To provide good ride comfortableness for passengers and protect the passengers from a car accident for safe transport by forming passages between respective protective layers on both sides in the wide direction of a bus body, ensuring protective areas on the inward side of the passages, and disposing seats in the protective areas.

Protective layers 2, 3 of two layers are disposed on both sides in the wide direction of a bus body 1, and two right and left passages 4 for passengers extending in the body longitudinal direction are formed between the respective protective layers 2, 3. Protective areas 5 are ensured on the inward side of the respective passages 4. The protective area 5 is partitioned into two spaces 51, 52 at the upper and lower parts by a partition wall 7. An upper passage 41 for passengers is formed on the upper side of the partition wall 7 in the upper space 51. A plurality of sets of seats are disposed in the longitudinal direction as follows: one seat 6 each on both sides of right and left between which the upper passage 41 is put, and three rows of seats 6 in the lower space 52. It is possible to make it difficult for passengers seating themselves on the seats 6 to receive vibration from a wheel, thus providing good ride comfortableness for the passengers.