Development of planning documents includes parts of documents related to traffic road subsystem. In this process, with the goal of latter adoption of planning document, data about current state of the road infrastructure are being collected, an estimation is being given, potentials and limits are being defined, proposal of general and particular goals is being given, as well as proposal of general rules of use, modelling, protection and development of a planned area.
The spatial traffic development and road infrastructure system are defined during development of parts of physical plans related to road infrastructure, with observing possible conflicts and resolving the same in space on the principles of sustainable development.