The “Guidelines for Integrated Network Design” (German abbreviation: RIN), were edited in 2008 and are now translated into the English language by the FGSV. The RIN, edition 2008, replace the “Guidelines for the Design of Roads – Guidance for Functional Categorisation”, edition 1988.
The strategic development of transport networks is a component of spatial planning, i.e. of land use regulation, regional planning and urban planning. Spatial planning includes landscape planning, transport planning and other sectoral planning activities. The sectoral planning objectives are to be coordinated with those of the higher-level spatial planning and their often complex interactions are to be taken into account as early as in the planning phase.
The “Guidelines for Integrated Network Design” draw on the objectives of spatial planning and regional planning for the accessibility of central places and derive the functional categorisation of transport networks from the categorisation of central places. As a result, at the level of conceptual transport network design, the objectives for the development of transport systems are based on a uniform spatial planning approach thus supporting a coordinated transport network development.
In addition to the spatial planning approach to network design, the “Guidelines for Integrated Network Design” also incorporate environmental and landscape-related planning objectives. This involves considering the sensitivity of the environment surrounding the transport infrastructure in order to prevent or mitigate adverse impacts of the transport system while the transport networks are still at the conceptual planning stage. The RIN address the transport supply as a whole. They comprise the co-ordinated network development in each particular transport systems and the development of connections between the systems. This can strengthen the inherent advantages of one transport system and can combine their advantages with another transport system at transfer nodes. This supports the development of an optimal solution for the transport system as a whole.
The RIN address the design of transport networks including the public transport supply. This requires the following steps:
Functional categorisation of the transport networks (section 3): A category is assigned to each network element of the transport network. This category results from the importance of the connections traversing the network element and the requirements of the environment surrounding the network element. The objective is to design the network elements of the transport network in a functional manner.
Evaluating the service quality of connections (section 4): For every connection, indicators describing the service quality are determined for each transport system or for a combination of transport systems, comparing service quality indicators with quality levels allows to assess connections and thus identify “good” and “poor” connections.
Quality requirements for the design of transport networks, network sections and transfer nodes (section 5): The networks of specific transport systems have to meet requirements going beyond requirements of single network elements. The quality requirements on the level of connections and the category of the network elements determine the quality requirements of individual network sections
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