I see multi-level schools all over Singapore where land is very scarce, about the size of Oahu yet home to almost 6 million people and even more tourists. Oahu should look at what Singapore is doing to control traffic with a great public transportation system (trunk rail system up in only a few years in 1994, new lines added since then every year, kept costs down and very widely used and cheap; also great bus service in which riders pay for distance traveled via electronic fare cards as on the rail), high vehicle taxes and licenses. It makes no sense to pay the same fare to ride The Bus for a few blocks and around the island. While I don't like the blocks of housing units, they do provide living spaces for so many. Singapore is reaching a saturation point, though, and is very crowded and expensive. Hawaii needs to pay attention to what is going on there to learn lessons.