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What do the black-and-white and black-and-yellow striped marker boards at the bridge shown indicate?
圖中橋頭的黑白及黑黃斜紋標記分別表示什麼？
Black-and-white bridge markers identify the left edge; black-and-yellow markers identify the right.
黑白標記指示橋梁左側邊界，黑黃標記指示橋梁右側邊界。
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These aid edge visibility, especially at night. They do not identify parking, underground services or terrain below; slow and watch opposing traffic.
這些反光標記幫助辨認狹窄橋面的邊緣，夜間尤其重要；它們不說明停車許可、地下管線或橋下地形。接近時應調整速度並注意橋上的來車。