Australian Application of International Developments in Stone Mastic Asphalt (SMA)
Bibliographic record
Abstract
This paper describes how stone mastic asphalt (SMA) came to Australia from Europe in the early 1990s, around the same time that it was introduced to the USA and Canada, because of its’ combined good surface texture and low-noise characteristics with rut resistance and durability. While SMA and its variations now dominate asphalt surfacing types used in Europe and the United Kingdom as well as being used extensively in other parts of the world, asphalt surfacing types developed for cool European climates and heavily bound pavement types do not necessarily translate directly into warm climates or readily adapt to use as thin surfacings on flexible granular pavements. SMA projects have now been in service in Australia for periods of up to ten years. Experience has been mostly positive, however, some problems have been encountered and the additional manufacturing and placement requirements of SMA compared to dense graded asphalt have resulted in extensive research and development with inputs from German and US experts. This paper provides an update on the development of local guidelines and specifications and some of the learning experiences in adapting the SMA concepts to the Australian operating environment.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".