From freeway to feeway: congestion pricing policies for B.C.'s Fraser River crossings
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Greater Vancouver’s Fraser River crossings face sizeable traffic demand that results in heavy congestion. This study develops and assesses road pricing policy alternatives that would reduce the economic externalities of congestion on these crossings. Based on current traffic flows, target traffic flows and assumed price elasticities of demand, a simple model is assembled that estimates requisite congestion charge levels by time of day. Case studies of London, Toronto and Orange County (California) provide insights on the effectiveness of different road pricing schemes and highlight the critical factors to be considered when developing a pricing scheme. Pricing policy alternatives that reflect the uniqueness of Greater Vancouver transportation are then built using the estimated required charges and data from the case studies. These alternatives are assessed against a multi-criteria framework. The study recommends a new congestion pricing policy for the George Massey Tunnel, and the Alex Fraser, Pattullo and Port Mann bridges.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 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