What could possibly go wrong?------Shared roadway proposed in Grand Rapids

Shared roadway proposed in Grand Rapids | WOODTV.com:
"GRAND RAPIDS, Mich. (WOOD) — The City of Grand Rapids is proposing a new shared roadway to make one of the city’s streets more bicycle-friendly.

The city is proposing to make Jefferson Street north of Burton Street a shared roadway. In short, the street would have two bicycle lanes and one lane for vehicles. It would also have parking on both sides.
Vehicles would share the center lane with oncoming traffic. 
When facing oncoming traffic, both vehicles would yield to bikes before merging to the bike lane. Then when the vehicles merge into the bike lane it would allow for enough room for both to pass.
If you are a bicyclist, you would treat the lane like a normal bike lane and would have to look out for merging vehicles.
The concept is similar to narrow residential roadways, like those in the Heritage Hills neighborhood."