They’re also significantly narrower than they need to be to stop a car: https://gothamist.com/news/security-measures-on-hudson-river-greenway-serve-as-reminder

They’re also significantly narrower than they need to be to stop a car: https://gothamist.com/news/security-measures-on-hudson-river-greenway-serve-as-reminder-of-terror-attack https://gothamist.com/news/security-measures-on-hudson-river... Still, I guess they’re better than the concrete jersey barriers they installed initially, and still have in some places along that route.