was this one of you guys??

marcsbigfoot20b27 wrote:
According to the DOT standards, every line is 10 ft long with a 30 ft space......so beginning of one white line to the next is 40 ft.

I counted 20 lines at the semi hood in 9.8 sec.
That is 20x40=800 feet in 9.8 sec.
60 sec / 9.8 = 6.1
6.1 x 800 = 4880 ft per min or almost exactly 55 mph.

I don't even think the F250 was even going 65, maybe 63 mph.

It appears to be a long bed (can't tell) and is shorter than a crew cab (extra cab).
Looks like setup and weight distribution.
Btw my math may not be totally correct....disclaimer before someone rips me a new one for being 2mph off.

I had to go to the Pocatello Airport this evening. I travel on I15 and I86 to get there. I measured the lane markers by counting how many there were between mile markers.

I counted 107 on I15 and I86. Thus the spacing here in Southern Idaho on the Interstates is about 50 feet.

For the Semi I counted 30 markers in 14.63 seconds which gives me a speed of 69.9 mph.

For the truck and trailer I counted 16 marker in 6.94 seconds which gives a speed of about 78 mph.