Which term refers to short-range wireless communication between vehicles and roadside units for safety signals?

Which term refers to short-range wireless communication between vehicles and roadside units for safety signals?

• A. Gallery road
• B. DSRC
• C. Milestones
• D. Holloway

Answer: (B)

DSRC stands for Dedicated Short Range Communications, and it’s the term used for the kind of wireless link that lets vehicles talk with nearby roadside units to share safety information. This system is designed for very low latency and high reliability so warnings—like a car braking suddenly ahead or a red light ahead—arrive quickly enough to be acted on. It operates in the 5.9 GHz band and uses the IEEE 802.11p standard, fitting into the broader vehicle-to-everything (V2X) communications idea. Roadside units can broadcast safety signals, such as traffic signal timing information, while vehicles can broadcast their own status (speed, position, direction) to nearby vehicles and infrastructure. Other terms listed don’t describe this specific vehicle-to-vehicle and vehicle-to-infrastructure communication standard, so they don’t fit the concept.

DSRC stands for Dedicated Short Range Communications, and it’s the term used for the kind of wireless link that lets vehicles talk with nearby roadside units to share safety information. This system is designed for very low latency and high reliability so warnings—like a car braking suddenly ahead or a red light ahead—arrive quickly enough to be acted on. It operates in the 5.9 GHz band and uses the IEEE 802.11p standard, fitting into the broader vehicle-to-everything (V2X) communications idea. Roadside units can broadcast safety signals, such as traffic signal timing information, while vehicles can broadcast their own status (speed, position, direction) to nearby vehicles and infrastructure. Other terms listed don’t describe this specific vehicle-to-vehicle and vehicle-to-infrastructure communication standard, so they don’t fit the concept.