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Record W582788175

Demographic and Spatial Dynamics: Impact on Transportation and Future Issues

2007· article· en· W582788175 on OpenAlexaboutno aff
P Desgagne

Bibliographic record

Venue23RD PIARC WORLD ROAD CONGRESS PARIS, 17-21 SEPTEMBER 2007 · 2007
Typearticle
Languageen
FieldSocial Sciences
TopicUrban Transport and Accessibility
Canadian institutionsnot available
Fundersnot available
KeywordsBaby boomPopulationDemographicsScope (computer science)Demographic changeBoomBirth rateDemographic economicsGeographyBaby boomersSettlement (finance)Population growthOrder (exchange)DemographyEconomicsFertilitySociologyEngineering
DOInot available

Abstract

fetched live from OpenAlex

After a brief overview of the main spatial and historical trends in the settlement of Quebec, this report discusses the connections between the dynamics of urban and interregional demographics. The post-war baby boom is then examined from the perspective of the scope of the fluctuations in the birth rate and the number of births before and after the baby boom, in order to clearly explain the medium- and longer-term impacts of this phenomenon on the age structure of Qubec's population and the trends that affect it. These trends and their impact on the demand for transport are then scrutinized by cross-analyzing demographic statistics and data pertaining to driver's license holders, broken down according to gender and age group. By demonstrating that the cohorts of baby-boomers reaching adulthood have swelled the number of potential drivers, this analysis sheds light on a major contributing factor to the very sharp increase in traffic that has been seen in recent years, despite the fact that demographic growth has tapered off significantly. Looking into the future, the aging of these cohorts of baby-boomers will continue to be the predominant demographic phenomenon, and the available forecasts lead to the conclusion that the population trend of concentration in the southwest of the province will likely persist. The report concludes with the determination that this concentration is not likely to produce any tangible benefits in terms of transportation demand from the aging population, because the regions where the traffic load is heaviest should continue to grow, and should be the least affected by the aging. For the covering abstract see ITRD E139491.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.344
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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.

Opus teacher head0.009
GPT teacher head0.307
Teacher spread0.298 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2007
Admission routes1
Has abstractyes

Explore more

Same venue23RD PIARC WORLD ROAD CONGRESS PARIS, 17-21 SEPTEMBER 2007Same topicUrban Transport and AccessibilityFrench-language works237,207