More detailed pathing + minor fixups. (There's still a lot missing, as there's a lot of smaller, redundant footpaths.)

Redo area around 슈퍼컴퓨팅지원동. (smaller parkways footpaths tbd.)

Specify whether kerbs have tactile paving

Determine the heights of kerbs

Specify leaf types

Determine place names

Specify path surfaces

Specify parking types

Survey if places (shops and other shop-like) still exist

Specify road surfaces

Specify building types

Specify road surfaces

Specify step counts

Survey tactile paving on steps

Specify which way leads up for steps

Specify whether steps have a ramp

Specify whether steps have handrails

Specify building types

Specify whether crosswalks have tactile paving

Specify path surfaces