Motorhomes and the white peg rule

I'm not sure if they measure the distance between the vans though 

Presumably they don't. I expect though as the car parks thin out the motorhomes are unlikely to be parked tight together. I have no problem with such arrangements as long as they don't have an adverse effect on me. 

see above post

Well no not really because only the CC stick to the rules, they have the array of coloured pegs and gaps fastidiously maintained by the hall monitors. Everybody else ( 95% plus of the market) has a free will approach with the opportunity for blatant violation of this rule. By your logic there should be devastation requiring professionals to clear up the aftermath, a bit like air crash investigation.

Or

Possibly the rules, the measuring, the monitoring are all a bit silly. I just ask where I need to place the van when booking in. They just say along the LH edge (example) and without pegs, measuring, or monitoring I am miraculously still alive. 

If that is what you believe that is entirely up to you

The statistics are available from the Home Office. 

'FIRE STATISTICS TABLE 0302: Primary fires1, fatalities2 and non-fatal casualties in road vehicles by motive4 and vehicle type, England'

This lists give a breakdown of every fire related fatality and injury due to fire. Caravan fires are contained in the 'other vehicles', which include:

'Other road vehicle includes: Bicycle, Caravan on tow, Caravan unspecified, Minibus, Motor Home, Multiple vehicles, Other, Tanker, Towing caravan elsewhere and Trailers.' where, 'Fire-related fatalities are those that would not have otherwise occurred had there not been a fire'.

If you pick a time frame by year(s) you can analyse the data.

As you can see from this report, fire related fatalities in caravans are infinitesimally small. This is the HO figures not mine, be comforted that the hobby seems to be safer than flying with respect to fire related deaths.

The report is available on line, just look up the reference, it is a government publication, not made up, its real and available for all to read. 

They document details every fire related incident in the UK, for every location (in a series of reports). It is not dependant on where the vehicle was, it is for ALL fires in the types of locations listed.

There is one for dwellings as well but caravans, trailers, and motorhomes are in the vehicle category, see definitions below. 

As posted:

'Other road vehicle includes: Bicycle, Caravan on tow, Caravan unspecified, Minibus, Motor Home, Multiple vehicles, Other, Tanker, Towing caravan elsewhere and Trailers.' where, 'Fire-related fatalities are those that would not have otherwise occurred had there not been a fire'.

Which bit of the above definition do you doubt. I thought 'Caravan on tow, Caravan unspecified, Motor Home, Towing caravan elsewhere and Trailers.' pretty much nailed it.

The report is in relation to as ET says highways not in other areas,

ps ,the c&cc have the same 6mtr fire safety gap

The report is for all incidents, page 1 clearly states ' (a) any fire that occurred in a (non-derelict) building, vehicle or outdoor structure,(b) any fire involving fatalities, casualties or rescues,(c) any fire attended by five or more pumping appliances.

Location is not referenced at all, the reports record any fire attended by the fire brigade analysed by category. Caravans are in the motor vehicle category, which is logical.  

The description the section is 'Caravan on tow, Caravan unspecified, Motor Home, Towing caravan elsewhere and Trailers. 

So to clarify:

Caravan on tow, Caravan unspecified, Towing caravan elsewhere. 

So if you care to read the government statistics of fires in caravans from the home office report for Caravan on tow, Caravan unspecified, Motor Home, Towing caravan elsewhere, and Trailers, (regardless of where they are) then you will see that these incidents are very, very, very, rare.