Our test was not scientific, but was designed to assess the real-world usability of adaptive cruise technology. Testing took place about 50 miles north of New York City, near West Point, on four-lane paved public roads. The location allowed for moderate traffic conditions, as well as an assortment of turns and hills. The weather on testing day was clear and sunny, and all the roads were dry. Speeds were measured using the in-car speedometer; no additional equipment was used.