UM Geospatial Digital Special Collections

Citation: Miami-Dade County (2018). Miami-Dade Major Roads [gis dataset]. University of Miami GDSC. https://gis-mdc.opendata.arcgis.com/datasets/MDC::street/about. last updated: 2024-10-28 (update frequency: 1 week). Abstract: A line feature class of Miami-Dade County streets with seamless address ranges. Displays main roads including expressway ramps, expressways, highways, and major roads. A line feature class of Miami-Dade County streets with seamless address ranges. This feature class (FC) is one of a set of FC's derived from our main Streets FC, which were created to display street information. Key words: Florida, Miami-Dade County, MDC, Infrastructure Open Geospatial Consortium Standards: dynamic vector tiles | | WMS (coming soon) | WFS (coming soon) Analytical Functions: gdsc_nearest_neighbor(table=mdc_major_roads,lat=25.718,lng=-80.279,id=streetid) ETL documentation

ETL for mdc_major_roads

######### # GDSC ETL is performed in two steps: shell script to ETL data into postgres # and then additional transformations with SQL in postGIS (if needed). #### ######### # Step 1 - bash script (pseudo code) #### # create directory structure and move into it mkdir -p /data/mdc_major_roads/{download,etl} && cd /data/mdc_major_roads # set update flag based on last update and update frequency do_update=0 if date() < last_update + update_frequency else do_update = 1 # Create copy of geom dependency pg_dump -d $POSTGRES_DB -U $POSTGRES_USER -p $POSTGRES_PORT -h postgis-ryanlr619lpfqzd2 -t mdc_streets | sed 's/mdc_streets/mdc_major_roads/g' | psql -d $POSTGRES_DB -U $POSTGRES_USER -p $POSTGRES_PORT -h postgis-ljdbztukphqn0glt # subset as per custom parameters psql -d $POSTGRES_DB -U $POSTGRES_USER -p $POSTGRES_PORT -h postgis-ljdbztukphqn0glt -c " DELETE FROM mdc_major_roads WHERE NOT (class in ('0','1','2','3')); "