stop stick
n.— «Knudsen raced toward them and they had to swerve their cruisers on the narrow road, Sgt. Tom McCabe said. Knudsen then raced down Boynton Beach Boulevard; “stop sticks” set just east of Interstate 95 flattened Knudsen’s tires, but he drove 5 miles on the expressway until he was stopped.» —“Police Blotter” Palm Beach Post (Florida) Mar. 19, 1999. (source: Double-Tongued Dictionary)
Further reading
Is there such a thing as a “neutral” accent, and if so what does it sound like? And that quirk in the way southern Californians talk about freeways. They’ll say things like take the 405 and get on the 8. Why the definite article...
Why do southern Californians refer to interstate thoroughfares with the definite article, as in the 405 or the 8? This usage is a result of the history of freeways in Southern California, and is heard in a few other places, including Phoenix...