[xianshou]

A shame this came out too late to be added to XKCD's "Map Projections" comic. I'd call it the "Manhattan Uzbekistan Projection."

[fishtoaster]

If I understand map projections correctly, isn't this just whatever projection google maps uses (Mercator) with an overlay?

I probably don't really.

[kilovoltaire]

Yes this is definitely just Mercator. But you could reproject in a Manhattan-relative way, such that this larger grid actually looks like a grid (just like latitude and longitude do in Mercator) and that might be a... pointless new projection.