Maybe Oahu’s biggest prolongation ever happened on September 5, 2006 – “Black Tuesday” – when an excavator being transported on an Army flatbed truck slammed into an overpass on the H-1 freeway. Tens of thousands of homeward-bound commuters were stopped for hours, and some spent the night in Waikiki hotels rather than wait out the hours-long traffic jam.
Grade-separated transit is the only commuting mode that allows users to accurately predict their time of arrival at their destination before they even leave the station. You can’t do that consistently if you drive or take TheBus; there's just too much usual and unexpected traffic congestion.
Honolulu rail’s trains will operate on a timetable. That’s something you can count on.
Check this out: The comments below Yes2Rail posts are worth reading, since they often contain valuable lessons and insights. Friday's post has a couple we'd bring to your attention.