Download METRONAMICA
Transcript
4.1.3 Resolution of the land use model Resolution of the spatial data can be chosen in the range 50m to 1000m depending on the precise purpose of the model, the data available and the size of the region modelled. Although technically coarser or finer resolutions are possible, it does not represent the scope of the model and its explorative character. Typically urban areas are modelled at 100m, while regional applications use 200m to 500m cell sizes. 4.1.4 Length of typical simulation runs Define for what years into the future should the model produce results. The length of simulation runs is typically run for 20 – 30 years (could be longer, but the results will become more uncertain). In the following we refer to this as Horizon year. 4.1.5 Land use types modelled at the local level Technically the number of land uses is limited to 50 of which functions should be 16 or less. Besides the availability of data one should consider the intended application when deciding on the amount of land use classes. Besides, the more classes there are defined, the more changing land use is needed over the calibration to achieve a proper calibration. 4.1.6 Sectors modelled at the regional level This is only required for Metronamica ML and Metronamica LUT. There must be a one to one relation between the land use functions at the local level and the economic and population sectors at the regional level. The specification described above is mainly for land use model and regional model. Particularly, for the additional information required by the transport model, it is not described at here. We refer to the section 4.5 Additional data for the transport model. 4.2 Required data and configuration of Metronamica Basically three types of data are required depending on the configuration of Metronamica (SL, ML or LUT). They are described in the following the sections. 3. GIS (map) data are required to feed the land use model at the local level. 4. Census and other statistical data for the regional model at the regional level. 5. Additional information for the transport model at the regional level. Therefore, for Metronamica SL, data in the section 4.3 are required; for Metronamica ML, data in the sections 4.3 and 4.4 are required; for Metronamica LUT, data in the sections 4.3, 4.4 and 4.5 are required. 4.3 GIS data for the land use model These data are required for the land use model at the local level. 254