Systems and methods to detect an overcrowded area and to provide guidance to people in and in the vicinity of the overcrowded area are provided. A census module is configured to determine a number of mobile client machines located in a defined geographical area. A capacity module is configured to determine that a capacity assigned to the defined geographical area is exceeded. The capacity is a number of people that is used to provide an indication that the defined geographical area is overcrowded. The determination is based on the number of mobile client machines located in the defined geographical area. An exit module is configured to assign an exit route to an exit of the defined geographical area to a client machine of the mobile client machines within the defined geographical area. A navigation module is configured to transmit instructions comprising the exit route to the client machine.