What information does the navigation light provide to the pilot?

Runway entrance lighting, runway end lighting, approach lighting.

1. Runway entrance light: This light is red, indicating the runway entrance. When a pilot sees a red light, it means that he can enter the runway safely.

2. Runway terminal light: This light is white, which is used to indicate the terminal of the runway and help the pilot to judge whether it is aligned with the runway center line or close to the runway landing point.

3. Approach lights: These lights are set around the runway to form a continuous light band to help pilots keep the correct glide path when landing.