Question

Damaging seats in buses consequence

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Answer 1

Answer:

Passenger Bus - Seat modification to avoid accident damages and for comfort level

Sriram Srinivasan, Prasanna S, Sambasivam S M

Abstract — A bus is a road vehicle designed to carry passengers.Buses can have a capacity as high as 300 passengers. The most common type of bus is the single-decker bus with larger loads carried by double-decker buses and articulated buses. Bus manufacturing is increasingly globalised, with the same design appearing around the world. Buses may be used for scheduled bus transport, scheduled coach transport, school transport, private hire, tourism etc.Buses generally run on internal combustion engine with diesel in it .The reason is that diesel can withstand heavy loads because of its high compression ratio.In addition cost of diesel is also less.But because of its high compression ratio and continuous detonation, the engine runs rough causing vibrations. The engine of the bus will generally be placed in the leading end without any proper casing and proper vibration dampers (generally viscous dampers).The seats in the bus are supported to the base by a pair of rigid fixed column (frame) which reduces the ease of movement of the passengers during turns and sudden braking. Lack of comfort of the passengers causes health difficulties and mental stresses for the individual and because of the rigid base, the load acts on the passenger causing body pain.

In addition to the lack of comfort, the seats are positioned in such a way that the passenger faces the driver's end (front facing).The reason is that ,if the seats are placed facing the trailing end, the objects outside the buses seems to be moving in the reverse direction that causes mental stress to the individual. But if the seats are placed facing the driver, the possibility for the death scale will be more during accidents because if the bus hit an object opposite to it, the passenger falls to the front seat because of the sudden impact. Due to this, the passenger first slides from the seat and passenger's neck portion hits the seat front to him and causes sudden shock load on his spinal cord causes major damages and injuries. Also during braking the impact makes the passenger to fall on the seat in front of them. Because of these difficulties the death scale possibility during accidents is more in seats facing front. In addition the night travel with front facing seats causes discomfort because the light rays from the vehicle in opposite lane falls on the individual's eye causing lack of sleep during nights.This paper aims in modifying the arrangement of seat with few additional designs to reduce the death scale possibility during accidents and for ease and comfort travel.

Index Terms—Air bag, Bus, Comfort level, Design, Passenger, Seat, Spring

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