桥吊作业区夜班吞吐量占全天四成，照度不够直接掉产能：吊具对位、锁销确认、箱号核对，每一步都吃灯光。
岸桥作业面垂直照度≥50lx、堆场滚装区30lx、箱号识别区局部100lx；高杆灯配光须覆盖吊机臂架全回转半径并控制对驾驶室的眩光TI≤10%。
我们按吊机回转轨迹建模布灯，驾驶室方向全部截光处理，泊位作业照度提升35%的同时司机眩光投诉归零。
Night shifts move forty percent of daily container throughput — insufficient lighting cuts productivity directly: spreader alignment, twist-lock checks and number verification all depend on light.
Quay-crane working faces need vertical illuminance ≥50 lx, roll-on zones 30 lx, container-number areas locally 100 lx; high-mast optics must cover the full crane slew radius while keeping cab glare TI≤10%.
We model layouts around crane slew paths with full cutoff toward cabs — raising berth working illuminance 35% while eliminating driver glare complaints.
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