Define "stop line":

1. AA line across the roadway or across part of it, marking a boundary for stopping a vehicle.
2. BA line along the roadway marking a boundary for stopping a vehicle only at junctions with traffic lights.
3. CA junction line along the roadway or part of its length, marking a boundary for stopping a vehicle close to the kerb.
4. DA line along the roadway marking a boundary for stopping a vehicle before a railway crossing.

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