2. Onboard services and comfort

2.1 On-board facilities

The main points of difference between 1 ^ère and 2nd class are the number of seats in the transverse position (4 instead of 3), a slight difference in pitch, reduced seat equipment (e.g. pneumatic controls), and smaller seat widths and armrests widths.

Passengers must be able to choose their travel conditions, with or without reservations, with several possibilities for day or night travel, with or without connections, and with possible complementary conditions concerning other modes of transport according to their needs. The organization of on-board space is therefore a fundamental point in the development of layout diagrams. This organization must sometimes take into account the variability...