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For traffic signals, there are fundamental requirements that manufacturers must meet. If these basic requirements are not satisfied, it is difficult to meet quality standards. What are the key aspects of these requirements? First, the functionality must be comprehensive. Some manufacturers provide only red, yellow, and green lights without any additional indicators, such as turn arrows or countdown displays. While these signals may function, the lack of comprehensive features signifies inadequate quality.
Additionally, the accuracy of the system during the operation of traffic signals is crucial. These signals operate on a timed system that must remain orderly and accurate. Any confusion within the system can lead to incorrect traffic control at intersections. Therefore, it is essential for the entire timing mechanism to maintain high quality. If these basic requirements are not met, the traffic signal becomes unusable, resulting in chaos for pedestrians and vehicles, which signifies non-compliance.
Furthermore, it is important for traffic signals to have a long service life. Users expect these signals to endure over time, which necessitates robust protection against wind and rain, as well as resistance to weathering. Only with these qualities can the signal maintain good quality during its lifespan. Some manufacturers lack the necessary production measures, leading to product failures within a year of use, which is unacceptable.
