Development of Inherent and Dynamic Resilience in Traffic Networks: Microscopic Simulation, Dynamic Stochastic Assignment and Bayesian Decision Models
Bibliographic record
Abstract
This research addresses knowledge gaps in resilience of a traffic network for resisting loss of ability to serve its function during severe disruptive events.It is aimed at the identification of measures and the development of methods for the investigation of how to enhance inherent (static) and dynamic resilience.The need for inherent and dynamic resilience arises in order to cope with highly disruptive events with potential for major impacts on key arterials and corridors.Specifically, the objectives of this thesis are (1) to define and test link/corridor-level means to enhance the inherent resilience in terms of sustained ability to serve traffic while resisting deterioration of quality of flow, (2) to develop and assess dynamic resilience measures that address dynamic and stochastic characteristics of traffic affected by a major disruptive event, and (3) to define decision-making guides for managing traffic under disruptive conditions.This original research covers the traffic service resilience, but it does not include the physical resilience of transportation infrastructure owed to structural design to withstand earthquakes and road condition deterioration.As for the spatial scope, the studies of inherent resilience are meaningful at the link and corridor level.On the other hand, to define and assess dynamic resilience measures, corridor and network level studies are essential.Based on microscopic level simulations, predictive models of link performance are developed and applied for the quantification of resilience improvement.Dynamic traffic assignment methods are developed at the macroscopic level due to the necessity to study dynamic resilience measures at the network level.Due to the uncertainties in iii traffic flow during highly disruptive events, Bayesian decision analysis method for assessing dynamic resilience actions is researched.The dynamic resilience actions encompass combinations of user-equilibrium and stochastic assignment methods.These methodological developments lead to defining linkages of dynamic resilience measures with traffic control.Finally, products of new and original research reported can potentially serve as means to reduce impacts of major stochastic events.Both inherent (i.e.static) resilience and the dynamic resilience are needed to counter the impacts of highly disruptive events. of my family, my mother
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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 | 0.002 | 0.010 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| 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".