Reminds me of the old Cape Cod Route 6 from Dennis to Orleans. It was known as "Suicide Alley". It was three lanes with a center suicide lane for both to use for passing. Uncountable number of fatal accidents over the decades until they repaved it as a NO PASSING single lane in both directions, in the late 1980's. Absolutely insane idea as originally designed.
I remember being on a family vacation in Orleans, MA, in the 70's as a kid and seeing a horrendous multi-fatal accident scene involving a station wagon and some unknown other car so destroyed you couldn't tell what it was. Both cars wound up in the treeline. We stopped because my dad was an ER Surgeon at the time and wound up directing the medics on who to take first and who could...wait. I remember him ORDERING us to all stay in the car just down the street.
https://en.wikipedia.org/wiki/U.S._R..._Massachusetts