Highest traffic counts in your city?

[Flint1979]

Around 80,000 vpd  on I-75.

[Jmiles32]

For Northern Virginia, it's around 260k on I-95 just south of the Springfield Interchange.

[Flint1979]

For non interstate for Saginaw, Michigan I think it would be the stretch of M-58 between Hemmeter and Center. M-58 is old US-10/M-47 but is almost always called State Street and on the one way part also Davenport Avenue.

[6a]

For Franklin County * - I-270 between Oh 315 & US 23, 174,180 (2014 is the most recent traffic survey ODOT provides the public)
* - depending on how specific one wants to get with city boundaries. I'm not sure if that one mile of I-270 (between 315 & 23) is in Worthington or Columbus.

I understand the numbers given the proximity to 270, but E. Broad at Taylor Station Rd. still boggles my brain with 77,400.