Safety devices Apart from the falls of ground, haulage and transport operations have been responsible for a greater number of accidents involving deaths and injuries than any other single cause. The major proportion of haulage and transport accidents results from runaways. The various safety devices used on haulage roadways are as follows:
1. Stop blocks
2. Buffers
3. Back catch
4. Pointer plate
5. Drop warrick
6. Age craft device
7. Back stays or drags
8. Runaway switches
9. Jazz rail
10. Retarders and stoppers
11. Approach warning devices
12. Signalling arrangements
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