1. ROLLOVERS
AGAIN ?
Yes: 10 in 1 month!
Nov/01

2. Here they are: 21/Oct LTI Graded Mitsubishi 4WD DC-PU
26/Oct FAC Graded Toyota Hilux 4WD DC-PU
30/Oct LTI/Ptd Blacktop Toyota Prado 4WD
9/Nov LTI Blacktop Mitsubishi 4WD DC-PU
16/Nov LTI Graded Toyota Hilux 4WD DC-PU
18/Nov FAC Blacktop Toyota Hilux 4WD DC-PU
19/Nov FAC Graded Toyota Prado 4WD
20/Nov Dead Blacktop Toyota Prado 4WD
23/Nov No inj. Graded Isuzu 4WD DC-PU
24/Nov FAC Graded Isuzu 4WD DC-PU
DC-PU: Double Cab Pick-Up
Nov/01

3. “Having fun” on graded road
21/Oct LTI
Rollover !!
Nov/01

4. Rollover !! 26/Oct FAC Straight graded road Yibal
Veered to the left. Pulled hard to the right & rolled: classic S pattern.
Nov/01

5. Rollover !! Straight blacktop Fahud-Nahada
Veered off to the right Overcorrected, rolled 4x Classic S pattern NO rollover bar
30/Oct LTI perhaps a Permanent Total Disability ??
Rollover !!
Nov/01

6. Veered off to the right. Pulled left but over-corrected & rolled 3x
Veered off to the right. Pulled left but over-corrected & rolled 3x. Classic S pattern /Nov: LTI
Straight Blacktop near Fahud: NIGHT
Rollover !!
Nov/01

7. Rollover !! Straight Graded road Bahja
Classic S-pattern: veered to the right, pulled left (overcorrecting) and then pulled right again and rolled /Nov LTI
Nov/01

8. Rollover !! Straight Blacktop Nimr to Rima
Not concentrating Trying to kill a fly! Overcorrecting: S pattern 18/Nov FAC
Nov/01

9. Rollover !! Straight graded road QA-Fahud Burst right rear tire
Car pulled left Lost control
and rolled
Rollover !!
19/Nov FAC
Nov/01

10. Rollover !! 20/Nov Fatality & LTI Blacktop road Fahud- Nizwa
Car moved right at high speed. Driver over corrected and got into an S pattern: Rolled & Flipped.
Nov/01

11. Driver tried to avoid some potholes in the poor road: pulled left then right. S-curve pattern!
Straight graded road Thumrait-Marmul
Rollover !!
23/Nov No Injury
Nov/01

12. Rollover !! Junction Marmul-Thuleilat
Driver pulled into junction at too high speed. Rolled off the road.
Rollover !!
24/Nov No Injury
Nov/01

13. Common features of these rollovers:
Speed (80 km/hr can be too fast !!)
All are 4 WD high Centre of Gravity cars
8 on straight roads
8 classic “S” curves:
driver loses concentration and veers slowly left or right
wrong steering reaction: pulls hard left/right
wrong braking reaction: brakes whilst steering
4 on blacktop roads at high speed
1 tyre blow-out, 1 junction/speed
Nov/01

14. They are strong (we think) They can go anywhere (almost)
4WD are great cars:
They are strong (we think)
They can go anywhere (almost)
You (almost) never get stuck
You sit high (good view)
They are powerful & feel good (macho?)
They are comfortable
They can carry a lot of load and people
BUT…….
Nov/01

15. But 4WD:
Have a very high CoG: this means that they are more sensitive to rollovers.
They do not brake that well: they are very heavy.
They do not steer and corner that well: they are heavy and high.
They give a false sense of security: driver feels invulnerable at any speed.
They are powerful and can go very fast: much too fast for their handling ability.
Nov/01

16. Rollovers & Centre of Gravity
Low CoG
High CoG
Would you drive these cars in the same manner when taking a corner or bend ??? Of course NOT !!! 4WD High CoG car: adjust your driving & speed.
Nov/01

17. When driving a 4WD: Adjust your driving style. Combination of:
Speed
Steering: no sudden changes of direction
Braking: start braking earlier, keep more distance
Keep heavy loads as low as possible: NOT on the roof! High loads make the car more unstable.
Keep loads balanced to the centre/middle.
Passengers are also load: they change the stability of the car.
Nov/01

18. The classic “S” curve rollover:
Mistake 1: lost concentration car moves slowly to the right (or left)
Mistake 2: pull hard left could roll here already
Roll?
Mistake 3: pull hard right
Roll!!
Mistake 4: braking & turning at the same time
Nov/01

19. The classic “S” curve rollover: How to avoid it !!!
Mistake: lost concentration car moves slowly to the right (or left)
Good re-action: Roll-out into the desert. Do NOT pull your steering wheel. Hold it tight and straight with 2 hands. Brake slowly to full STOP. Do NOT panic.
Nov/01

20. Your BELT can Save your LIFE
How to protect yourself against rollover?
Use a 2-WD instead of a 4-WD if possible.
If you drive a 4-WD: adjust your driving.
Never make violent adjustments in your steering & your braking, you must avoid an uncontrolled skid.
Make sure a 4-WD has a roll-bar !!!!!
Wear your seat belts !!!!!
Your BELT can Save your LIFE
Nov/01