Says the proposal is abandoned in 2011. The thing is OSM does not deal with real time data, the general rule is if the data is likely to change within the next month it doesn't go in OSM. A lot of OSM apps and servers cache the OSM dataset so anything like a road closed for one day would be stale before it even reached users.
Thats one of the big issues with OSM though, they have an attitude of "Thats not my problem, it should go in another dataset" but then no one actually has an alternative place to put it so users just miss out.