Crowd indicators are best used for small decisions: shift your timing, choose a different station entrance, or switch routes early.
Station crowd indicators are a high-level snapshot — they are not a seat availability forecast. Use them as a quick signal of whether a station is trending calm, busy, or unusually congested compared to normal conditions.
Your goal is not perfection — it is reducing risk. A crowded station often causes knock-on delays that are worse than the extra minutes spent taking a slightly longer but calmer route.