[Hard to find if there was an earlier message on this topic, but road and trail conditions works too]
W&OD in Falls Church has had all the road crossings updated to allow the separate walking and biking lanes to stay separate at the crossings (until they end). However, in the process the trail was dug up a bit close to the crossings and repaved, but that repaving is rougher and not always smoothly connected to the prior trail. Not sure if that will be fixed or not. It is nice to not have to merge and split at each crossing.