FA-12228 / Navigation route constraints / Member archive

A reversible lane is used after its direction changes · case 03

A reversible lane is used after its direction changes in the controlled route-policy fixture.

Member previewVariant 3 · 3 implementations · 7 checks per implementation

Case contract

Windows are nonoverlapping (start,end,direction) on an absolute integer timeline. Entry is inclusive and exit may equal end; travel duration is positive.

Why this case matters

Navigation policies depend on road context that a shortest-path cost alone does not encode.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
overrun switch	`true`	`false`	Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

Member access is invitation-based. Sign in with your invited account to inspect the sources.