All subway maps around the world connect stations and lines, but the way information is displayed varies from city to city. If you compare the characteristics of Seoul, Tokyo, New York, and Taipei, it becomes much clearer what you should read first before traveling.
Seoul: Numbers, colors, and wide transfer network
The Seoul metropolitan area route map displays route numbers, colors, and various metropolitan railways. Since you can transfer to multiple lines at the same station, it is recommended to check the line name, direction, and transfer section in order.
Tokyo: operator and route symbols
Tokyo often has close subway connections and lines from other rail operators. In addition to the line color, you can easily find the actual platform by looking at the operator, alphabet symbol, station number, and train destination.
New York: Service letters, numbers and express
In New York, multiple services can share the same color main line section, so letter and number symbols are key. You must check the difference between Local and Express stopping stations and the Uptown and Downtown directions along with the destination station.
Taipei: Route colors and multilingual markings
In Taipei, you can see Chinese, English, and Pinyin notation along with the colors and route symbols. Before traveling, repeating the various markings of your destination station on the route map and in the game will help you read local guides faster.