Experimental Short-Wavelength Surface Textures in Portland Cement Concrete Pavements
Bibliographic record
Abstract
A cooperative research effort was undertaken by FHWA and Canada's Ministry of Transportation for Ontario (MTO) regarding experimental texturing of fresh portland cement concrete pavement. The goal of the research was to develop techniques that can fabricate surface textures having most of the aggressive texture size wavelength content within the 2- to 8-mm (80- to 300-mil) wavelength range, with mean texture depth size at approximately 1 mm (40 mil). This wavelength range is relatively short, and it is difficult to fabricate ultraflat textures with elevation variation only in this wavelength range. The research was initiated by FHWA, and an experimental texture test site was constructed in Ontario, Canada, under the guidance of the MTO. Five texture test sections were constructed and evaluated at the Ontario test site. The short wavelength transverse textures averaging approximately 8-mm (315-mil) spacing are quieter and appear to offer equal or better skid resistance than conventional deeper transverse tining having 16-mm (630-mil) groove spacing.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".