Covered Topics:
- Street Network Routing
- King County Street Data
The November meeting was held at Interim CDA. Thanks again for their generous use of their conference room.
Street Network Routing
- John has been studying GIS using ArcGIS and doing some routing analysis of the street network to determine driving time to Master Gardener Clinics.
- They are interested is using software that is more cost sustainable.
- Looking into using the Google Map
- Peter suggested that they may be better off using Mapbox Studio rather than Google Map to make a web map showing where their clinics are.
- Wondering if there is a solution with QGIS.
- Check out QNEAT3 Plugin for QGIS 3 https://root676.github.io/index.html
- Shortest Path (Dijkstra) between two points (pairs of coordinates obtained by using QGIS-GUI)
- Origin-Destination Matrices Matrix between all points of a layer.
- ISO-Area Algorithms Algorithms for isochrone area calculation (pointcloud, interpolation-based raster, contours and polygon)
- Check out QNEAT3 Plugin for QGIS 3 https://root676.github.io/index.html
King County Street Data
- Asked about one-way street data from King County. He couldn’t find it.
- Metro Transportation Network (TNET) in King County / trans network line
- CAR_FLOW is the field. 0 means bidirectional. 1 or 2 means one-way. It’s not explicit in the metadata but one means with the direction of the line feature and the other means against it.