THE PROJECT AND ITS SETTINGS
Introduction The use of audible traffic lights at pedestrian crossing is to assist the vision less and disabled persons across any intersections. When reaching a pedestrian crossing, and knowing which direction to cross, the visionless and disabled persons must then know when to begin their crossing after hearing the audible traffic light’s signal sound. Since the traffic lights and the audible device are wired in parallel, as soon as the traffic light changed its color, the audible device will sound depending on the traffic light signal. It is important for the audible traffic light to be loud enough to be heard by the disabled persons over the traffic noise, and to have a different sound that is easy to distinguish.
Placing parallel audible traffic lights on each side of the road can also be used to enhance even more guidance to the vision less. The device are designed to emit a distinct sounds continuously during the GO or WALK phase of the traffic light cycle and emit no sound during the STOP or steady DON'T WALK phases.
However, these audible traffic signals do not necessarily guarantee safety, fast, and accurate crossing of intersections because they are only functionally limited to informing the pedestrian when it is already safe to walk.
Background of the study In past few years, the establishment of audible traffic lights has been one of the plans which our government has not been given any attention. For those who are unfamiliar or new with the concept, an audible traffic light is a road signal which has a buzzer, siren, bell or bird call, the aim of the project is to let a vision less or disabled person at the same time those who are not aware know when to cross an intersection. The logic of this project is that because mobility of impaired persons is much slower compared to the ordinary person when crossing the street, it results to reason that disabled