國外有網站
有空櫃指數
可分港口分析
https://container-xchange.com/features/cax/
有高人有研究嗎
Container Availability Index (CAx), which forecasts supply and demand in container logistics for most of the biggest port locations for the coming three weeks. The index works whereby above 0.5 indicates a surplus and below 0.5 indicates a deficit of containers.