The Rail transit system has a vital role for social service, due to the fact that it has significant impacts on the relief of traffic congestion, and air pollution. Based on Jakarta Property Institute survey (2021), 69% of respondents from Greater Jakarta responded after the pandemic is over; they still choose to use private transportation to go to work. Some travelers avoid using transit due to the relatively low level of its accessibility and access to the rail station. A sustainable approach to improving accessibility is by encouraging active mobility, which is walking and cycling. One of the ways to promote active mobility is by changing the character of the environment. Therefore, this study aims to develop a quantitative and qualitative assessment method and measuring the walkability and bikeability to improve its mode share to access the rail station. In measuring walkability, the author is combining the perspective of the passenger trains’ level of acceptance (LOA) with the pedestrian facilities’ pedestrian level of service (PLOS), while for bikeability assessment using bicycle level of service (BLOS). Pretesting and comparing visual and non-visual questionnaires were carried out before finalizing the assessment design. The result provides the visual assessment showing better evaluations regarding easiness, safety, and convenience parameter. These assessments will be used as a guide in measuring walkability and bikeability level of service for train station.