This poll is referring specifically to roads that are part of the US Interstate Highway System, not just any numbered highways.
US residents: how do you (or people in your area) commonly refer to the local INTERSTATE HIGHWAY(S)? Assume this is casual conversation among people familiar with the area (not formal/professional/broadcast speech)
Haven't lived in USA or don't live near an interstate enough to talk about it
"Interstate Number" (e.g., "Today traffic sucked on Interstate Seven")
"THE I-Number" (e.g., "Today traffic sucked on the I-Seven")
"I-Number" (e.g., "Today traffic sucked on I-Seven")
"THE Number" (e.g., "Today traffic sucked on the Seven")
"Number" (e.g., "Today traffic sucked on Seven")
Some other phrase/name I will explain
"Interstate Seven" was used as an example because it does not exist.
