Reliability of Signalized Intersections: A Stochastic Concept of Capacity
Why this work is in the frame
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Bibliographic record
Abstract
Through numerous field observations at 5 signalized intersections in the center of Shanghai City, this paper studied the reliability of signalized intersection capacity. The volatility of the intersections’ headway was described firstly. And then, 1500 signal circles data of the saturation headway of left-turn lane at 5 intersections were collected by camera, and some descriptive statistics parameters of the saturation headway were investigated. Since the multiplicative inverse of saturation headway is the saturation flow rate, so the saturation flow rate data can be easily got. We found that the capacity of signalized intersection capacity yielded to normal distribution and it could be explained by a famous low of the probability theory. Then an analogy was made between the reliability of structural capacity and signalized intersection capacity, the reliability function of signalized intersection capacity was defined. Thus, the capacity and its reliability can be understood from a viewpoint of probability. The research develops detailed models to describe the signalized intersection capacity and proposed a better understanding.
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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 | 0.000 | 0.000 |
| 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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it