This document sets out guidelines to the methods of assessing the exogenous and endogenous risks of crime and/or perceived insecurity and proposes measures designed to preclude or reduce these risks. The objective is to strengthen the overall security of land-based public transport, such as : bus stop, bus station, train station, train stops/halts, modal interchanges, open access underground and tramway systems, controlled access underground and tramway systems, taxi ranks, station car parks, river bus terminals, bicycle parking facilities. This document does not cover terrorism or the revenue vehicles themselves. It covers the areas that are dedicated to mass transit and open to the public. The core document focus is on the security of passenger spaces, in respect also of security aspects. The document applies to existing public transport facilities as well as new public transport facilities.