Paragraph 2 Flashing lights
Any flashing lights installed on or inside a rail vehicle which are designed to be operated for the attention of passengers must not flash at a greater frequency than 2 hertz or 2 flashes per second.
Any flashing lights installed on or inside a rail vehicle which are designed to be operated for the attention of passengers must not flash at a greater frequency than 2 hertz or 2 flashes per second.