The value of roll over protection.

**JDNSW** · 27th November 2011, 12:05 PM

Just to put it in perspective - the SMHEA was, in the 1950s, the first organisation to introduce the mandatory fitting and wearing of seat belts (anywhere) for a large number of vehicles, mostly Landrovers. Their experience was that following this, the number of fatalities in motor vehicle accidents was reduced from a very high figure to zero (except for those not wearing the belts). It is worth noting that none of these vehicles had roll cages, or, for that matter, retracting seat belts, or belts or fitting to ADRS!

Obviously there are exceptions, as shown by the examples quoted earlier, but the statistics do not show that deaths and injuries for rollover accidents are a major concern. Certainly, the statistics show that when fatal accidents are concerned, rollovers are more highly represented in four wheel drives, although I have not seen any figures to suggest that they are high for Defenders, specifically. What is usually glossed over in these figures is that the actual fatal accident rate for four wheel drives is low compared to other types.

And the number of fatalities related to rollovers is very small compared to those related to failure to wear seatbelts or, even more, driver blood alcohol levels.

The situation in offroad competition driving is very different, and here rollover protection is appropriate. And probably also for those who drive on (or off) the road as if they are in a competition. But for most drivers, I suspect the relative lack of body roll control in a Defender frightens them from undertaking driving that is likely to result in a rollover. (Probably should exclude from this a low speed lying on its side offroad - but this is unlikely to result in death or serious injury provided a seat belt is worn and you keep your arms in the vehicle.)

John

**uninformed** · 27th November 2011, 01:12 PM

Originally Posted by bblaze

The mob I am working for atm build a tray that is a certified ROPS, also been fitting internal ROPS to hiluxs and prados. The design of these is they bolt to the floor at the base of the B pillar and have at least one anchor point through the B pillar at about window height, some have another mount near the roof. These are all certified
cheers
blaze

A tray is one thing that is easy to do well. As for the Hiluxs and Prados, well as I said, they are a different construction to a Defender and this is the big difference....you would not bolt a cage to the floor of a Defender, especially a truck cab!

**Allan** · 27th November 2011, 02:56 PM

Just looking through a TD5 workshop manual and came across a "Beach Bar" used by militery vehicles only but was introduced for fitment to all 02MY soft top vehicles. I Have noticed our ninety has a ber behind the seats but no hoop. I may look at getting one to see if it can be fitted.

Allan

**rick130** · 27th November 2011, 03:00 PM

Originally Posted by JDNSW

[snip]

Obviously there are exceptions, as shown by the examples quoted earlier, but the statistics do not show that deaths and injuries for rollover accidents are a major concern. Certainly, the statistics show that when fatal accidents are concerned, rollovers are more highly represented in four wheel drives, although I have not seen any figures to suggest that they are high for Defenders, specifically. What is usually glossed over in these figures is that the actual fatal accident rate for four wheel drives is low compared to other types.

And the number of fatalities related to rollovers is very small compared to those related to failure to wear seatbelts or, even more, driver blood alcohol levels.

[snip]
John

John, it'd be interesting to break down the figures (if available) by region and state as I'd reckon from anecdotal reports that roll overs contribute significantly to fatalities and injuries in the NT but then most of those casualties are caused by people riding in trays and not wearing seatbelts when in the cab.
Take those out and it'd be an interesting comparison state by state.

**JDNSW** · 27th November 2011, 03:08 PM

Originally Posted by rick130

John, it'd be interesting to break down the figures (if available) by region and state as I'd reckon from anecdotal reports that roll overs contribute significantly to fatalities and injuries in the NT but then most of those casualties are caused by people riding in trays and not wearing seatbelts when in the cab.
Take those out and it'd be an interesting comparison state by state.

The only actual figures I've seen are in some of the Monash University reports. But they do not break down by state and do not break down by vehicle model, only class of vehicle.

Most fatal accidents involve either drink driving or failure to wear seatbelts (or both) - I suspect that if you remove these from the rollover statistics the numbers would be pretty small, probably too small to draw any useful conclusions.

John

**Allan** · 27th November 2011, 03:12 PM

Just found this listing, no price guide though.

Terrafirma Roll Cages - Safety Devices Accessories for Land Rover ...

Allan

**PAT303** · 28th November 2011, 09:29 AM

Originally Posted by JDNSW

The only actual figures I've seen are in some of the Monash University reports. But they do not break down by state and do not break down by vehicle model, only class of vehicle.

Most fatal accidents involve either drink driving or failure to wear seatbelts (or both) - I suspect that if you remove these from the rollover statistics the numbers would be pretty small, probably too small to draw any useful conclusions.

John

The roll overs we have here mostly cause spinal injuries not deaths,the deaths we have are caused by the vehicle hitting tree's and having wide open roads the speeds are high and nothing short of a rally spec cage would help,some of the vehicles are in pieces or twisted to the point of not being able to tell the make or model,drink driving is a big one as is excessive speed.I look at a bar as a one shot deal,it only has to work for one crash. Pat

**tuffrangie** · 8th December 2011, 08:58 PM

Just found this:

[ame=http://www.youtube.com/watch?v=NXR_M8T2qC4&feature=related]Land Rover capotando - Indoor de Mogi - YouTube[/ame]

Bet this bloke wishes he had a roll cage!

**newhue** · 8th December 2011, 10:32 PM

That's a pretty flat cab for a relatively low speed roll, and one roll at that.

Does anyone recall a you-tube vid of a prado rolling several times down a hill after sliding whist reversing down a dirt track. I just wonder how the trusty 130 would cope. I'm pretty sure the good wife won't.

**Ranga** · 8th December 2011, 10:52 PM

Originally Posted by newhue

That's a pretty flat cab for a relatively low speed roll, and one roll at that.

Does anyone recall a you-tube vid of a prado rolling several times down a hill after sliding whist reversing down a dirt track. I just wonder how the trusty 130 would cope. I'm pretty sure the good wife won't.

That was a Pajero wasn't it?

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Thread: The value of roll over protection.

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