LE CARREFOUR GIRATOIRE: UN MODE DE GESTION DIFFERENT/The Roundabout: A Different Mode of Management
Bibliographic record
Abstract
Le reseau routier quebecois s'est developpe principalement pendant les annees 60 et 70. Ce reseau est maintenant a maturite. L'augmentation incessante des deplacements et du nombre de vehicules sur les autoroutes et les routes du Quebec a entraine la saturation d'une certaine partie du reseau routier, ce qui a pour consequence de rendre le trafic moins fluide et d'augmenter les retards a certaines intersections et certains echangeurs. Dans le domaine de la gestion du trafic routier le concept de carrefour giratoire, comme solution a ce type de probleme, dans une version plus moderne que l'on peut adapter au milieu. Base sur l'experience de plusieurs administrations routieres et sur un bon nombre d'etudes exhaustives, un guide, intitule Le carrefour giratoire : un mode de gestion different, a ete publie en 2002 par le ministere des Transports du Quebec. Ce guide rassemble tous les renseignements necessaires pour la conception d'un carrefour giratoire. A partir des elements de ce guide, une methode de conception, en dix etapes, a ete elaboree afin d'uniformiser l'etude et la preparation des projets ainsi que l'amenagement des carrefours giratoires sur le territoire quebecois. Ces etapes traitent successivement du choix des principaux criteres de conception, de la determination des elements physiques, de la localisation et de la dimension du carrefour, de la conception des ilots separateurs, de l'evaluation du passage et de la vitesse des vehicules, des distances de visibilite, de l'etude de la capacite et du degre de saturation, du marquage, de la signalisation et de l'eclairage au besoin. ABSTRACT IN ENGLISH: The Quebec road system was primarily developed in the 60s and 70s. This system has now reached maturity. The constant increase in trips and the number of vehicles on Quebec roads and highways has led to saturation of part of the road system, reducing traffic flow and increasing delays at certain intersections and interchanges. In the road traffic management field, the roundabout concept has resurfaced as a solution to this type of problem, in a more modern version that can be adapted to the setting. Based on the experience of several road administrations and numerous exhaustive studies, a guide entitled Le carrefour giratoire: un mode de gestion different, was published in 2002 by the Ministere des Transports du Quebec. This guide brings together all the necessary information for designing a roundabout. Based on the elements of this guide, a ten-stage design method has been produced to standardize the study of projects and the preparation and development of roundabouts in Quebec. These stages successively cover the selection of the main design criteria, the determination of the physical features, the location and dimensions of the roundabout, the design of the splitter islands, the estimation of vehicle transit and speed, sight distances, the capacity and saturation study, road markings, traffic control devices, and lighting as needed.
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 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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.005 | 0.005 |
| Scholarly communication | 0.008 | 0.003 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.019 | 0.003 |
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".