Road Weather Stations
Road weather station is an integral part of the road weather information system(RWIS).
It provides a lot of monitoring data for meteorological disaster early warning.
Today, Let’s dive right in.
CHAPTER 1:
A road weather stations are no longer strange, it can be seen everywhere on both sides of the road. It can be said that it has entered our lives and served our lives.
In the future, it will be integrated into the field of intelligent driving and play a greater role.
Let’s get to know it.
A road weather station is a meteorological monitoring instrument composed of various sensors, which is used in the field of transportation.
It includes temperature and humidity sensors, wind direction and speed sensors, air pressure sensors, rainfall sensors, these conventional observation items.
It also includes special sensors such as visibility sensors, road sensors(pavement condition, road temperature, road icing) and so on.
Generally installed on both sides of the highway road, solar power supply, and cable transmission (Optical fiber/Lan/RS).
CHAPTER 2:
RWIS is an important part of intelligent transportation systems. It contains not only monitoring hardware, but also background service center.
The platform will eventually output detailed road warning information for different weather conditions, thus serving road traffic safety.
We will make a brief and intuitive exposition step by step.
RWIS is a set of hardware including the front-end road meteorological station, external satellite weather forecast data, traffic meteorological mathematical model algorithm, and finally forms a complete meteorological road early warning information system.
Weather information is important in supporting a variety of road maintenance operations.
However, more detailed weather information such as road surface temperature and condition is needed to support anti-icing and plowing/de-icing operations.
For this purpose road weather information systems (RWIS) were developed and are nowadays a critical component of winter maintenance decision-making.
Benefits of using RWIS:
CHAPTER 3:
There are many kinds of monitoring sensors in road weather stations, and the changes of each monitoring factor have different effects on transportation.
The following are general descriptions of the main monitoring factors.
Low Road visibility is the main meteorological disaster that affects traffic.
Road visibility has a direct impact on traffic safety, especially on highway traffic safety.
The low road visibility weather often causes the congestion and sealing of the highway, which leads to the interruption of traffic and transportation.
Due to the influence of the dense fog, there are even dozens of heavy traffic accidents that collide with hundreds of cars on the expressway, causing huge economic losses and casualties, causing great loss to the people’s life, property, local economy and the economic benefits of the highway itself.
Due to the networking of highways, the closure of some highways often leads to traffic jams and even traffic failures on other roads or small towns.
In addition, serious traffic accidents caused by low road visibility are more shocking.
According to statistics, traffic accidents caused by the influence of heavy fog on the expressway account for about 1/4 of the total number of accidents, and the accident rate of freeway in fog is 10 times as high as usual.
Strong wind, hail and other strong convective weather can also have a greater impact on traffic, the wind can cause serious damage to buildings, traffic facilities, and so on.
When the motor vehicle is overturned by the wind, the ability of the car to drive in the wind and the ability to catch the tires is obviously weakened.
According to the theory of wind pressure, the square of the wind speed is proportional to the wind area.
When the body wide side is subjected to wind, the force is the largest. The wind speed is above 12m/s, the steering wheel is easy to malfunction and should slow down slowly.
The critical wind speed of the highway accident is often 15m/s, the corresponding gust can reach 22m/s.
If it is accompanied by rain, the car is more difficult to control.
The phenomenon of frost and snow caused by low temperature directly affects the friction coefficient of pavement.
Road icing and snow will greatly reduce the friction coefficient of the road, and the safe braking distance of the vehicle will also increase correspondingly.
Due to the rapid cooling of the bridge or the draught section, the road is easy to freeze.
It is easy to cause traffic accidents when the motor vehicle passes through these roads on the normal road.
Snow, avalanche, snow and other snow damage to railway traffic is also very important, mainly in snow buried track, slippery road, visibility reduced, driving speed, train late, and even cause subversion of the train.
When the snow is more than 70cm, it will cause snow resistance, traffic interruption.
At low temperature and rainy weather, the ground is slippery and easy to freeze, which will cause a huge safety hazard to traffic, and a non-contact surface condition road sensor can be used to monitor the road information in real time.
CHAPTER 4:
Road weather stations can be seen everywhere. They can be found in every corner of our lives and play a huge role.
CHAPTER 5:
Road Weather Information System is already a trend in our current life. I hope the audience can learn more from other aspects. Including Wikimedia/Patent/Video and so on.
CHAPTER 6:
The factories of road weather stations are all over the world. How can we choose the most suitable one?
When you come to this page, ZATA Road Weather Station has appeared in front of you.
I believe that when you finish reading the introduction below, you will make the right purchase decision.
CHAPTER 7:
Although you have read the detailed introduction above, you have a general understanding of the road weather station. Next, I will make the following guesses about future road weather stations.
CHAPTER 8:
Here are some common questions about road weather stations. We will update them regularly through customer feedback.
I hope you can find the answers here. If you have more questions, please email to us.
What is Road Weather Station
A road weather station is a meteorological monitoring instrument composed of various sensors, which is used in the field of transportation.
What Is Road Weather Information System
RWIS is a set of hardware including the front-end road meteorological station, external satellite weather forecast data, traffic meteorological mathematical model algorithm, and finally forms a complete meteorological road early warning information system.
Monitoring Range and Deployment Distance of Road Meteorological Station
Because the hardware device detects the microenvironment, there is no accurate range and distance.
The more intensive the deployment, the higher the monitoring accuracy.
This is also related to the local topography. Here is a reference.
The spacing of observation stations in fog-prone areas is 20-50 Km
The spacing of observation stations in seasonal fog-prone areas is 10-15 Km
The distance between observatories in foggy mountainous areas is 3-5 Km.
Which Data Transmission Types Are Supported
RS485 / RS232 / Zigbee / NB-IoT / Lora / GPRS / LTE 4G
How About the Price of Road Weather Stations
Prices vary from different manufacturers.
It is necessary to select suitable suppliers according to the types of monitoring elements.
The price of the ZATA weather stations range from several hundred to ten thousand dollars.
Maintenance Cycle of Road Weather Stations
The maintenance period of conventional road sensors is 3 months to 6 months. It depends on the contamination of the sensor.
For example, the inlet/outlet of the tipping rain sensor is blocked by foreign bodies, and the bearing of the mechanical wind sensor is worn.
ZATA Agricultural Meteorological Station is maintenance-free, because its integrated design features do not require regular maintenance. This will greatly improve the efficiency of customer use.
I hope you enjoyed this application article.
Now I’d like to hear from you: Do you have anything else about road weather stations?
Could you make the right purchase decision?
Either way, let me know by leaving a quick comment below.
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ZDR100 Tipping Bucket Rain Gauge Scroll to top 
I like that you talked about how the sensors would also be able to monitor the temperature and humidity and other observational items. With that in mind, one must have bridge sensors for their structures to ensure that the people will feel safe when driving through the structure. It will ensure that the information needed would be evaluated to ensure the right weight will be followed to prevent damages to the bridge.