你唔信移交初期特區可以睇英治政府。90年代已經預計2010年代2+2線免費會110%,3+3線即係80%,已經高使用率。即使冇填海,現時九龍東西向流量亦相似,有3萬幾單位車流,即係2萬尾近3萬架次。
https://www.epd.gov.hk/eia/files/applications/en/pp_801/bc_5627/bc/fr01.pdf#page=171
In 2011, the impact of tolls on CKR traffic is expected to be marginal, especially at the lower toll level. Therefore, revenues would be expected to increase as toll level increases, and this is, in fact, the case.
The peak hour traffic volumes approach capacity, and queuing on approaches will produce some delays reflected in the average speed. (This is the average of queue time and the free flow conditions in the tunnel.)