[schreck61]

What

ROADMAP.md says what the project plans to work on through the end of 2027, and what it doesn't plan to take on:

• Next: transit signal priority, a pedestrian scramble and slower walkers, safety measures for vehicle conflicts, a guide to bringing your own controller, and CSV export.
• Later in 2027: coordinated adaptive corridors, mixed traffic and failures at the cooperative crossing, saving, loading and sharing scenarios, and accessibility fixes.
• If time allows: a two-lane roundabout, bicycles, small grids and importing traffic counts.
• Not planned: large networks, designing real intersections, connections to real signal hardware or network services, plugins, driver errors and crashes, Python bindings, translations and other countries' rules, 3D graphics, phones and tablets, and a stable Rust API.

The README (in Notes and limitations and Contributing), CONTRIBUTING.md and GOVERNANCE.md link to it, and the maintainer's role now includes keeping it current.

Why

Users and contributors can see where the project is heading, and what's out of scope, before proposing a change. The plan follows from the README's Notes and limitations, the findings in docs/insights.md and the known limitations in ACCESSIBILITY.md. It also covers the documentation_roadmap criterion of the OpenSSF Best Practices silver badge.

Testing

Every relative link and anchor in the changed files resolves.

Documentation only; no code changes.