摘要:Cyclists as unprotected road users are one of the most vulnerable groups of travelers. In order to improve their safety, various activities are carried out. Interested results are presented in Mineta Transportation Institute (MTI) report - Report 12-54: Bike-sharing and Bicycle Safety from 2016. It points out that there are no fatalities among users of city bike sharing systems in the United States. Due to the growing interest in systems in Poland, authors focused on the analysis of aspects related to the safety of their use. The paper presents factors that affect the road traffic safety of bike-sharing users. Authors referred to international practices used in cities bike-sharing systems and presented bike-sharing systems as an opportunity to support the implementation of Vision Zero.