Braille Trail Interpretive Signage Services

The Vendor is required to provide braille trail interpretive graphic panels shall be fabricated using a fiberglass embedded inkjet process designed for long-term outdoor interpretive signage.
- Frames
•    Panels shall fit in pannier low profile bases (cantilevered) style frames 36”x 24” and upright and landscape bases and kiosks 36”x 52”
- Design
•    All graphic panel designs will be provided by department digitally. 
•    Shall submit a full color proof of the provided design to department for review and approval prior to constructing the graphics panel. 
•    The contractor shall make any changes as requested by department until final approval is received. 
•    The ability to request hard-copy proofs at a reduced scale and have them shipped to department is required.
- Accessibility requirements
•    Signage shall include accessible features including tactile text, grade 2 braille, and tactile graphics
1. Braille
•    Grade 2 contracted braille following the English braille American edition (EBAE) standards.
•    Rounded or domed braille dots.
•    Positioned minimum 3/8 inch below corresponding tactile text.
•    Generally lowercase, except where capitalization is required.
2. Tactile characters
•    Raised minimum 1/32 inch above the background surface
•    Character height 5/8 inch to 2 inches
•    Stroke width 1/8 inch to 3/16 inch
•    Sans-serif, uppercase
•    Rounded or beveled edges
•    Minimum 3/8-inch margin from borders or graphics
- Tactile graphics and images
1. Tactile graphics may include:
•    The numbers on each panel will be raised, along with the outline of the circle around them.
•    Raised illustrations of plants, animals, or landscape features
•    Tactile maps or orientation diagrams
•    Simplified raised outlines of important visual elements
•    QR codes on each panel should also be indicated by a raised feature of some kind.
2. Design standards:
•    Simplified to essential shapes
•    Clear tactile separation between elements
•    Use textures to distinguish features
•    Lines thick enough to be traced by touch
•    Avoid excessive details that cannot be interpreted tactually
- Materials and finish
•    High pressure laminate (HPL) with tactile layer
•    Photopolymer
•    Cast aluminum
•    High-impact acrylic
•    Cast acrylic
•    Engineered plastics
•    Metal
- Durability requirements
•    UV radiation and fading
•    Moisture intrusion and freeze–thaw cycles
•    Surface abrasion and routine cleaning
•    Delamination or layer separation.