Motorcyclist may be invisible when they are in front of bigger vehicle like cars, buses and trucks etc. and the reason is narrowness of the bike.
Precautions:
Use reflecting stickers or reflectors etc. on bike/motorcycle and on the helmet to make rider and the bike more visible particularly in nights and in fog.
Try to use glowing and more visible coloured uppers like Red, Orange etc.
Avoid uppers (even dresses) which may make you invisible in respective time like avoid black, navy blue, dark gray, brown (i.e. dark) colours in the night and in fog.
In short, bike riders need to adopt more safety precautions than other vehicle riders.
Posted Infographic in Trans & Travel