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Old Aug 16th, 2023, 09:18   #517
Clan
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Quote:
Originally Posted by sixaparrat View Post
One problem, that's overlooked by most, is the weight of a BEV.
A Telsa Model 3 performance is 1850 kg or so, it's ICE equivalent, say BMW 3 series is 1500 kg or so, an increase of 340 kg. Across the board this will result in much increased damage to the sub-formation and substrates of roads, resulting in more roadworks, and more expensive (and more environmentally damaged future roads, because the damage caused is exponential to the increased weight.
I. e. In the dim distant past when I studied highway Engineering, lifetime of roads was designed for 25 years based upon the damage caused by Passenger Car Units (PCU).
Generally 100,000 PCU per day would wear out a road in 25 years.
However a 15 tonne lorry (the largest generally on the road at that time) caused the same damage as 300 PCU, nowadays a 38 tonner is worth 33,000 PCU.!
you will find these days as cars get heavier the tyres also get wider, so the pressure on the road is likely to be less or the same as previous cars, and trucks have even wider tyres .
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