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Public safety agencies at various levels of government have joined together to share information and communicate when faced with
public safety Public security or public safety is the prevention of and protection from events that could endanger the safety and security of the public from significant danger, injury, or property damage. It is often conducted by a state government to ensu ...
incidents. Interagency collaboration initiatives of this nature result in the creation of public safety networks. Public safety networks may originate at any level of government, and their user base may span a single or multiple geographies. Such a network of public safety agencies, supported by an information and communications technology infrastructure, emerges from the individual and collaborative behaviors of their member agencies. This description focuses on public safety networks in the United States. Public safety networks have received more attention and priority as the country deals with increasing threats from terrorism and natural disasters. Public safety networks are defined differently as seen from different perspectives. From an organizational systems perspective a public safety network is an information technology (IT) enabled collaborative, inter-organizational system. From a communications network perspective it is a wireless network used by
emergency services Emergency services and rescue services are organizations that ensure public safety, security, and health by addressing and resolving different emergencies. Some of these agencies exist solely for addressing certain types of emergencies, while ot ...
. Both definitions are accepted within the public safety sector.


Organizational perspective

Public safety organizations are limited in their ability to communicate and share information with other agencies even though they have the technology in place to do so within their own boundaries. Public safety networks help agencies realize the value of joining together to design, develop and deploy information and communications technologies to support policing, criminal justice, public safety and homeland security. From the organizational perspective a public safety network is an interagency collaboration focused on the development and use of information and communication technologies (ICT) to support the information sharing and functional interoperability needs of public safety organizations engaged in law enforcement, criminal justice, and emergency response. As such a public safety network is a specific form of the broad class of inter-organizational information sharing systems (IOS) supporting information sharing among police and other public safety agencies. As an IOS a public safety network has an inherent complexity due to the wide range of factors that compromise the network. The formation, structure and operation of public safety network can be affected by any number of factors including rational choices made by public safety officials, political priorities, institutional considerations and capabilities of enabling ICT. The number of potential factors lending themselves to the explanation and understanding of public safety network is considerable. Organizational perspective on public safety networks have used frameworks from rational choice, institutional, and complexity theory to understand their formation and operations.


Communications perspective

From the communications perspective a public safety network is a wireless communications network used by emergency services organizations, such as police, fire and emergency medical services, to prevent or respond to incidents that harm or endanger persons or property. Many municipalities are turning to
mobile computing Mobile computing is human–computer interaction in which a computer is expected to be transported during normal usage and allow for transmission of data, which can include voice and video transmissions. Mobile computing involves mobile commun ...
and other networked applications to improve the efficiency of their workforce, including public safety personnel and first responders. Consequently, public safety workers are increasingly being equipped with wireless laptops, handheld computers, and mobile video cameras to improve their efficiency, visibility, and ability to instantly collaborate with central command, coworkers and other agencies.
Video surveillance Closed-circuit television (CCTV), also known as video surveillance, is the use of closed-circuit television cameras to transmit a signal to a specific place on a limited set of monitors. It differs from broadcast television in that the signal ...
cameras and unattended sensors are becoming important tools to extend the eyes and ears of public safety agencies. A pilot study along the US-Mexico border uses a wireless mesh network. The need to access and share this vital new flow of data and images is driving investments in a new kind of network: broadband
wireless mesh network A wireless mesh network (WMN) is a communications network made up of radio nodes organized in a mesh topology. It can also be a form of wireless ad hoc network. Chai Keong Toh Ad Hoc Mobile Wireless Networks, Prentice Hall Publishers, 2002. ...
s using
Wi-Fi Wi-Fi () is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for Wireless LAN, local area networking of devices and Internet access, allowing nearby digital devices to exchange data by ...
,
WiMAX Worldwide Interoperability for Microwave Access (WiMAX) is a family of wireless broadband communication standards based on the IEEE 802.16 set of standards, which provide physical layer (PHY) and media access control (MAC) options. The WiMA ...
, and 4.9 GHz public safety radio frequencies. These networks are metropolitan or regional in scope, can maintain connections with highly mobile workers, deliver large amounts of low-cost bandwidth with extremely high reliability, and support real-time video, voice and data.


See also

* Interorganizational system *
Information systems An information system (IS) is a formal, sociotechnical, organizational system designed to collect, process, store, and distribute information. From a sociotechnical perspective, information systems comprise four components: task, people, structu ...
*
Intergovernmental organizations An international organization, also known as an intergovernmental organization or an international institution, is an organization that is established by a treaty or other type of instrument governed by international law and possesses its own leg ...
*
Emergency Communication System An emergency communication system (ECS) is any system (typically computer-based) that is organized for the primary purpose of supporting one-way and two-way communication of emergency information between both individuals and groups of individuals ...
*
IEEE 802.11 IEEE 802.11 is part of the IEEE 802 set of local area network (LAN) technical standards, and specifies the set of medium access control (MAC) and physical layer (PHY) protocols for implementing wireless local area network (WLAN) computer com ...
*
Mesh networking A mesh network is a local area network network topology, topology in which the infrastructure Node (networking), nodes (i.e. bridges, switches, and other infrastructure devices) connect directly, dynamically and non-hierarchically to as many othe ...
*
Municipal broadband A municipality is usually a single administrative division having municipal corporation, corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality' ...
*
Public safety Public security or public safety is the prevention of and protection from events that could endanger the safety and security of the public from significant danger, injury, or property damage. It is often conducted by a state government to ensu ...
* Switched mesh *
Wireless LAN A wireless LAN (WLAN) is a wireless computer network that links two or more devices using wireless communication to form a local area network (LAN) within a limited area such as a home, school, computer laboratory, campus, or office building ...
*
Wireless network A wireless network is a computer network that uses wireless data connections between network nodes. Wireless networking allows homes, telecommunications networks, and business installations to avoid the costly process of introducing cables int ...
*
Wi-Fi Wi-Fi () is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for Wireless LAN, local area networking of devices and Internet access, allowing nearby digital devices to exchange data by ...
* 802.16


References

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External links



- The Public Safety Networks Study, projects #IIS-0534877 & #IIS-053488, sponsored by the National Science Foundation.

- The National Science Foundation Digital Government Research Program

- eGovernment Resource Centre
UMass Amherst
- National Center for Digital Government

- Bentley University Department of Information and Process Management

- Syracuse University School of Information Studies

- The Pennsylvania State University College of Information Sciences and Technology

- Washington & Jefferson College Department of Technology Leadership

- The Center for Technology in Government

- The Capital Wireless Integrated Net (CapWIN)

- Automated Regional Justice Information System (ARJIS)

- Pennsylvania Justice Network (JNET) Public safety networks,