There are **different types of traffic lights** according to the Traffic Regulations, and they are mainly classified into two categories: **for pedestrians and for vehicles**.

- **Traffic lights for pedestrians**: These traffic lights are specifically designed to regulate the crossing of pedestrians at intersections. They indicate when it is safe to cross the street and when they should wait.

- **Traffic lights for vehicles**: Within this category, there are several types:
- **Circular traffic lights**: These are the most common and regulate vehicle traffic in general. They use colored lights (red, yellow, and green) to indicate when vehicles must stop, prepare to move, or continue their journey.
- **Lane traffic lights**: They indicate the permitted direction for vehicles in a specific lane.
- **Traffic lights for certain vehicles**: For example, there are specific traffic lights for cycles and mopeds, which show a drawing of a cycle and whose indications do not apply to other types of vehicles.

Therefore, the correct answer is that there are traffic lights for both pedestrians and vehicles, covering a variety of situations and types of traffic.