This will create problems for multiple reasons in my opinion.

1) we assume this will switch from 4 lane 1-way street to a 2 lane each way 2 way street...however, due to all the underground cabling, many of our streets are constantly torn up...so we are talking 1 lane each way many times?

2) I already have several areas that gripe me because they have parallel parking spots right in front of intersections, effectively changing a 2 lane intersection to a 1 lane bottleneck with people wanting to turn left and go straight from the same lane (4th & Broadway going east is terrible about this). I just foresee this getting worse.

3) Of course now we have poor people who will get trapped at all the "dead ends" when they go from 2 way to 1 way...

fun fun fun.