A Lineside look

European convention requires the clear and concise marking of hazardous or toxic loads. This is achieved by means of the Hazchem symbol system. John Emerson presents a brief outline of the subject - a complete listing would fill up many issues of BRM!

The vanishing semaphore signal (Part 1)
The vanishing semaphore signal (Part 2)
The coal yard

Last update: 17 January 2000