3 ms·
Trains at my U-Bahn station are as frequent as every two/three mins sometimes. There is no "the train they should be on".
by patrickmcnamara 2y ago
Trains at my U-Bahn station are as frequent as every two/three mins sometimes. There is no "the train they should be on".
- armada651 2y agoRight, but the vibration detection isn't used to detect which train they're on according to the article.