Development will continue, with or without this approval.  Look at the boundries of GV: https://www.google.com/maps/place/Greenwood+Village,+CO/ the development would have been in the very small area east of Quebec and west of I-25. Regardless of what GV votes up or down, the people are coming, the traffic is coming, and your little island won't protect you.  You can either be part of the future or remain in the past.