If you are a high-speed rail expert, then you must know something about the seat number of high-speed rail. The seat number of the high-speed rail is composed of letters and numbers, such as A1, C3, F5, etc. But have you noticed that there is ABCDF in the seat number of the high-speed rail, but there is no E. Why is that?Could it be that e is forgotten?Actually, there is a very interesting story behind this.
To understand why the high-speed rail seat number does not have an e, we must first know how the high-speed rail seat number came about. In fact, the seat number of the high-speed rail was not invented by the railway department itself, but the setting of the aircraft space was followed. In international practice, the seat number of an aircraft class is composed of letters and numbers, such as A1, B2, C3, etc. The letters indicate the position of the seat in a row, and the number indicates the position of the seat in a column. So how are the letters of the aircraft class assigned?
Early airplanes were mostly single-aisle, with 6 seats per row, A, B, C, D, E, and F. These letters are not arranged randomly, but have a certain pattern and meaning. A and F represent the window position, C and D indicate the location of the aisle, and B and E represent the middle position. The benefit of this is that travelers can choose the right location according to their preferences and needs.
Passengers who like to enjoy the scenery or need to rest can choose the window position, those who need to get up easily or move their legs can choose the aisle position, and those who are not fussy or want to save money can choose the middle position. Over time, the six letters A-F not only represent the meaning of order, but also form an international convention of using specific letters to represent the window, the aisle and the middle seat.
With the development of aircraft technology and design, there have been many and varied changes in aircraft cabins. For example, some aircraft have a dual-aisle design with 8 or 10 seats per rowSome aircraft have a three-aisle design with 9 or 12 seats per row;There are also aircraft with a four-aisle design with 16 or 18 seats per row. In this way, the original six letters of A-F are not enough.
As a result, more letters have been added to the cabin to indicate more positions. For example, on a two-aisle aircraft, when there are 8 seats in each row, it can be represented by A-B-C-D-E-F-G-H;On a three-aisle aircraft, when there are 9 seats in each row, it can be represented by A-B-C-D-E-F-G-H-K;When there are 12 seats in each row, it can be represented by A-B-C-D-E-F-G-H-J-K-L-M.
However, no matter how it changes, the window position is always a and the last letter, the aisle position is always c and d and the third and fourth letter from the bottom, and the middle position is always b and e and other letters.
The high-speed rail seat number only borrows the meaning of the letter of the aircraft class, and does not completely copy the arrangement of the aircraft class. There are three types of seats on high-speed rail: business class, first class, and second class. Because the structure and function of high-speed rail and airplanes are different, the seat arrangement of high-speed rail also has its own characteristics and needs.
Business seats have a 2+1 seating arrangement, 1st class seats have a 2+2 seating arrangement, and 2nd class seats have a 3+2 seating arrangement. The purpose of this is to meet the needs and budgets of different travelers, while maintaining the operational efficiency and safety of high-speed rail.
High-speed rail only retains the convention of aircraft class letters to indicate the location of the window and aisle, but not the convention of indicating the middle position. In other words, high-speed rail only uses the letters A, C, D, and F to indicate the seat position. A and F represent the window position, and C and D represent the aisle position. As for the middle position, it is not represented by any letters.
The advantage of this is that travelers can more easily identify their desired location without having to memorize too many letters. At the same time, it can also save some letters and avoid duplication or confusion. In Business Class, there are only three seats in each row, and if the letters are assigned according to the way the aircraft class is held, then there will be duplicate or similar combinations such as ABC, DEF, GHI, etc. In order to avoid these problems, the high-speed rail directly omits the letter in the middle position.
Because the high-speed rail only uses the letters A, C, D, and F to indicate the location of the window and the aisle, and does not use any letters to indicate the intermediate position, the letter E does not exist on the high-speed rail at all. Of course, in first and second class, not all positions do not have intermediate positions.
In first class, there are four seats in each row, with B and E being in the middle;In second class, there are five seats in each row, with B and E also in the middle. These seat numbers in the middle are represented by numbers. The advantage of this is that travelers can see their seat number more intuitively without having to memorize too many letters. At the same time, it also avoids confusion between letters and numbers.
The reason why high-speed rail seat numbers don't have an E is not because E has been forgotten, but because high-speed rail has adopted a more concise and practical way to represent seat locations. The high-speed rail seat number only uses the letters A, C, D, and F to indicate the location of the window and aisle, and does not use any letters to indicate the middle position.
The absence of an e-number for high-speed rail is not a mistake or a defect, but an innovation and an optimization. By borrowing the meaning of the letter of the aircraft class and combining its own characteristics and needs, high-speed rail has designed a more concise and practical way to represent the seat position.
The absence of an e-number for high-speed rail is not a mistake or a defect, but an innovation and an optimization. The high-speed rail seat number only uses the letters A, C, D, and F to indicate the location of the window and aisle, and does not use any letters to indicate the middle position. There are many advantages to this, such as making it easier for passengers to choose their desired position, saving letter resources, and adapting to different types of seating arrangements.