Browse Definitions :
Definition

automatic vehicle locator (AVL)

An automatic vehicle locator (AVL) is a device that makes use of the Global Positioning System ( GPS ) to enable a business or agency to remotely track the location of its vehicle fleet by using the Internet. These devices combine GPS technology, cellular communications, street-level mapping, and an intuitive user interface, with the ostensible goal of improving fleet management and customer service. For example, a company using an AVL system is able to pinpoint the longitude, latitude, ground speed, and course direction of a given vehicle. The vehicle's location can be quickly found and it could be rerouted to provide timely delivery to a nearby customer. AVL systems also enable companies to structure delivery routes more efficiently by compiling a database of vehicle information, including location of customers in relation to established delivery routes.

AVL systems generally include a network of vehicles that are equipped with a mobile radio receiver, a GPS receiver, a GPS modem, and a GPS antenna. This network connects with a base radio consisting of a PC computer station as well as a GPS receiver and interface. GPS uses interactive maps rather than static map images on the Web. This means users can perform conventional GPS functions such as zoom, pan, identify and queries.

AVL systems can be used to increase the accountability of field personnel and boost the efficiency of a company's dispatching procedure. Dispatchers can get a real-time snapshot of driver adherence to a route, provide customers with an estimated time of arrival, and communicate directly with drivers. Public safety agencies, such as police department or fire departments, can use AVL technology to improve response times by being able to dispatch the closest vehicles for emergencies.

Most AVL suppliers have created products that don't require dedicated servers and require minimal training of dispatchers. AVL systems use mouse clicks instead of keystrokes to page a single vehicle, a designated group of vehicles or an entire fleet. The Aertrax system, for example, operates without expensive receivers or other equipment. It can be operated with a PC or desktop that connects to the Internet. Aertrax includes a completely self-contained unit that uses a minimal amount of power from the vehicle in which it is installed. This unit transmits GPS location data, either on a regularly timed basis or in response to a command. This data is then converted into mapping that is instantly available via the Internet.

In Corpus Christi, Texas, a regional transit authority is collaborating with Texas A&M University-Corpus Christi to develop an AVL system that not only would enable it to track bus locations but also enable automated ridership data collection and dynamic routing. Until recently, the availability of GPS to the commercial and civil sectors had been controlled by the U.S. Department of Defense through an internationally imposed degradation standard known as Selective Availability. This standard degraded the accuracy of civilian GPS so that the highest degree of accuracy was reserved for the military. SA restrictions have since been lifted, enabling GPS to be dispersed for commercial application.

This was last updated in January 2011

Join the conversation

1 comment

Send me notifications when other members comment.

Please create a username to comment.

To learn more about AVL and GPS Tracking Solutions for vehicles visit www.HighPointGPS.com
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • compliance audit

    A compliance audit is a comprehensive review of an organization's adherence to regulatory guidelines.

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

SearchSecurity

  • orphan account

    An orphan account, also referred to as an orphaned account, is a user account that can provide access to corporate systems, ...

  • voice squatting (skill squatting)

    Voice squatting is an attack vector for voice user interfaces (VUIs) that exploits homonyms (words that sound the same but are ...

  • WPA3

    WPA3, also known as Wi-Fi Protected Access 3, is the third version of the security certification program developed by the Wi-Fi ...

SearchHealthIT

SearchDisasterRecovery

  • business continuity policy

    Business continuity policy is the set of standards and guidelines an organization enforces to ensure resilience and proper risk ...

  • business continuity and disaster recovery (BCDR)

    Business continuity and disaster recovery (BCDR) are closely related practices that describe an organization's preparation for ...

  • warm site

    A warm site is a type of facility an organization uses to recover its technology infrastructure when its primary data center goes...

SearchStorage

  • cache memory

    Cache memory, also called CPU memory, is high-speed static random access memory (SRAM) that a computer microprocessor can access ...

  • disk array

    A disk array, also called a storage array, is a data storage system used for block-based storage, file-based storage or object ...

  • enterprise storage

    Enterprise storage is a centralized repository for business information that provides common data management, protection and data...

Close