Cameras?

 

Yes, roadside weather stations frequently include cameras. These installations are known within transportation agencies as Road Weather Information Systems (RWIS) or Environmental Sensor Stations (ESS), and optical sensors or cameras are standard components of modern setups.

Primary Functions of Roadside Weather Cameras

• Pavement Condition Verification: High-resolution fixed or pan-tilt-zoom (PTZ) cameras point directly at the roadway to visually verify whether the surface is dry, wet, snow-packed, icy, or treated with chemical de-icers.
• Visibility Assessment: Cameras provide visual confirmation of atmospheric visibility issues such as dense fog, blowing snow, smoke, or heavy rain.
• Sensor Validation: Road maintenance crews and meteorologists use imagery to cross-check real-time automated data (like surface temperature and friction sensors) against physical conditions.
• Maintenance Dispatch: Transportation departments (DOTs) rely on visual feeds to determine when and where to deploy snowplows, salt spreaders, or anti-icing sprayers.
• Public Traveler Information: Still images or video feeds are often pushed directly to state traveler information systems (such as 511 travel portals) so drivers can check route conditions before traveling.

Common Hardware on the Mast

A typical roadside RWIS tower usually bundles several components together:

• Cameras: Fixed environmental cameras aimed at the road surface, 360-degree PTZ cameras, or infrared/thermal cameras for nighttime imaging.
• Atmospheric Sensors: Anemometers (wind speed/direction), thermometer/hygrometer shields (air temperature and humidity), and optical visibility/precipitation gauges.
• Pavement Sensors: In-road pucks or non-invasive infrared sensors measuring pavement temperature, surface state, and chemical concentration.
• Communications & Solar Equipment: Antennas (cellular, radio, or satellite) and solar panels with battery enclosures for off-grid power.

(Note: While RWIS cameras monitor road and weather conditions, they operate independently from law enforcement systems like speed or red-light cameras.)