FA-12227 / Navigation route constraints / Member archive

A reversible lane is used after its direction changes · case 02

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

Member previewVariant 2 · 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

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