| Answer | Crossword Clue |
|---|---|
| GANTRIES | Train signal frameworks |
| torpedoes | A signal placed on a railroad track, exploding as the train passes over it |
| torpedos | A signal placed on a railroad track, exploding as the train passes over it |
| starter | person who gives the signal to begin, as for a race, the running of a train, bus, elevator, etc. |
