That's another good point, once you move the actual traffic lanes to the basically center space of the road, you only leave the driving space for these slow moving street cleaners to motor along, holding up traffic. Previously, they were all the way over, against the street curb, out of the way of traffic as it carefully went past them while they were cleaning the emptied out parking spaces at that curb.
With the streets that have gotten all the lane and re-curb work, you get a short batch of maybe 3 or 4 parking spaces in a cutout that is carved out next to blocked off bike lanes of concrete, then the spaces end and your street cleaner has to pop in and out of these parking spots, back into main traffic, go a bit further up a street, dive back into the 3 or 4 spots, pop out again. The cleaners can easily do that since they DO pivot in and out by design, but now they're going to have to watch their back like the devil since drivers won't be as observant as these Street Cleaners probably are.
I'm sure the Streets and Sanitation Drivers doing this will have some 'choice' thoughts about all the changes.....