High speeds at high speed

摘要

Juan Pablo Conti looks at the many ways in which the telecoms and transport industries are converging. UNTIL A few years ago, most of the convergence between the world's transport and telecoms systems involved the use of a single communications technology per application: a radio link between aircraft and control tower; a broadcasting link between radio station and radio car; a global satellite navigation signal tracking the location of a ship; or an electric railway signal alerting train drivers about the status of the line ahead.