10. COLOR SIGNALS Color/Indication (a) Red/Stop. (b) Yellow/Proceed at reduced speed, and for other uses prescribed by the Rules. (c) Green/Proceed, and for other uses prescribed by the Rules. (d) Yellow & Green Flag/Stop by day. See Rule 28. (e) Blue See Rule 26. (f) Purple/Stop. (g) White/As prescribed by the Rules. 11. A train finding a fusee burning on or near its track must: (a) In Automatic Block System territory and where Rule 261 is in effect: Stop and extinguish the fusee and then proceed at reduced speed. (b) Where no form of block system is in effect and when operating under "Occupied Block" in Manual Block System territory: Stop; wait for fusee to burn out, then proceed at reduced speed. Fusees must not be used on wooden bridges or structures liable to be damaged by fire.