In 2010, $8.1 billion was spent globally on smart technology in cities in the US, and within the next five years, that number is projected to jump to $39.5 billion, greatly expanding the capacity for smart city projects around the world. Currently, there are 102 smart cities in the world. Europe has the most at 38, with North America following closely with 35. Asia has 21, the Middle East and Africa combined have six, and South and Central America have two. The “smartness” of a city is determined by these aspects: economy, environment, government, lifestyle, transportation and community.