My partner grew up in Chichester. When he was a kid (mid-late 80’s) he remembers seeing bumper stickers and other paraphernalia with: “I survived route 4!” It has a legacy of car accidents.

Off topic, but I grew up in Manchester around the same time, and remember rt 101 being called “death highway.” Our annual vacation was to York Beach (classic). I recall being petrified and hiding in the back seat the entire drive to/from the coast.