This standard specifies the level of meteorological conditions that affect the operation of highway traffic. This standard applies to the highway safety and operation management work of the transportation department, and the meteorological department's highway meteorological monitoring and forecasting services; it also applies to the media and traffic information release. QX/T 111-2010 Level of meteorological conditions for highway traffic QX/T111-2010 Standard download decompression password: www.bzxz.net
This standard specifies the level of meteorological conditions that affect the operation of highway traffic. This standard applies to the highway safety and operation management work of the transportation department, and the meteorological department's highway meteorological monitoring and forecasting services; it also applies to the media and traffic information release.

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Meteorological Industry Standard of the People's Republic of China
QX/T111—2010
Grade of weather conditions for freeway transportation
Grade of weather conditions for freeway transportation2010-01-20Published
Implemented on 2010-06-01
People's Republic of China
Meteorological Industry Standard
Grade of weather conditions for freeway transportation
QX/T111—2010
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Terms and definitions
Classification of meteorological conditions affecting highway traffic 3.1
Classification of visibility impact
Rainfall intensity Impact level classification
Pavement high temperature impact level classification
Wind impact level classification
Snowfall impact level classification
Snow accumulation impact level classification
Sandstorm impact level classification
Principles for the classification of comprehensive traffic meteorological conditions on highways
QX/T111—2010
This standard is proposed by the National Technical Committee for Standardization of Meteorological Disaster Prevention and Mitigation (SAC/TC345). This standard is under the jurisdiction of the National Technical Committee for Standardization of Meteorological Disaster Prevention and Mitigation (SAC/TC345). QX/T 111—2010
This standard was drafted by Jiangsu Meteorological Science Research Institute (Nanjing Transportation Meteorological Research Institute), and Jiangsu Ninghu Expressway Co., Ltd. participated in the drafting.
Main drafters of this standard: Ka Guanghui, Yuan Chengsong, Zhou Zengkui, Jiao Shengming, Wu Jingang, Yan Mingliangm
Grades of meteorological conditions for highway traffic
This standard specifies the grades of meteorological conditions that affect highway traffic operation QX/T111—2010
This standard applies to the highway safety and operation management work of the transportation department, and the meteorological monitoring and forecasting services for highways carried out by the meteorological department; it also applies to the media and traffic information release. 2 Terms and definitions
The following terms and definitions apply to this standard. 2.1
Rainfall intensity
rain strength
Rainfall in one hour (1h) or one minute (1min). The unit is millimeter per hour (mm/h) or millimeter per minute (mm/min).
Pavement temperature
road surfacetemperature
The temperature of the highway pavement (including bridge deck).
Visibility
visibility
During the day, it refers to the maximum horizontal distance at which a target object (black, moderate size) can be seen and identified from the sky background by a person with normal vision (contrast reading value is 0.05) under the prevailing weather conditions; at night, it refers to the maximum horizontal distance at which a medium-intensity luminous body can be seen and identified. The unit is meter (m).
Classification of meteorological conditions affecting highway traffic 3
Classification of visibility impact
Based on the classification of visibility (L) affected by fog on highways, see Table 1. Table 1
Classification of visibility (L) affected by fog on highways Classification
Classification of rainfall intensity impact
Classification standard
200m
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