leeyc0@岸郊野吾賞鯉
@leeyc0
講
Wed, Jan 25, 2017 4:25 PM

Railway signal failed and there is NO FAILSAFE SIGNAL INTERLOCK between train signal and road signal……
leeyc0@岸郊野吾賞鯉
@leeyc0
講
Wed, Jan 25, 2017 4:26 PM
A proper railway signal should have interlock to guard train signal and road signal so that both never go green simultaneously
シリル
@manameharuko
Wed, Jan 25, 2017 4:28 PM
載入新的回覆