The engineering school played a leadership role in bringing about MetroTech Center, one of the largest urban university-corporate parks in the world and the largest in the United States. Today, the 16-acre (65,000 m²), $1 billion complex is home to the institute and several technology-dependent companies, including Securities Industry Automation Corporation (SIAC), New York City Police Department's 911 Center, New York City Fire Department Headquarters and the U.S. technology and operations functions of JPMorgan Chase. In 1998, a Marriott Hotel was built adjacent to MetroTech. MetroTech has proven to be a case study in effective university, corporate, government and private-developer cooperation. It has resulted in renewing an area that once was characterized more by urban decay.