This document provides information on various aspects of security, transportation, energy management, disaster relief, tourism and hospitality, and green buildings for a future city. It discusses technologies like intelligent doorbells, robot security guards, 360-degree surveillance cameras, concept planes, straddling buses, flying cars, policies around energy disclosure and green buttons, satellite disaster prediction, green roofs, green walls, and prioritizing alternative transportation to reduce parking needs. The document presents ideas and solutions across several sectors to consider for planning and developing a sustainable future city.