Looks like you cross the road when the signal allows it?

I believe ideally these types of crossings allow pedestrians and cyclists to use all four crossings at the same time. Similar to crossings in Japan.

Just my guess with a quick glance.

This is really the big problem, but it's solved if it's implemented with a simultaneous crossing for bikes & pedestrians (aka scramble intersections). Without that, turning left means waiting through two (sometimes three!) red lights.

Source: we have one of these here in Cambridge (UK) and they haven't implemented the simultaneous crossing. It's untenable, so cyclists (myself included) do all sorts of dangerous things just to avoid the ridiculous wait times.

The design includes traffic signals an left turn lanes.

Sure, ban private cars but what is replacing them?

Bike lanes need a button for left turns to halt traffic and let them through first on a green bike only light.