mostly based on a (non-precision/non-GPS) survey; the changeset would probably have qualified for source=survey

This is fairly new construction; cf. https://new.mta.info/press-release/mta-opens-new-ramps-connecting-randalls-island-queens-and-manhattan-robert-f-kennedy

Bing imagery actually seems to be from when this was under construction, with foundations for the new exit ramp already visible at the locations of https://www.openstreetmap.org/node/11939017634/history/1 and https://www.openstreetmap.org/node/11939017635/history/1 and vegetation appearing already cleared in the alignment of the new entrance ramp https://www.openstreetmap.org/way/1287299166/history/1
