2TWNTY4 is a platform providing insight and predictions in Emergency Department (ED) crowding. The web-based application specifies real time insight in ED crowding, actual waiting times and hospital bed capacity. We provide these insights for the entire acute chain, including the ED’s, ambulances and general practitioners. These insights will improve the capacity management and prevent overcrowding in emergency care. We support 24/7 availability of emergency care, when every second counts.