Should DOT mandate 68mph speed limiters?

Eventually, it's going to happen! In the 7 yrs since I've been driving, there have been more & more constraints put on trucks & truckers, and I see no end! CA (Or, WA, etc.) has the equivalent of govd trucks with their 55 mph speed limit. Keeps trucks in right lane, but also forms the 'wall of trucks' that merging traffic hates! I dont think that 68 mph is that bad---can still make decent time driving, but may lose up to an hour/day mileage vs. say 75 mph.

 

you state that in Europe trucks are limited to 56mph if thats what you want what is stopping you from getting a job over there.You sound just like a plant from one of those companys thats trying to get this passed.look i'm not P.OED becouse you can only go 65mph in a 75mph zone,but i bet you are the one doing 65mph in a 55mph zone so leave it alone,I dont need more government intrussion in my bussiness.

 

We were told in school that truck tires are only rated for 70 mph by the tire companys. I know you want to get from point A to point B in as little time as you can. But, why push your luck a blow out at 80 mph is not a good thing.

 

We see alot of independents (driving 75+mph) here in AZ in the summer blowing retreads---I-10 looks like a rubber granade war all along from Tucson to Phx!!

 

Used to also be 'fuel lines' until DOT made them redesign tractors to minimize!!

 

think about this......an endless line of 68mph trucks. Problem is 68 works on flat level, but in a hilly environment depending on loads some trucks will be faster than others causing stalemates, where the trucks are running side be side.


K

 

Did the math one day at 62 mph, if new tires (27/32") are used (where speedometer is calculated for) vs. a legal worn drive tire (4/32"), the speed differential will be around -2mph. So it becomes 66-68 mph, not counting hills!