The feasibility of implementing a congestion charge on the Halifax Peninsula: filling the 'Missing Link' of implementation
Bibliographic record
Abstract
Congestion charges pose a policy dilemma due to the balance that must be made between the management of a quasi public good along with the correction of negative externalities against the needs of economic, demographic, and urban growth along with citizen acceptance. The literature provides detailed rationales for congestion charges but minimal consideration on how to implement such charges once the decision to proceed has been made. The purpose of this article is to expose some of the technical and administrative issues that come with enacting and implementing congestion charges. The Halifax Peninsula is used as a case study to illuminate the topic. Drawing on this case, we spell out eleven ex ante implementation criteria that can be used to assess implementation considerations in any given congestion charge context. In so doing, we argue that context-specific factors must also be recognized and accommodated by policy and decision makers if congestion charge policy is to present a feasible, and palatable, choice.
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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 | 0.005 | 0.008 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.006 | 0.007 |
| Scholarly communication | 0.006 | 0.002 |
| Open science | 0.002 | 0.003 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.004 | 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".