This special session is organized in order to share the knowledge about the safety, friction, and monitoring to fit under infrastructure. While considering a big trend of the society such as aged-society, rapid change of climate, more populated city living, the safety of vehicle users, bicyclists and pedestrians is getting important. This special session has a focus on the relationship between the safety service provided by infrastructure with related to the pavement for vehicular movement and walking and riding surface for the bicyclists and pedestrians. Through the special session, the organizers hope to share the international practice about this topic, and more safety and sustainable infrastructure can be reached.