Package: openudm
OpenUDMOpen Urban Development ModelOpenUDMis a grid cell-based model which explores where future urban
development might take place, subject to attractors, constraints and variable
density of development.The diagram below illustrates how a number of different potential attractors
and constraints can be combined to run the model.OpenUDMhas been used in a number of contexts to explore urban development
scenarios. For example, this interactive article abouturban development in the Oxford-Cambridge Arcintroduces the modelling process and analyses the potential impacts of future
development on the natural environment.CitationsAlistair Ford, Stuart Barr, Richard Dawson, James Virgo, Michael Batty, Jim
Hall (2019) A multi-scale urban integrated assessment framework for climate
change studies: A flooding application. Computers, Environment and Urban
Systems. 75, 229-243.https://doi.org/10.1016/j.compenvurbsys.2019.02.005.QuickstartOpenUDM is a Python package which is tested with Python 3.6 - 3.8. To
install the package using pip, run:pip install openudmIfpip installfails, you may need to installswig,
which is used to build the core model code. On Ubuntu, run:sudo apt install swigOn Windows (withChocolateyinstalled), run:choco install swigswigcan also be installed usingAnaconda:conda install swigBefore running the model, set up the parameter files and grid data files for
attractors, constraints, current development, and zones. A small example is
included in theDatadirectory of this repository.To run the model:python -m openudm /path/to/dataAdditional toolsRaster to VectorCommand line tool allowing conversion of a raster file to a vector fileUsageraster_to_vector -i input_file -o output_file -f name_of_feature_typeOptional arguments:-i- path and name of input raster. Default = 'raster.asc'-o- path and name of output vector - supports geopackages only at the moment. Default = 'buildings.gpkg'. Where multiple options passed, parameter ignored and files match feature type names.-f- the feature type to extract from the raster layer output from UDM. Allowed values are 'buildings, 'roads' and 'greenspace'. Pass multiple using a comma separated list.-c- the coordinate system for the output if to be different from the input data. If not passed, the coordinate system of the input data will be used, and if that can't be established, EPSG:27700 (British National Grid) will be used.Generate urban fabricCommand line tool allowing for the generation of buildings and urban layouts using the outputs from a UDM runOutputs from UDM are expected in the data directory, and this is also where the output file will be written.Usagegenerate_urban_fabric -i out_cell_dph.asc -o out_ufg.asc -t tilesRequired arguments:-i- path to dph rasterOptional arguments-o- path to output urban fabric raster. Default = <dph_raster_directory>/out_uf.asc-t- path to directory containing tiles. Default = openudm/TilesAcknowledgementsOpenUDM has been developed by researchers at Newcastle University and the
University of Oxford in the UK. This work has been funded by EPSRC through the
ITRC MISTRAL project, the UK Climate Resilience Programme through the OpenCLIM
project, and the Alan Turing Institute.