Prof. Klaus Banse, President of ITS Colombia and Ing. Robert Miranda, Head of the Traffic Management and Control System of Cartagena de Indias, Columbia, outline early cost benefits of an adaptive traffic control system. At the beginning of this year, Cartagena de Indias, located on the north coast of Colombia in the Caribbean, implemented a new adaptive traffic control system on 52 intersections with an investment of US$4.5 million.