︎ Most drivers who do not use bicycles have difficulties sharing the road with bicycles, and people who use bicycles think it is dangerous to ride a bicycle in a big city although it helps to get rid of the traffic congestion. This mobile app lets these people know how to share the road, and has a lot of features that bike users and car drivers can use with interest. This may be a small change, but it will do much more for the positive change of our society’s traffic culture than simply participating or using it. The purpose of this project, which is called "m-together", is to inform the drivers who do not use bicycle s how to share the roads with bicycles to prevent accident and to increase bicycle user. Moreover, this project aims to further reduce traffic congestion and create a better traffic culture.