I would disagree that traffic police is absent in Noida. They are very much present, not to maintain traffic, bu to earn money. You will never see them at spots where they are required i.e. managing traffic, yes you would see them stopping cars and extracting money.
Even police is quite dangerously funny. My friend's car got stolen from Sector 119. The police shows them the photo this might be the guy who would have taken the car and he has done many such incidents. Police post is few hundred meters from the spot of incident.
Actually citizen should have power to prosecute them when they are fund guilty, but the lack of will is there everywhere.