Factorio Forums

With certain track layouts signals cannot be placed on both sides of the track - even though there is enough space on the side.

This seems to be the case when the track is not accessible (without stopping and driving backwards) from the side one wants to place signals on. This situation can occur when you are building tracks and have not yet connected all ends. I expect to be able to place signals whether it makes sense from a network perspective or not - provided there is place to actually place them. Maybe it is an idea to differ the suggested signal side as now in green and the possibly 'damaging' one with yellow placement marks.

The screenshot shows the situation I noticed it, the savegame can be found at https://cloud.planetmaker.de/index.php/ ... Ftb2Sfej4N and shows the overall track layout in the vicinity of the player.

If the track is supposed to be two-way, place the signal for southbound traffic first and then you can place a signal on the opposite side for northbound traffic.
If the track is supposed to be one-way northbound, your rail junctions likely have connections they should not have. But in the meantime, you can use the same trick as for two way traffic, and remove the southbound signal after you build the northbound signal.

Also, if you have construction robots, you can place a ghost anywhere you want, and they'll build it for you, even if that results in a useless signal or impassible track.

DaleStan wrote: Sun Apr 07, 2019 5:45 pm If the track is supposed to be two-way, place the signal for southbound traffic first and then you can place a signal on the opposite side for northbound traffic.
If the track is supposed to be one-way northbound, your rail junctions likely have connections they should not have. But in the meantime, you can use the same trick as for two way traffic, and remove the southbound signal after you build the northbound signal.

Also, if you have construction robots, you can place a ghost anywhere you want, and they'll build it for you, even if that results in a useless signal or impassible track.

Exactly.