Miter, On a small island, bad development that doesn't comply with rational planning principles and makes tons of money for developers will always outpace needed infrastructure.  That's why there's horrible traffic on Oahu.  New infrastructure won't fix the traffic because the real problem is bad development.  When that problem is fixed, then there's a chance to fix traffic.  However, there's no indication that bad development will cease or even slow down.  Koa Ridge, with 3,500 homes, was recently approved for Central Oahu.  More traffic is being created as rail is being built.