Final answer:
A police officer has the authority to overrule a traffic signal. For example, if a police officer observes a malfunctioning traffic signal or a dangerous situation at an intersection, they can override the signal and manually control the flow of traffic.
Step-by-step explanation:
The authority that can overrule a traffic signal is a police officer. Police officers have the power to direct traffic and can overrule a traffic signal if they deem it necessary for public safety or to resolve a traffic situation. For example, if a police officer observes a malfunctioning traffic signal or a dangerous situation at an intersection, they can override the signal and manually control the flow of traffic.
authority that can overrule a traffic signal is a police officer. Police officers have the power to direct traffic and can overrule a traffic signal if they deem it necessary for public safety or to resolve a traffic situation. For example, if a police officer observes a malfunctioning traffic signal or a dangerous situation at an intersection, they can override the signal and manually control the flow of traffic.