Drop road column

[brad-richardson]

Description

Follow-up to previous changes in #203, this drops the road column from the schema entirely in preparation for the July release. Also fixes class requirement to only apply when subtype=road, as it was previously.

Reference

1. Segment restructure #203
2. https://github.com/OvertureMaps/tf-transportation/issues/253

Testing

Updated all examples, simple removal

Checklist

Checklist of tasks commonly-associated with schema pull requests. Please review the relevant checklists and ensure you do all the tasks that are required for the change you made.

1. Add relevant examples.
2. Add relevant counterexamples.
3. Update any counterexamples that became obsolete. For example, if a counterexample uses property A but is not intended to test property A's validity, and you made a schema change that invalidates property A in that counterexample, fix the counterexample to align it with your schema change.
4. Update in-schema documentation using plain English written in complete sentences, if an update is required.
5. Update Docusaurus documentation, if an update is required.
6. Review change with Overture technical writer to ensure any advanced documentation needs will be taken care of, unless the change is trivial and would not affect the documentation.

Documentation Website

Update the hyperlink below to put the pull request number in.

Docs preview for this PR.

[jwass]

Huge! Great work

[danabauer]

So great to see this user-friendly restructuring. Just a heads up: we're developing more formal deprecation guidelines that will probably recommend a longer deprecation timeline for a change like this. We won't have the guidelines in place until after the GA release, so this is not a blocker for retiring the road column.

[vcschapp]

So great to see this user-friendly restructuring. Just a heads up: we're developing more formal deprecation guidelines that will probably recommend a longer deprecation timeline for a change like this. We won't have the guidelines in place until after the GA release, so this is not a blocker for retiring the road column.

Thanks Dana. Excited to see those guidelines when their finalized!