sorry bensmum, i did mean to post last week but have been doing an essay on and off and keep forgetting what i logged onto the pc for!!
red flags- absolute no no, silly as it sounds could cause major probs especially in larger , busier stations, the guards use the red flags to inform a train to stary stationary at the platform.
same goes with green, the guard uses this flag to inform the driver its safe to go- you could imagine the pandemonium if the guard is waving his green flag and a m,netter is manically waving a red flag!!
any colours apart from red and green will be fine!!