Passenger comfort and safety is one of the main factors in making the experience of using public transportation more comfortable and attractive to passengers. This study aims to assess facility design factors such as seats and handrails that are related to ergonomics, in addition to design factors, namely safety factors by identifying and minimizing hazards that can occur to passengers and procedures that need to be carried out in the event of an accident. To assess the comfort of passengers on the bus, it was measured using the Rapid whole-body assessment (REBA) guidelines, Rapid Upper Limb Assessment (RULA) and anthropometry to accurately measure body posture, as well as Quality Function Deployment (QFD). As the result, the new handle and passenger seat were proposed to comply with the ergonomic perspective. How much level of Customer satisfaction increase, can be seen in the result of this research. From using REBA Method there’s a change of score in value from before using our design customer posture got 4 for body posture evaluation score, and after using our design costumer posture score got 3 for body posture evaluation score. From using RULA method there’s a change of score in value from before using our design customer posture got 4 for body posture evaluation score, and after using our design costumer posture score got 2 for body posture evaluation score. It is concluded that the new design work and proof the new design was comply with ergonomic aspect. With this research, it will be beneficial for the sustainability of consumer comfort in Transjakarta public transportation. Because with the realization of the results of this research, improvements in Transjakarta public transportation facilities to support consumer comfort can be achieved and increase customer satisfaction.