obstruction warning indicatorとは 意味・読み方・使い方

Additionally, when the accident occurred, 'Kitakinki No. 3' from Shin-Osaka came nearby, but someone pressed the emergency button of the railway crossing near to the scene of the accident, so the obstruction warning indicator was on; the train motorman sensed the abnormal situation, pulled the emergency cord, and stopped the train at the spot just a hundred meters from the site, thus narrowly escaping danger.発音を聞く 例文帳に追加

なお、この事故の際、事故現場に新大阪発の「北近畿3号」が迫っていたが、近くの踏切の非常ボタンが押されて特殊信号発光機が点灯したため運転士が異常を察知し非常ブレーキを掛け、100m手前で停車させたため危うく難を逃れている。 - Wikipedia日英京都関連文書対訳コーパス