On 20/11/23 12:51, Harry McNally wrote:
I found a Wikipedia article a long time ago that said road wear has a fourth order relationship to vehicle mass.
Fourth power law: https://en.wikipedia.org/wiki/Fourth_power_law
It quoted a US study and I haven't found it since.
Highway Research Board (1962). The AASHO Road Test: Report 7, Summary Report (PDF). Washington, DC: National Academy of Sciences—National Research Council – via Transportation Research Board. https://onlinepubs.trb.org/Onlinepubs/sr/sr61g/61g.pdf
The firmer tires used on electric vehicles, to make them more efficient, might make the situation worse.
ps: Just to get this back to Link's area of interest, the Internet could be used to implement road use charges, to better reflect the usage of vehicles. Perhaps electric scooters could also weigh the rider and impose a suitable penalty for increased road wear. ;-)
-- Tom Worthington http://www.tomw.net.au _______________________________________________ Link mailing list [email protected] https://mailman.anu.edu.au/mailman/listinfo/link
