Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO PS:2014
• Năm ban hành / Publication date: 2014
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: AASHTO Provisional Standards
• Thay thế cho / Replace: AASHTO PS:2013
• Số trang / Page: 882

Phạm vi áp dụng / Scope of standard

Detectable warnings provide a distinctive surface of truncated
domes detectable by cane or underfoot to alert people with vision
impairments of the transition to vehicular ways. These warnings
compensate for the sloped surfaces of curb ramps that remove a
tactile cue provided by curb faces.

It is not the intent of this specification to relieve the
supplier from the final responsibility to provide an appropriate
product for the intended function, nor is it intended to specify
all the design details. The objective is to provide a sufficiently
detailed specification such that the function establishes a
standard geometry of the detectable warning surface.