Events concentrate large, dynamic crowds into time-limited spaces, where small design decisions have outsized impact on experience, safety, and commercial outcomes. BIEM turns footfall, dwell, and engagement around stands, stages, and services into measurable signals that highlight hot and cold zones, ineffective routing, and missed sponsorship exposure. By tying these patterns to concrete locations and time slots, BIEM gives venues and organizers a defensible basis for reallocating staff, adjusting layouts, and optimizing programs during and between events.