What do the letters on traffic signs mean?
Based on their use, signboards can be categorized into: warning signs, prohibition signs, directional signs, guide signs, tourist area signs, and construction signs. The colors of traffic signboards consist of the background color, graphic or text color, structural color, and lining color. The entire structure of the signboard includes the sign base, slope and reinforcing bars, sign face, bracket, fasteners, and the sign itself.
As the economy grows, the construction of highways becomes increasingly完善, bringing great convenience to people's travel. While driving on highways, have you ever paid close attention to the signs on the roadside? What do these confusing "letters" and "numbers" mean? What's the difference between highways and national roads? What's the difference between interchanges?
What do the letters on the sign mean?
Highway: Starts with uppercase "G" (Highway). Provincial roads are followed by a single digit. Two-digit numbers and two-digit numbers with an identification code. Highways followed by three digits are classified as local roads.
What do the numbers of traffic signs mean?
Highway Signage:
The highway network centered around Beijing, represented by GX (a single-digit number), includes routes such as G4, Beijing-Hong Kong-Macau Highway.
2. Gxx (two digits) indicates that two even numbers represent east-west expressways, such as G72 Quannan Expressway; while two odd numbers denote north-south longitudinal highways: such as G55 Er-Guang Expressway.
3. The Ring City Expressway is indicated by a four-digit code, such as g0401 for the Changsha Ring City Expressway, 04 (radial expressway starting from Beijing), and 01 (First Ring Expressway).
Highway: The first letter indicates a national radial highway centered in Beijing (1), 2 indicates north-south direction, and 3 indicates east-west direction.
Highway: The letter indicates 1 for a radial highway centered around the provincial capital city, 2 for north-south direction, and 3 for east-west direction.
