents.
- ⏰ Drowsiness is dangerous even before you actually fall asleep.
- ✔️ Prevention: rest every 2 hours or 200 km.
🩸 Illnesses and Medication
- Consult your doctor for chronic illnesses or medicines that may affect driving.
- ⚠️ Do not self-medicate or mix with alcohol.
🌡️ Heat
- 35ºC ≈ effects similar to 0.5 g/l blood alcohol 🚫.
- Recommendations: light clothing, stay hydrated 🥛, avoid direct sun.
👁️ Distractions
Responsible for 40% of accidents. Causes include:
- Using a mobile phone 📱
- Smoking 🚬, eating 🍽️, operating the GPS 🔍
- Intense conversations or looking out the window 🌍
🍷 Alcohol
Affects judgement, reaction, vision, and coordination.
| Type of driver | Max limit (mg/l breath) | Limit (g/l blood) |
|---|---|---|
| Novice and professional drivers | 0.15 | 0.3 |
| All other drivers | 0.25 | 0.5 |
⚠️ Safe level: 0.0 g/l
🧘 Drugs
- 🌿 Cannabis: drowsiness, reduced attention.
- 🧄 Cocaine: aggressiveness, overconfidence.
- ✨ Ecstasy: illusions, post-use fatigue.
- 💫 LSD: hallucinations, flashbacks.
- ⚡️ Amphetamines: impulsiveness, rebound effect.
🚨 Penalties: Up to €1,000 + points loss + possible prison sentences 💔.
🚗 The Vehicle as a Risk Factor
- 🌃 Tyres: check pressure and wear regularly.
- ⛔ Brakes: periodic checks; avoid continuous braking on descents.
- 🚜 Suspension: greater comfort and safety.
- 🔙 Steering: essential for safe maneuvers.
- 💡 Lights: to see and be seen.
⚖️ Passive Safety
- 🚗 Bodywork: absorbs impact energy.
- 🚛 Rear and side underrun protection against wedging.
- 🕶️ Laminated glass: greater safety.
- 🛎️ Seat belt: mandatory on buses too.
- 🚁 Airbags: complement the seat belt.
📈 Road and Environmental Conditions
- 🌪️ Wind: hold the steering wheel firmly and reduce speed.
- ☔️ Rain: risk of aquaplaning, reduced visibility.
- 🌫️ Fog: use appropriate lights and keep distances.
- ❄️ Snow and ice: drive in higher gears, avoid hard braking, use chains if required.
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