The purpose of this research is to study how the environmental design on the bus and safety is managed in Uppsala, Sweden, and to thereafter analyze this by using the crime prevention theory/method crime prevention through environmental design (CPTED). Both features that currently exist on the bus and possible future improvements were investigated. To do this, an observation of the physical environment of the inside of a bus and six interviews, both with people responsible for safety on the bus in Uppsala and bus drivers, were executed. By analyzing possible crime preventing features on the bus, conclusions could be drawn. The characteristics of the bus were, to a large extent, promoted through CPTED. It was also possible to identify which elements that contribute safety, and to evaluate possible future improvements through CPTED. Out of these improvements, installation of CCTV, strengthening bus passengers' role to act and interfere when a crime is committed and extend the number of security guards and ticket collectors on the bus would, with support in CPTED, work to lower the level of crime on the bus. However, some of the possible future interventions were identified to contradict CPTED.