Here in Houston we have Dallas and Pierce Streets downtown, but the exit sign on IH 45 lists them as "Dallas Ave Pierce Ave"...and something similar happens on IH 69 heading northbound: Elgin Ave/Tuam Ave (they're also streets).
Then we have the confusion between N Post Oak Lane, Post Oak Blvd; N Post Oak RD, South Post Oak Lane, and South Post Oak Road: none of which connect or intersect to each other.
Then there are the streets that have multiple, disconnected sections often in very different areas of town: multiple Ella Blvds, TC Jester Blvds