The covid pandemic crisis has greatly impact public transport service provision across the world. Virus infection can be occur 1 metre distance espacially in dense and enclosed area. From the literature review, the author found it is still like of automated sanitation system or devices applied in Light Rail Transit (LRT) transportation. This research propose the design on LRT automated-sanitation system which it depends on the density of passenger in carrriage. This research Is benificial disinfect LRT inside area and consume less cleaning worker for this infection purpose.