Traffic cell
Traffic cell or traffic district referred to in the traffic planning a spatially defined part of a survey area or planning area, the unit as a reference in the traffic analysis and traffic forecast is used.
Theoretical foundations
With the help of traffic cells, existing, planned or forecasted structural data, traffic volumes and traffic relationships in an investigation area or planning area can be recorded and localized. Furthermore, regularities of the traffic volume can be recognized and taken into account, and traffic flows can be coded, displayed, modeled and calculated.
The decisive factor for the demarcation of traffic cells is usually the administrative structure (city districts, rural districts, etc.) of an investigation area or planning area, as the structural data important for the traffic investigation (number of residents and workplaces, retail areas, etc.) are usually available for these territorial units. Natural or artificial turning points (rivers, large industrial plants, etc.) and classifications of other specialist planning (e.g. regional planning or town planning ) can also form the boundaries of traffic cells.
In order to be able to differentiate between the individual traffic cells, they are given an individual number. The number and size of the traffic cells in a study area or planning area depends on the object and the planning task. Basically, care is taken to form smaller traffic cells, as splitting them up at a later point in time in the planning process is hardly possible.
Application example
Larger cities use complex traffic models to analyze and forecast traffic . In order to obtain a realistic picture of the traffic situation in the traffic model, both the urban area and the surrounding area are divided into a large number of traffic cells. Depending on the size of the city and the planning task, the number can range from a few hundred to several thousand traffic cells. In the traffic model, each traffic cell is assigned the structural data required for the investigation (such as number of residents and workplaces, retail areas, etc.).
The data entered serve as the basis for calculating the future development of traffic in the urban area. For example, the traffic model can be used to determine which dimension the traffic flows between the individual traffic cells assume when changes are made in the traffic network or in the structural data.
Individual evidence
- ^ Research Society for Roads and Transport: Definitions. Part: traffic planning, road design and road operation. FGSV Verlag, Cologne 2012, page 30.
- ↑ Hans Glissmeyer: transpress lexicon - city traffic . transpress VEB Verlag for Transport, Berlin, 1985, page 430.
- ↑ Wolfgang Mense Bach: Traffic Systems. Werner Verlag, 1983, ISBN 3-8041-2662-6 , p. 43 ff.
- ↑ a b Dieter Lohse: Basics of road traffic engineering and traffic planning. Volume 2, Beuth Verlag, 2011, ISBN 978-3-410-17272-7 , p. 7 ff.