What are the two types of fiber optic cables commonly utilized in traffic signal systems?

In traffic signal systems, the two types of fiber optic cables commonly utilized are single-mode and multi-mode. Single-mode fiber optic cables have a smaller core diameter and are designed to carry light directly down the fiber with minimal signal loss. This allows for greater distances between repeaters, making it ideal for long-range communications and applications like traffic signal control systems where data needs to travel over significant distances without degradation.

On the other hand, multi-mode fiber optic cables have a larger core that allows multiple light modes to propagate, which makes them suitable for shorter distances. They are often used in local area networks and applications where high bandwidth is required over relatively short distances, converting light signals effectively in traffic signal systems within cities or neighborhoods.

Together, these types of fiber optic cables provide a flexible communication solution capable of meeting various traffic signal system needs, balancing distance and bandwidth requirements efficiently.