BTW: LANSING - State Police and the Department of Transportation [[MDOT) are using sensors buried under Michigan's highways to crack down on overweight trucks.
http://blog.mlive.com/cns/2009/02/hi...verweight.html
I guess if there not a problem then there would be no need for the sensors. Read the article.
"MDOT’s weigh-in-motion scales reported that approximately 1.5 million [[4.2%) of 37 million commercial motor vehicles weighed for the period October 1, 2008 through September 30, 2009 were overweight. Also, our analysis of 50 transport permits issued for overweight vehicles and loads indicated that those overweight vehicles were over the Michigan weight limits by an average 43.5%. Using USDOT information regarding costs to repair Michigan roads and bridges, we estimated that damage from overweight vehicles for the period resulted in an additional $135 million in Michigan road and bridge repair costs."
http://audgen.michigan.gov/comprpt/docs/r591017210.pdf
Sorry, that's the best I can do with a 5 minute google search.
/sarcasm