Occasionally, signalmen have been known to fall asleep on the job, (resulting in accidents) and faint when an accident almost happens.
A signalman's uniform consists of a white shirt with blue overalls and a blue or brown cap. Most signalmen wear a jacket, which is usually grey or green.
- To date, only two signalmen have been named: Mr. Edwards and Simon.
- The Rev. W. Awdry criticised the third series episode, Henry's Forest for Henry's driver not alerting a signalman about where they were to stop in the forest, thus violating Rule 55.
- Brio (discontinued)