**Hovedsignal**

Et signal der kan vise "stop": [[I-signal|I-]], [[VI-signal|VI-]], [[SI-signal|SI-]], [[PU-signal|PU-]], [[SU-signal|SU-]], [[U-signal|U-]], [[VU-signal|VU-]], [[M-signal|M-]], [[AM-signal|AM-]], [[DS-signal|DS-]], [[AM/DS-signal|AM/DS-]], [[VM-signal|VM-]] eller [[VM/DS-signal|VM/DS-signal]].