Waviness Index The Waviness Index, ASTM E 1486, Standard Test Method for Determining Floor Tolerances Using Waviness, Wheel Path and Levelness Criteria, was developed in response to the...
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Waviness Index
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Electronic instruments
These devices were developed to more accurately and easily measure floors according to the F - number system and the waviness index, which are described later in this paper....
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Suggestion by Eldon Tipping
Suggestion by Eldon Tipping As published in Concrete Construction magazine, September 1998, Eldon Tipping made suggestions for a specification for sloped random - traffic floors...
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1.1.16 Alternate measurement tools
Waviness index may be a more appropriate measure to include if floor profilers are used....
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Ytterberg Scientific Inc. FloorPro® Floor Flatness Measurement Device
FloorPro® Gives You Immediate Results, Instant F-Numbers, Waviness Index, and Straight Edge. Immediate flatness results help contractor crews produce flatter floors....
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Allen Face F-Meter® Rolling Floor Profiler
The F-Meter® is the finest floor profiling instrument ever made. Pulled manually across the floor, the F-Meter® can measure up to 2500 linear feet (5,000 point elevation readings!)...
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The Dipstick® Floor Profiler Tool
Advantages The Dipstick Auto-Read Floor Profiler is a totally integrated data collection instrument that provides a fast and accurate method of measuring floors for flatness and...
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8.4 Recommendations
The speech transmission index cannot be less than .84. 3. The signal-to-noise ratio for internally generated noise cannot be less than 18 dB. 4....
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8.1 Objective
Minimally acceptable Speech Transmission Index (STI) level, 3. Minimally acceptable signal-to-noise ratio for internally generated noise, and 4....
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8.2.2 Stimuli
Speech Transmission Index (STI) measurements were made immediately following the recording of each sentence pair at each microphone location....
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8.3 Results and Discussion
8.3 Results and Discussion Figure 24 shows the range of preferred listening levels selected by the listeners who participated in this study. The highest level of 111 dB SPL was...
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EXECUTIVE SUMMARY
Electroacoustic Performance Standards: Recommendations That the speech signal meet or exceed a Speech Transmission Index (STI) of .84, measured at the earphones....
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FIGURE INDEX
FIGURE INDEX Figure 104 Graphic Convention for Figures Figure 302.2 Carpet Pile Height Figure 302.3 Elongated Openings in Floor or Ground Surfaces Figure 303.2 Vertical Change...
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Some existing measurement protocols
Some existing measurement protocols Currently there are no generally accepted measurement protocols for determining the slope, flatness, or waviness of floor surfaces in terms of accessibility...
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7. Computation of Pathway Roughness Index
7.1 This practice computes a PRI from an algorithm developed at the Human Engineering Research Laboratories and described in the TRB paper [5]. 7.2 The distance interval over...
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1.1.8 Alternate measurement tools
Waviness index may be a more appropriate measure to include if floor profilers are used....
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VALUATION THRESHOLD
The baseline valuation threshold of $50,000 is based on the January 1981, “ENR US20 Cities” Average Construction Cost Index (CCI) of 3372.02 as published in Engineering News Record, McGraw...
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Phase II – Textures
divided further into different variations of each pattern (Spots - large bold spots, small random spots, and small evenly spaced spots; Stripes - horizontal stripes, vertical stripes, and wavy...
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3. Terminology
(PRI), n—an index computed from a longitudinal profile measurement using a standard 70 mm (2.5 in.) diameter wheel with no deformation and no affects from speed....
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APPENDIX B
OUTSIDE SURFACES Figure 27: Pictures and Roughness Index of Outside surfaces...
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10. Keywords
10.1 roughness; sidewalk; pathway roughness index; pathway; longitudinal profile; pedestrian....
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Qualitative/ Preference Based Questions
The participants indicated a preference for more complex patterns such as random spots and wavy stripes. These patterns were considered more challenging but far more interesting....
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VALUATION THRESHOLD
The baseline valuation threshold of $50,000 is based on the January 1981, “ENR US20 Cities” Average Construction Cost Index (CCI) of 3372.02 as published in Engineering News Record, McGraw...
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VALUATION THRESHOLD
The baseline valuation threshold of $50,000 is based on the January 1981, “ENR US20 Cities” Average Construction Cost Index (CCI) of 3372.02 as published in Engineering News Record, McGraw...
