Two-floor passenger railway car and train comprising such a car

1. A two-floor passenger transport railway car, comprising:

a passenger compartment having, in a central segment of the compartment, a lower floor and an upper floor superposed with each respectively defining a lower story and an upper story, and,

a first platform in a first end segment of the compartment and a second platform in a second end segment of the compartment, each of the first and second platforms being connected to the lower floor through a descending passage and to the upper floor through an ascending passage,

wherein at least one of the first or second platform is equipped with at least one row of longitudinal seats leaning against a side face of the railway car,

the at least one platform equipped with the at least one row of longitudinal seats is served by a side access door placed at the level of the platform on the side face against which the seats are leaning,

the side access door is placed longitudinally between the at least one row of longitudinal seats and the descending passage or the ascending passage,

the side access door is open to an outside of the railway car,

each ascending passage connecting a respective platform to the upper floor is narrower than the descending passage connecting the respective platform to the lower floor, and

each ascending passage comprises a staircase and at least one of the descending passage comprises a staircase wherein the ratio of the width of the ascending passage over that of the descending passage is comprised between 0.4 and 0.8.

2. The railway car according to claim 1 , wherein the at least one platform is equipped with two rows of longitudinal seats, each leaning against a respective side face.

3. The railway car according to claim 1 , further comprising a second side access door, such that each of the first and second platforms is served by a side access door.

4. The railway car according to claim 1 , wherein the upper story and the lower story are provided with fixtures of seats with different respective comfort levels.

5. The railway car according to claim 1 , wherein either the upper story or the lower story is equipped with at least one row of seats comprising a common back seat and/or a common seat surface, and the other is equipped with individual seats.

6. The railway car according to claim 1 , wherein the lower story is equipped with at least one row of seats comprising a common back seat and/or a common seat surface, and the upper story is equipped with individual seats.

7. The railway car according to claim 1 , comprising an information display banner located inside the railway car and continuously extending over a side face at least along the two platforms and the upper story.

8. The railway car according to claim 1 , comprising an information display banner located inside the railway car and continuously extending over a respective side face at least along the two platforms and the lower story.

9. A railway train comprising at least one railway car according to claim 1 .

10. The railway car according to claim 1 , wherein the ratio of the width of the ascending passage over that of the descending passage is between 0.6 and 0.8.

11. The two-floor passenger transport railway car according to claim 2 , wherein each of the first and the second platform is equipped with seats that consist of the two rows of longitudinal seats leaning against each respective side face.

12. The two-floor passenger transport railway car according to claim 3 , wherein:

the longitudinal seats on the first platform are located on a first side of the side access door serving the first platform;

the ascending and descending passages from the first platform are located on a second side of the side access door serving the first platform;

the longitudinal seats on the second platform are located on the second side of the side access door serving the second platform;

the ascending and descending passages from the second platform are located on the first side of the side access door serving the second platform;

the upper floor comprises transverse seats on both sides with an upper aisle therebetween;

the lower level comprises longitudinal seats on a first side and transverse seats on the second side with a lower aisle therebetween, the lower aisle being wider than the upper aisle, and the lower aisle being aligned with the descending passage from each of the first and second platforms.

13. A two-floor passenger transport railway car, comprising:

a passenger compartment having, in a central segment of the compartment, a lower floor and an upper floor superposed with each respectively defining a lower story and an upper story,

in end segments of the compartment, two platforms each connected to the lower floor through a descending passage and to the upper floor through an ascending passage, and

at one or two longitudinal ends, an intercirculation passage, the width of which is greater than 50% of the width of the car,

wherein at least one platform is equipped with at least one row of longitudinal seats leaning against a side face of the railway car,

the at least one platform is served by a side access door placed at the level of the platform on the side face against which the seats are leaning,

the access door is placed longitudinally between the at least one row of longitudinal seats and the descending passage or the ascending passage, and

the side access door is open to an outside of the railway car wherein the ratio of the width of the ascending passage over that of the descending passage is comprised between 0.4 and 0.8.

14. The railway car according to claim 13 , wherein the intercirculation passage has a width greater than 60% of the width of the car.