Highway Alert System
Abstract
The project that we have done here can be used for safe highway driving. The lamp automatically emits brilliant tri-colour light when a vehicle approaches the rear side of the vehicle. And turns off when the approaching vehicle overtakes. This Ultra-bright blue yellow and redheads of the signal alert lamp emits very bright light to alert vehicle's driver even during daytime, giving additional safety during night or when we need to stop our vehicle on the side of the highway.
Traffic lights, which may also be known as stoplights, traffic lamps, traffic signals, stop-and-go lights robots or semaphore, are signalling devices positioned at road intersections, pedestrian crossings and other locations to control competing flows of traffic. This research project involved the simulation of traffic light control systems, which included the examination of the performance characteristics, reliability, and cost of these technologies. The detection technologies included in this study were video image detection and a system based on inductive loops. One product was required for this project: a specification for the procurement, installation, testing, validation, verification, calibration, and maintenance of automated traffic light control system and components.
The information gathered from this project will also serve as an aid for further research into newer simulation technologies. The software developed will simulated traffic light control in a cross junction. The implementation of the system was carried out using visual basic 6.0




CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
On December 10, 1868, the first traffic lights were installed outside the British Houses of Parliament in London, by the railway engineer J. P. Knight. They resembled railway signals of the time, with semaphore arms and red and green gas lamps for night use. The gas lantern was turned with a lever at its base so that the appropriate light faced traffic. Unfortunately, it exploded on 2 January 1869, injuringor killing the policeman who was operating it.
The modern electric traffic light is an American invention. As early as 1912 in Salt Lake City, Utah, policeman Lester Wire invented the first red-green electric traffic lights. On 5 August 1914, the American Traffic Signal Company installed a traffic signal system on the corner of East 105th Street and Euclid Avenue in Cleveland, Ohio. It had two colors, red and green, and a buzzer, based on the design of James Hoge, to provide a warning for color changes. The design by James Hoge allowed police and fire stations to control the signals in case of emergency. The first four-way, three-color traffic light was created by police officer William Potts in Detroit, Michigan in 1920. In 1922, T.E. Hayes patented his "Combination traffic guide and traffic regulating signal" (Patent # 1447659). Ashville, Ohio claims to be the location of the oldest working traffic light in the United States, used at an intersection of public roads until 1982 when it was moved to a local museum.
The first interconnected traffic signal system was installed in Salt Lake City in 1917, with six connected intersections controlled simultaneously from a manual switch. Automatic control of interconnected traffic lights was introduced March 1922 in Houston, Texas. The first automatic experimental traffic lights in England were deployed in Wolverhampton in 1927. In 1923, Garrett Morgan patented his own version. The Morgan traffic signal was a T-shaped pole unit that featured three hand-cranked positions: Stop, in all -directional stop position. This third position halted traffic in all directions to allow pedestrians to cross streets more safely. Its one "advantage" over others of its type was the ability to operate it from a distance using a mechanical linkage.
The color of the traffic lights representing stop and go might be derived from those used to identify port (red) and starboard (green) in maritime rules governing right of way, where the vessel on the left must stop for the one crossing on the right.
Timers on traffic lights - The Greenwalking originated in Taipei, Taiwan in March 18 , 1999, and brought to the US after an engineer discovered its use. Though uncommon in most American urban areas, timers are still used in some other Western Hemisphere countries. Timers are useful for drivers/pedestrians to plan if there is enough time to attempt to cross the intersection before the light turns red and conversely, the amount of time before the light turns green......visit http://projecttopics.org/2013/03/05/computer-science-abstract/