Abstract
Traffic lights costs 0.5% of the gross domestic product (GDP) of the city due to heavy traffic, so multiple actions are being carried out to reduce this indicator and mitigate its effects. However, although Bogotá currently has around 1.400 signalized intersections, the importance of traffic lights in mobility is still vital. Besides technological change, city policies, preventive and corrective maintenance of traffic lights, this paper presents a study of power quality and harmonics analysis in traffic lights focused on the quality of the devices used, not from phenomena coming from the electrical network. Full LED lights, turn arrows, pedestrian and green halogen lights are tested over a special module to measure harmonic distortion and power factor before recommending THD levels for them.
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Notes
- 1.
The traffic light system is an essential component to control the city traffic, which allows the organized and safe use of the space available for the movement of vehicles and pedestrians, in order to safeguard their transit in a controlled way.
- 2.
Traffic lights are signaling devices by which the movement of vehicles, bicycles and pedestrians on the road regulated by assigning the right of crossing both to vehicles and to pedestrians by a priority sequence, according to indicating lights: red, yellow and green, operated by an electronic control unit.
- 3.
All the values of voltage, current, and power are in RMS.
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Rodríguez-Molano, J.I., Serrato, H.A., Parra, C.A. (2016). Analysis THD and Power Factor for Luminaries Implemented in the Traffic Light System of Bogota. In: Figueroa-García, J., López-Santana, E., Ferro-Escobar, R. (eds) Applied Computer Sciences in Engineering. WEA 2016. Communications in Computer and Information Science, vol 657. Springer, Cham. https://doi.org/10.1007/978-3-319-50880-1_25
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DOI: https://doi.org/10.1007/978-3-319-50880-1_25
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