This is not CR320D, it's the CR320B

https://map.geoportal.lu/theme/main?version=3&zoom=17&X=677459&Y=6435214&lang=de&layers=2729-351-181-3207-745&opacities=1-1-1-1-1&bgLayer=blank&rotation=0&features=&time=--------

(CR320B reaches from CR320 @Busstop Maarkebaach / Haaptstroos to carrefour CR320D/CR320B @Maarkebaach)