Do you have a source for this claim that traffic is one-way? This article from 2003 talked about two-way traffic on the canal: https://pancanal.com/en/panama-c

Do you have a source for this claim that traffic is one-way? This article from 2003 talked about two-way traffic on the canal: https://pancanal.com/en/panama-canal-begins-tests-of-simultaneous-two-way-transits-at-canals-most-narrow-channel/ https://pancanal.com/en/panama-canal-begins-tests-of-simulta...