> Bus routes across. Do they go up and over? Or do you still have to have the signals for cross traffic? If you need the signals for cross traffic what's the point of this?

These are all good questions, and I can't claim to know the perfect answers here, but it seem like ramps to get on/off the highway from the service roads would help. There would still need to be one to cross traffic travelling the other way, and I'm not sure what would be the best way to handle that.

If anything, reducing signals from every block to 3-4 intersections along half of Brooklyn would solve most of these issues too. Not to mention all the fatalities that plagued Ocean Parkway to begin with - now it can be a scenic walk/bike route, without having to worry about cars flying across on every street.

> Those vehicles get to the Prospect Expressway/Gowanus interchange. Now what?

Also a fantastic point. That stretch is congested, but nothing near the amount of time it takes to travel through southern Brooklyn. Getting to the Prospect Expressway takes upwards of 20 minutes alone.

I'm not exactly sure what could be done about that, but it seems like this would be a first step. There's a lot of traffic funneled through Exit 1/Fort Hamilton, and I wonder (as someone who's really not familiar with this stretch) if there's a better way to handle the bottlenecks. It seems lots of trucks go there, but not sure if truck-only hours would do the trick at all.