was this one of you guys??

Doug33 wrote:
The AASHTO (American Association of State Highway Transportation Officials) striping standard for interstates is 10' stripe and 30' gap. However, some toll roads and other agencies use different standards. But I would think what you see in the video is the AASHTO standard.

As I indicated in a previous post I measured the line spacing on I86 here in Idaho.

Here is a link to the standard that Idaho uses which will verify the 50 foot spacing.

Idaho striping