UM Geospatial Digital Special Collections

Citation: Metropolitan Planning Organization (2018). Miami-Dade Bike Lanes [gis dataset]. Miami-Dade County. https://gis-mdc.opendata.arcgis.com/datasets/MDC::bike-lane/about. last updated: 2024-10-28 (update frequency: 1 year). Abstract: A line feature class of the Miami-Dade County, Metropolitan Planning Organization (MPO) existing bike lanes Key words: Florida, Miami-Dade County, MDC, Miami-Dade Transit, Transportation, Bike, Bike Lane, Infrastructure Open Geospatial Consortium Standards: dynamic vector tiles | | WMS (coming soon) | WFS (coming soon) ESRI Standards: ArcGIS MapServer | ArcGIS FeatureServer | Open in ArcGIS Portal for GDSC Analytical Functions: gdsc_nearest_neighbor(table=mdc_bike_lanes,lat=25.718,lng=-80.279,id=name) ETL documentation

ETL for mdc_bike_lanes

######### # 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_bike_lanes/{download,etl} && cd /data/mdc_bike_lanes # set update flag based on last update and update frequency do_update=0 if date() < last_update + update_frequency else do_update = 1 # download if update flag is set: if do_update == 1 then wget -O download/mdc_bike_lanes.json 'https://services.arcgis.com/8Pc9XBTAsYuxx9Ny/arcgis/rest/services/BikeLane_gdb/FeatureServer/0/query?where=1%3D1&outFields=*&outSR=4326&f=json' # replace column names Shape__Length and Shape__Area to avoid conflict when # providing as service on ArcServer. sed -i 's/Shape__Length/shape_length/gI; s/Shape__Area/shape_area/gI' download/mdc_bike_lanes.json # load into postGIS with: ogr2ogr -lco GEOMETRY_NAME=geom -f PostgreSQL PG:"" download/mdc_bike_lanes.json -nlt multilinestring -nln mdc_bike_lanes ######### # Step 2 - SQL script (pseudo code): #### # remove duplicate points and make geometries valid: UPDATE mdc_bike_lanes SET geom=ST_MakeValid(ST_RemoveRepeatedPoints(geom));" # add local geometry column and reproject existing geometries into local EPSG: SELECT AddGeometryColumn ( 'mdc_bike_lanes', 'geom_local',2236,'multilinestring',2 ); UPDATE mdc_bike_lanes SET geom_local=ST_MakeValid(ST_RemoveRepeatedPoints(ST_Transform(ST_Multi(geom),2236))); CREATE INDEX mdc_bike_lanes_geom_local_idx ON mdc_bike_lanes USING GIST (geom_local); NOTIFY pgrst, 'reload schema';"