As I said, NO bar room fights intended – I hope you can share that sentiment.
And you should NOT think I’m expecting someone “to spend time and money on a survey like this”
“Too many factors to even reach a marginal figure”
Thanks for your personal view – although I don’t know what “figure” you have in mind.
OTOH, any information is better than no information, and this forum makes possible the benefit of additional observations and experiences by others – I hope you aren’t trying to discourage others from participating (or even starting threads)
“Road construction ( asphalt or concrete )”
yes, observations and experiences welcome
“ambient temperature”
yes, observations and experiences welcome
“tire thread of the majority of vehicles”
yes, observations and experiences welcome – although that probably averages out to be about the same on busy, continuous ample traffic stretches of road
“average vehicle weight”
yes, observations and experiences welcome – although that probably averages out to be about the same on busy, continuous ample traffic stretches of road
“vehicle speed”
yes, observations and experiences welcome – although that’s a relatively narrow range on busy, continuous ample traffic stretches of road
“the ground temperature”
yes, observations and experiences welcome – in fact, I left out the observation that in summer months in some places, road surfaces will remain warmer than air temp for some time after dark,
while in winter months in some places, road surfaces will remain cooler than air temp for some time after daybreak