Street sign colors convey important information and serve specific purposes. Here are some common street sign colors and their general meanings:
(1) Red: Red signs typically indicate regulatory information or prohibitions. They often convey instructions or restrictions that must be followed, such as "Stop," "No Entry," or "Do Not Enter."
(2) Blue: Blue signs are typically used for informational purposes. They may provide guidance, directions, or information about services, facilities, or attractions, such as parking signs, rest area signs, or tourist information signs.
(3) Green: Green signs are commonly used for directional signs, providing information about routes, destinations, or distances. They guide motorists to specific locations, such as street name signs, highway exit signs, or guide signs.
(4) Yellow: Yellow signs are often used to convey caution or warnings. They indicate potential hazards, changes in road conditions, or upcoming dangers, such as warning signs for curves, slippery roads, pedestrian crossings, or construction zones.
(5) Orange: Orange signs are typically used in construction or work zones. They warn drivers of temporary changes in traffic patterns, detours, or road maintenance activities.
(6) Brown: Brown signs are commonly associated with recreational or cultural destinations. They provide information about tourist attractions, parks, historical sites, or points of interest.

Black street signs are less common but can have specific meanings depending on the context and location. Here are a few possible interpretations of black street signs:
(1) Street name signs: In some areas, particularly in urban settings or certain design aesthetics, black street name signs may be used. The black color can provide a sleek and modern look, and the signs typically feature white or light-colored text for legibility. The purpose of these signs remains the same as traditional street name signs, indicating the names of streets or roads.
(2) Decorative or artistic signs: In certain cases, black street signs may be used for decorative or artistic purposes. These signs are typically found in specific neighborhoods, cultural districts, or as part of public art installations. They may feature intricate designs, symbols, or artistic elements while still serving the purpose of identifying streets or locations.

It's important to communicate with the manufacturer or vendor to get an accurate estimate of the production and delivery timeline for your specific custom street sign.

Reflective street signs typically use reflective materials, such as reflective vinyl or sheeting, that have properties to reflect light back to the source, increasing visibility for motorists and pedestrians. These materials are designed to meet specific standards and regulations for retroreflectivity, ensuring that the signs are easily visible and readable.

The font commonly used on street signs in the United States is called Highway Gothic, also known as FHWA Series fonts. Highway Gothic is a sans-serif typeface specifically designed for legibility on road signs. It features clear and distinct letterforms with consistent stroke widths.

Here are the approximate dimensions for standard street signs:
(1) Street name signs: Typical street name signs are rectangular and measure around 24 to 30 inches (60 to 76 cm) in width and 6 to 9 inches (15 to 23 cm) in height. These dimensions can vary based on local regulations and specific requirements.
(2) Regulatory signs: Regulatory signs, such as stop signs, yield signs, or speed limit signs, generally have dimensions of approximately 24 to 36 inches (60 to 91 cm) in width and height.