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Term Definition
Aftermarket Safety Device (ASD ) A connected device, not integrated during vehicle manufacture, but added after sale. It is installed in a vehicle, and capable of sending and receiving messages over a DSRC wireless communications link. The device has a driver interface, runs V2V and V2I safety applications, and issues audible or visual warnings and/or alerts to the driver of the vehicle.
Application A software program with an interface that provides functionality enabling people to realize safety, mobility, environmental, or other benefits.
Cellular Telecommunications Industry Association (CTIA) An industry trade group that represents the international wireless telecommunications industry. Its members include cellular, personal communication services and enhanced specialized mobile radio providers and suppliers, and providers and manufacturers of wireless data services and products.
Connected Vehicle Reference Implementation Architecture (CVRIA) A research effort by the ITS JPO that aims to identify key interfaces of the Connected Vehicle environment and to develop a plan for Connected Vehicle Standards.
Connected Vehicle Trade Association (CVTA) A non-profit business league established to facilitate the interaction, and advance the interests, of the entities involved in the vehicle communication environment. The association enables the collaboration of companies, organizations, and governmental bodies engaged in developing bidirectional vehicle communications. Membership is open to any corporation, public entities, standards and specification organizations, educational institutions and qualified individuals.
Connected Vehicles (CV) Connected vehicles interact with each other (V2V), the roadside (V2I), and beyond (V2X) via wireless communications.
CV Penetration The proportion of a vehicle fleet that is equipped with CV technology.
Dedicated Short-Range Communications (DSRC) DSRC is a two-way short- to- medium-range wireless communications capability that permits very high data transmission critical in communications-based active safety applications.
Early Adopter A person who starts using a CV product or technology as soon as it becomes available.
Electric Vehicle (EV) A vehicle that uses one or more electric motors or traction motors for propulsion.
Emergency Responders Staff of providers of emergency services, including public safety providers. Examples include law enforcement, fire department, ambulances, or environmental protection agencies that respond to hazmat incidents.
Intelligent Transportation Systems (ITS) ITS are defined as the application of advanced information and communications technology to surface transportation in order to achieve enhanced safety and mobility while reducing the environmental impact of transportation.
Interoperability The ability of two or more systems or components to exchange information and to use the information that has been exchanged.
Metropolitan Planning Organization (MPO) A federally mandated and federally funded transportation policy-making organization in the U.S. that is made up of representatives from local government and governmental transportation authorities.
Mobility The ease with which members of a society move using transportation infrastructure such as roadways, bridges, pedestrian walkways, bike lanes, rail, etc.
Moving Ahead for Progress in the 21st Century (MAP-21) The Moving Ahead for Progress in the 21st Century Act (P.L. 112-141), was signed into law by U.S. President Barack Obama on July 6, 2012. Funding surface transportation programs at over $105 billion for fiscal years (FY) 2013 and 2014, MAP-21 is the first long-term highway authorization enacted since 2005.
Naturalistic Testing Testing of new technologies in a real-world setting or one that closely mimics or resembles the context and elements that are present in real-world settings.
On-Board Unit (OBU) A vehicle mounted device used to transmit and receive a variety of message traffic to and from other connected devices. Also referred to as On-Board Equipment (OBE).
Opt-In Services A connected vehicle may require a user to opt-in prior to transmitting any ‘sensitive’ data. Each opt-in prompt shall provide the user with a full description of the data that may potentially be transmitted if the user agrees to the option.
Professional Capacity Building (PCB) PCB provides the ITS workforce with flexible, accessible ITS learning through training, technical assistance and educational resources. The program assists transportation professionals in developing their knowledge, skills, and abilities to build technical proficiency while furthering their career paths.
Roadside Unit (RSU) A connected device that is only allowed to operate from a fixed position (which may in fact be a permanent installation or from temporary equipment brought on-site for a period of time associated with an incident, road construction, or other event). Some RSUs may have connectivity to other nodes or the Internet. Also referred to as Roadside Equipment (RSE).
Security Credential Management System (SCMS) Security system for cooperative vehicle-to-vehicle crash avoidance applications using 5.9 GHz DSRC wireless communications.
Social Equity The situation in which all people within a society or group have the same status with respect to access to and use of CV technology and products.
Transportation Agencies Traffic operations agencies at any level of government (e.g., national, state or local), transit agencies, toll authorities, or private companies operating a highway concession. Also include private information service providers who might collect vehicle data to support, and commercial vehicle credentials and safety agencies, as well as maintenance personnel.
Vehicle-to-Infrastructure (V2I) Communications The wireless exchange of (critical safety and operational) data between vehicles and highway infrastructure, intended primarily to avoid or mitigate motor vehicle crashes but also to enable a wide range of other safety, mobility, and environmental benefits.
Vehicle-to-Vehicle (V2V) Communications The dynamic wireless exchange of data between nearby vehicles that offers the opportunity for significant safety improvements and a wide range of other mobility, and environmental benefits.