My (Android) phone alerts me when traffic is bad near me. This can be handy at the end of the day because I work downtown. Except... it's telling me about traffic on roads I don't use to get home. Sure, there's spillover so it's not unhelpful, but it'd be great if I could tell it -- maybe by gesturing on a map -- what paths I care about, so it could tell me about those ones.
Does anybody reading this know of an app that does that, or a way to get Google Maps to do it? It needs to be fire and forget; I don't want to have to open the map app to look for red lines on it.
It feels like all the information is already there, if only my phone were making use of it.
(This would also let me know before I leave in the morning if traffic is still bad at the other end. At that time I don't really need extra information about traffic near my house; I need it 3-5 miles away.)