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2. Driveway alarm - Wikipedia

   en.wikipedia.org/wiki/Driveway_alarm

   A driveway alarm is a device that is designed to detect people or vehicles entering a property via the driveway.A driveway alarm system is often integrated as a component of a system which automatically performs a task or alerts home owners of an unexpected intruder or visitor.

3. Security alarm - Wikipedia

   en.wikipedia.org/wiki/Security_alarm

   Driveway alarm systems can be combined with most security and automation systems. They are designed to alert residents to unexpected visitors, intruders, or deliveries arriving at the property. Types of driveway sensors include magnetic and infrared motion sensors. Driveway alarms can be found in both hard-wired and wireless systems.

4. Collision avoidance system - Wikipedia

   en.wikipedia.org/wiki/Collision_avoidance_system

   General Motors' collision alert system was introduced in GMC Terrain SUVs in 2012. It uses a camera to provide a warning when there is a vehicle ahead or there is a lane departure. [27] The 2014 Chevrolet Impala received the radar- and camera-based crash imminent braking (radar technology detects a possible crash threat and alerts the driver ...

5. Early warning system - Wikipedia

   en.wikipedia.org/wiki/Early_warning_system

   A HSS Engineering TWS 295 electronic sirens warning Civil Defense siren. An early warning system is a warning system that can be implemented as a chain of information communication systems and comprises sensors, event detection and decision subsystems for early identification of hazards.

6. ‘It just keeps coming and coming’: Heavy lake-effect snow ...

   www.aol.com/news/heavy-lake-effect-snow-creates...

   The declaration includes Erie County, where Amherst officials on Saturday issued a code blue alert, ... “It took my husband over two hours to clear the driveway with his snowblower, and we have ...

7. Traffic warning sign - Wikipedia

   en.wikipedia.org/wiki/Traffic_warning_sign

   These signs are often temporary in nature and used to indicate road work (construction), poor roads, or temporary conditions ahead on the road including flagmen, uneven pavement, etc. (Note that some "high water" signs are posted to alert drivers of a flood-prone area and do not actually mean that there is a flooded section of road ahead.)