The results of serious traffic accidents caused by careless driving are displayed. One of several Driver's Education films produced by Highway Safety Films, filmed at actual auto accident scenes and consisting largely of color closeups of mangled accident victims.
Unfortunately the movie Signal 30 is not yet available on HBO Max.
| Directing | Richard Wayman | Director |
| Camera | Richard Wayman | Director of Photography |
| Production | Richard Wayman | Producer |
| Crew | E.E. Smith | Technical Advisor |
| Production | Earle Deems | Producer |
