I'm with Unthrottled here, can't believe that grown able bodied men wouldn't just get on and change their own wheel.
Common sense as with all things, i've seen people pull up in cars on full width hard shoulders so close to the nearside lane that their door mirror is still over the white line, and then proceed to get out of the offside door with lorries bearing down, people like that should catch the bus instead and do us all a favour.
If you've got a flat offside its not surely beyond the wit of someone to pull onto the nearside verge if possible.
As for that safe large van, they often enough work the other way, a dozing lorry driver might not be seen approaching because of said van....one tyre chap that came out to fit a new tyre when i had a NSR blowout on my lorry had cheated death not long previously, he'd just finished fitting a new tyre to another lorry's wheel between his van and the broken down lorry when he stepped back and a lorry smashed into his van ramming the hulk into back of the breadown, he dived over the armco and lived to tell....these breakdown chaps earn every penny.
Notice how at least one womble watches the approaching traffic when they are attending breadown, thats for good reason.
Lorries are whole different ball game, these days a typical lorry, mine for example, has 4 completely different tyre sizes so carrying spares is no longer normal....at one time we used to carry spare wheels and i have changed many a wheel in years gone by, the precious new breed couldn't manage this in most cases.
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