The seating arrangement on the high-speed rail is based on following the early airplane seating pattern. The second-class seats of high-speed rail generally adopt the "3+2" seating arrangement, where A and F represent window seats, C and D represent aisle seats, and B represents the middle position of three people in ABC, so ABCDF has only five letters without the letter "E".

For example, if the seat on a passenger's high-speed rail ticket is 07C, then the passenger should sit in the aisle seat in the seventh row. First-class seats are arranged in "2+2" chairs, A and F represent window seats, and C and D represent aisle seats. Since there is no middle seat, of course, there are no letters "B" and "E" for middle seats, only ACDF.

Extended data:

The rules for the railway department to formulate the seat number of the national EMU are: the number on the ticket indicates the seat number, and the seat position is indicated by different letters according to the seat. For example, the second-class seat of the bullet train has five seats in each row, which are represented by the letters A, B, C, D and F * * * * respectively; First-class seats, four seats in each row, represented by a, c, d and f.

Because the early airplanes were mostly single-aisle, each row generally had six seats, namely A, B, C, D, E and F, thus forming a seating pattern with AF by the window, CD by the corridor and BE in the middle position.

People's Network-Why is there no E in the second-class seat number of high-speed rail? Follow the early airplane seating pattern.