With crossings with FL it is a little more complicated. If a TIO has been set up, the following rules currently apply:
- If a TIO is set on the entry or exit segment, it will be used in favor of a TIO on the route;
- If a TIO has been set in the route, this will be used in favor of a TIO on the route;
- If there is only a TIO on the route, it will be used;
- Each TIO is given priority over a Z&H instruction.