This indicator shows the percent change in daily person hours of delay in 7 most populous counties and is listed as noted. The 7 most populous counties are: Miami-Dade, Broward, Palm Beach, Hillsborough, Orange, Pinellas, & Duval. This delay is on Florida Interstate Highway System road category. The FIHS consists of interstates, the Turnpike Enterprise, freeways, and other high speed, high volume roadways. The source for this indicator is the Florida Department of Transportation's Florida Highway Data Source Book.