Practically speaking, during any large event the attendees must be managed for their own safety and for proper traffic flow. Some companies specialize in products for crowd control at events, including portable barriers, posts with ropes or chains, turnstiles, and so forth. These products are also useful in subways, and other high foot traffic situations.
This category contains companies whose primary business is crowd control at special events and other high foot-traffic environments. This includes manufacturers, retailers, rental houses, and production services companies.