Further readings

A webpage that describes the system of shared bikes in Copenhagen (Denmark). In the recent past, Copenhagen invested in creating a secure network of cycle paths throughout the city. Today it is possible to get by bike practically anywhere in the city. Anyone who uses a bicycle only occasionally can rent it, for example in the system mentioned in the link: https://www.bikerentalcopenhagen.dk/en/?gclid=Cj0KCQiAtqL-BRC0ARIsAF4K3WFjULtmB5o_m_71CJsCFovjKFt1C6U9DdHilLVz2X-pIrgA67USdDkaAoHLEALw_wcB
The webpage of European Commission (https://cordis.europa.eu/project/id/776577) contains the links to projects financed by programme Horizon 2020 dealing with the theme of PSS.