safety bicycle, with pneumatic tires, at last appeared. Some of theearliest automobiles ran on four bicycle wheels.65.66.The AutomobileIn England for some times after 1800 it seemed that the future ofmechanical road transportation with the steam carriage. Stemtraction engines were a familiar sight on many roads throughout theworld toward the end of the 19th century.67.68.Air TransportNot until the development of the internal combustion engine can theera of air transportation be said to have begun. Men were makingballoon and flights, however, or more than a century before Wilburand Orville Wright made their famous first flight at Kitty Hawk,North Carolina, USA, in 1903. The progress of air transportation washastened by World Wars I and II. An important advances in aircraftpropulsion occurred with the invention of the jet engine. Until thisinvention practically every great advance in transportationtechniques had been the result of the application of the principle ofrotary motion.69.70.PART I GENERAL PRINCIPLES71.What is Traffic Management?•The application of the processes and skills in planning, organizing, staffing, directing, coordinating, and budgeting to traffic affairs. •Activities undertaken by a highway transportation agency to improve roadway system safety, efficiency and effectiveness for both providers and consumers of the transportation services.OBJECTIVES OF TRAFFIC MANAGEMENT72.1. To make the traffic way safer for travelers.73.2. Expedite the movement of traffic74.3. To provide convenience to the traffic efficiency in the utilization of the traffic way. 75.76.The Word TrafficThe word traffic originates from Greco-Roman word “Trafico” with reference to the movement of people that dates back from the dawns of history: fromthe domesticated horse-drawn wheels to horseless carriage. The Greek originally called the system “Trafriga” after the early horse-drawn chariots withspoked wheels. If savants of Rome are to believed, there is no dispute that the word “Trafico” is a Greco-Roman word, but the word traffic was createdfrom the famous “Trafalgar Square,” the hub-center of commerce and culture in the heart of London. But in Latin, the word traffic is denominated as “Commercium” with reference to the movement and control of goods in transit from un-wheeled axle tohorseless carriage. This intellectual discourse of discoveries only reinforced the universal dictum that traffic refers to the movement of people and goodsand not vehicle. Perhaps this is the missing jewels in the systematic strategies of traffic management.77.Legal Basis in the Traffic Management Process1.Republic Act No. 4136, “The Land Transportation Code of the Philippines, as Amended”.2.Republic Act No. 7160, “The Act Providing for a Local Government Code of 1991”.