RUNWAY MARKINGS - A COMPLETE VIDEO [ANNEX 14] 

Airports can be complicated places. They’re generally flat, with no easy to identify visual landmarks. There’s no standard layout or design-no usual way things are organized. Pilots visiting unfamiliar airports are at a considerable disadvantage, especially if the visibility is low or the weather is bad.
To help them navigate safely, airport markings and signs are standardized the world over. Even still, it’s vitally important that pilots know where they are and where they are going when taxiing around the airport.
So enjoy this video on visual Aids Part-I Runway markings.