Refer to figures.
ICAO Annex 14
5.3.10 Runway threshold and wing bar lights

Application of runway threshold lights
5.3.10.1 Runway threshold lights shall be provided for a runway equipped with runway edge lights, except on a non instrument or non-precision approach runway where the threshold is displaced and wing bar lights are provided.

Characteristics of runway threshold and wing bar lights
5.3.10.9 Runway threshold and wing bar lights shall be fixed unidirectional lights showing green in the direction of approach to the runway. The intensity and beam spread of the lights shall be adequate for the conditions of visibility and ambient light in which use of the runway is intended.

5.3.11 Runway end lights

Application
5.3.11.1 Runway end lights shall be provided for a runway equipped with runway edge lights.

Note: When the threshold is at the runway extremity, fittings serving as threshold lights may be used as runway end lights.

Characteristics
5.3.11.4 Runway end lights shall be fixed unidirectional lights showing red in the direction of the runway. The intensity and beam spread of the lights shall be adequate for the conditions of visibility and ambient light in which use of the runway is intended.

According to ICAO Annex 14, the runway threshold lights show green in the direction of approach to the runway and the runway end lights show red.

• The green runway threshold lights show green in the direction of approach to the runway.
• The red runway end lights show red in the direction of the runway.

Since the threshold is not displaced, the pilot can only arrive from the right side (The left side is outside of the runway area). Then the pilot has to make a 180-degree turn to align with the runway.

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