Waianae won't get squat from the ruling democratic party. They know that only 10% of the people out there vote, and those that do vote mostly for Dems. They're viewed and treated much like the predominantly poor black inner city communities on the mainland. They get less because they are worth less in the eyes of the political elite decision makers.
And it's not just roads, it's schools, healthcare, parks and everything else that improves the quality of life for residents. Keep voting for the same corrupt politicians and expect a different result,