I really like the cab view train rides and looking at the beautiful scenery and countryside on each side of the tracks have a great week and Thank You. 🚂🚃🚃🇳🇱
If you mean those on stations: The blue ones are for the older 5300 and 5400 type rolling stock. The minimum length for a 5300/5400 metro is longer than a single 5500/5600/5700 (the ones in this video we are on board with). So they require different stopping pattern to be stopped neatly. The white diamonds are for the 5600/700/500 type and the blue ones for 5300/400