主次干道车流密集，交会区与公交站台是事故高发点，普通灯具眩光值超标会直接压低驾驶员对行人及非机动车的识别距离。
依据CJJ45-2015，主干路维持平均照度20-30lx、总均匀度Uo≥0.4、阈值增量TI≤10%；交会区照度还需提高至30lx并压低80°/90°方向光强。选用截光型配光与4000K色温，整灯光效140-220lm/W。
我们提供DIALux照度仿真、布灯间距测算（含悬挑长度与灯臂投影修正）、截光灯具选型与市政EMC节能改造方案。
Dense traffic on arterial roads makes intersections and bus stops accident-prone; excessive glare from ordinary luminaires shortens the distance at which drivers can recognise pedestrians and cyclists.
Per CJJ45-2015, arterial roads require 20-30 lx maintained illuminance, overall uniformity Uo≥0.4 and threshold increment TI≤10%; conflict areas need 30 lx with strictly limited intensity at 80°/90°. Cut-off optics and 4000K CCT, efficacy 140-220 lm/W.
We provide DIALux illuminance simulation, pole spacing calculation (with overhang and bracket projection correction), cut-off luminaire selection and EMC energy-saving retrofit schemes.
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