Demo hqta lines

[tiffanychu90]

• Demonstrate how to back out HQTA areas as lines instead of polygons using only open data portal products
• Use clip, dissolve, merge...all should be possible within ArcGIS modeling workflows

Email thread from Justin Heyerdahl:

I think the main hurdle for us being able to use CalTrans data for Site Check is that we need to provide both the raw, unbuffered data for users to explore in the tool interface (existing major stops, HQ stops, and HQ corridor lines) as well as the buffered versions as separate datasets that are used to screen parcels. We include two different buffer ranges (1/2-mile and 1/4-mile) specific to HQ corridors, rather than the single buffer range in your CA HQ Transit Areas dataset. We do this because they filter parcels into different qualification zones depending on the particular CEQA exemption for streamlining of housing development.

I would love to integrate the raw, unbuffered CalTrans datasets as our inputs, and then we already have modeling workflows to buffer and build out the rest as separate layers. However, we can't use the CA HQ Transit Areas alone as we would need the corridor lines for both visualization purposes for our users and to create our secondary buffer range. If that could be produced and provided it would be greatly appreciated. Several Municipal Planning Organizations (MPOs) produce the line features for their jurisdictions, but having broader statewide corridor coverage from a sole source with standardized methodology would be ideal.

[github-actions]

nbviewer URLs for impacted notebooks:

• high_quality_transit_areas/corridors-as-lines.ipynb

[github-actions]

nbviewer URLs for impacted notebooks:

• high_quality_transit_areas/corridors-as-lines.ipynb