The subway map was designed with a customized color, brightness, and chroma by line to enable everyone, including the public and the color-deficient, to distinguish between lines and directions. Subway lines with colors difficult to distinguish were further accentuated by adding variations of line thickness.
Lines 2, 4, 7, and 9, consisting of colors that appear similar to color-blind individuals, were given colored borders to promote increased differentiation between the lines. Transfer stations, where two or more lines overlap, are marked with both the color and the number of each line for easier recognition as well.
|<General map>||<Map for both color-blind individuals and the public>|
The map incorporates the combined use of curved and straight lines to the straight-lined design of the current subway map to also promote easier line recognition for people with weak eyesight and presbyopia sufferers.