Mobile phone location determination and its impact on intelligent transportation systems

Research and development on the technologies of locating the mobile (wireless) phone caller have been rapidly gaining momentum around the world. Once these technologies are mature enough to be deployed, they will have significant impact on automotive telematics and modern public transit systems. In this paper, we discuss why locating mobile phones becomes a hot topic among telecommunications giants, what technologies are being studied and standardized, when we are going to see the actual deployment, and what services they may provide? We then consider its potential impact on future intelligent transportation systems, including telematics and public transit systems. Many of us have already recognized how important a role the communications systems play in modern transportation. In the near future, if every mobile phone is able to determine its location, advances in our current transportation systems become inevitable