People or vehicles moving at an usual speed could indicate people fleeing a scene either on foot or scooter / skateboards.
Our usual time speed algorithm finds people and vehicles that are moving at a speed that is not expected in the scene. Some examples of the types of events that this algorithm finds are:
People on scooters or skateboards
The speed algorithm determines typical speed expectations for people and vehicles in a scene at any given time and will raise an event when this speed changes.