IMAGINE public recycling bins that use radio-frequency identification technology to credit recyclers every time they toss in a bottle; pressure-sensitive floors in the homes of older people that can detect the impact of a fall and immediately contact help; cellphones that store health records and can be used to pay for prescriptions.

These are among the services dreamed up by industrial-design students at California State University, Long Beach, for possible use in New Songdo City, a large "ubiquitous city" being built in South Korea.

A ubiquitous city is where all major information systems (residential, medical, business, governmental and the like) share data, and computers are built into the houses, streets and office buildings. New Songdo, located on a man-made island of nearly 1,500 acres off the Incheon coast about 40 miles from Seoul, is rising from the ground up as a U-city.

Although there are other U-city efforts in South Korea, officials see New Songdo as one apart. "New Songdo will be the first to fully adapt the U-city concept, not only in Korea but in the world," said Mike An via an e-mail message. Mr. An is the chief project manager of the Incheon Free Economic Zone Authority, the government agency overseeing the project.