This document discusses intelligent transport systems (ITS) and their applications in urban transport. It describes 7 key areas of ITS: (1) traveler information, (2) traffic management, (3) public transport, (4) electronic payment, (5) commercial vehicle operations, (6) emergency management, and (7) vehicle safety and control systems. Each area contains several ITS applications. The document also discusses the physical and logical architectures of ITS, including components, data flows, and standards. The goal is to improve transportation system efficiency, safety, and sustainability through information and communication technologies.