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Enregistrement W7030458892

Northern New England Intercity Rail Initiative : Boston, Springfield, New Haven, Montreal : alternative analysis report

2016· book· en· W7030458892 sur OpenAlexaboutno aff

Notice bibliographique

RevueState Library's electronic repository (State Library of Massachusetts) · 2016
Typebook
Langueen
DomaineBusiness, Management and Accounting
ThématiqueTransportation Systems and Infrastructure
Établissements canadiensnon disponible
Organismes subventionnairesnon disponible
Mots-clésService (business)New englandProcess (computing)Range (aeronautics)Level of servicePassenger transportTransportation planning
DOInon disponible

Résumé

récupéré en direct d'OpenAlex

The Northern New England Intercity Rail Initiative (NNEIRI) examines the implementation and operation of more frequent and higher speed intercity passenger rail service along the NNEIRI Corridor.The Corridor is made up of two overlapping routes, one that connects the cities of Boston, Massachusetts and New Haven, Connecticut via Springfield, Massachusetts, and one that connects the cities of Boston, Massachusetts and Montreal, Quebec via Springfield, Massachusetts.This Alternatives Analysis Report presents the process and data used to develop three Build Alternatives and a single No Build Alternative.At the beginning of the process, 18 rail service options were developed with ranges of speed, frequency, and equipment.These options were analyzed to assess impacts on ridership and train performance.Documentation of the initial option screening is included the Preliminary Service Options and Performance chapter.Data from the analysis was then used to determine the three Build Alternatives and one No Build Alternative that would be further analyzed in the Alternatives Analysis process.The Build Alternatives include potential service, speed and equipment improvements that will provide a range of preliminary costs, ridership, and travel times between Corridor locations.The No-Build Alternative was developed based on data from existing and proposed projects that are expected to be in service regardless of NNEIRI implementation.The four alternatives include:No Build Alternative: Assumes no NNEIRI service on the Corridor.This Alternative is the base case against which each of the Build Alternatives are measured.This Alternative includes existing and anticipated transportation improvements in the NNEIRI Corridor area, including improved New Haven-Hartford-Springfield rail service, Springfield Union Station improvements, Boston South Station expansion, extension of the Amtrak Vermonter to Montreal, and improvements to the Montreal-area rail network.Alternative 1 -Corridor Service: Improved speeds up to 60 mph, where operations are currently slower, and new passenger service providing six daily departures from Boston, three from Montreal, and 5 from New Haven.Initial capital cost, including infrastructure upgrades and equipment purchases is expected to be $615-785 million.Ridership on Alternative 1 is expected to be 597,000 passengers annually and the service is expected to require $24million in operating funding.Alternative 2 -Corridor Service with Speed Improvements: Improved speeds up to 79 mph, where operations are currently slower, and new passenger service providing 11 daily departures from Boston, 5 departures from Montreal, and 11 from New Haven.Initial capital costs are expected to be $1.062-1.350billion.Ridership is expected to be 1,052,500 annually and the service is expected to need $76 million in annual operating funding.Alternative 3 -Corridor Service with Speed and Equipment Improvements: Improved speeds up to 90 mph, where operations are currently slower, utilization of tilting train equipment, and new passenger service providing 16 daily departures from Boston, 5 from Montreal, and 11 from New Haven.Alternative 3 is notable for the inclusion of 5 additional shuttle trains between Boston and Springfield to provide increase connectivity between city pairs in the Boston to Springfield segment.Capital costs in Alternative 3 are expected to cost $1.255i Executive Summary 1.590 billion.Ridership is expected to be 1,170,700 annual riders and $88 million in operating funding will be required each year.Additionally, an environmental analysis for all three Build Alternatives was completed and compared with the No Build Alternative.The screening analyzed major environmental issues, including natural resources, human environment, land use, construction impacts, and historical implications.The analysis found that impacts along the Corridor are anticipated to be generally minor and moderate with some increased in impacts in specific locations due to operations and infrastructure needs, however no impacts are anticipated to be significant.The three Build Alternatives provide significantly different levels of cost, ridership, and required operating funding on the Corridor.Subsequent to the Alternative Analysis Report, a Recommend Alternative will be developed.The Recommend Alternative will be either one of the Build Alternatives or a compilation of the portions of the three alternatives that are most feasible and beneficial and will be determined based on public input, stakeholder input, and final determination of the project management team.

Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.

Comment cette classification a été obtenuedéplier

Prédiction machine sur la base complète

Imitation des enseignants

Ni prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.

score de la tête « metaresearch » (Codex)0,003
score de la tête « metaresearch » (Gemma)0,004
Version: metacan-v3-hybrid-931329e0061cStatut de validation: machine_predicted_unvalidated
Catégories candidatesaucune
Catégories consensuellesaucune
DomaineSignal candidat: aucune · Signal consensuel: aucune
Devis d'étudeSignal candidat: Sans objet · Signal consensuel: Sans objet
GenreSignal candidat: Autre · Signal consensuel: Autre
Score de désaccord entre enseignants0,311
Score d'incertitude au seuil0,626

Scores du classifieur distillé par catégorie (deux têtes)

CatégorieCodexGemma
Métarecherche0,0030,004
Méta-épidémiologie (sens strict)0,0010,000
Méta-épidémiologie (sens large)0,0000,000
Bibliométrie0,0030,007
Études des sciences et des technologies0,0010,001
Communication savante0,0040,002
Science ouverte0,0010,001
Intégrité de la recherche0,0010,001
Charge utile insuffisante (le modèle a refusé de juger)0,0870,011

Scores machine (provisoires)

Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.

Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.

Tête enseignante Opus0,007
Tête enseignante GPT0,192
Écart entre enseignants0,185 · la distance entre les deux têtes enseignantes sur ce seul travail
Statut de validationscore_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle

Classification

machine, non validée

Prédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.

Les modèles n’ont appliqué aucune catégorie : rien dans la taxonomie ne correspondait à ce travail.
Devis d'étudeSans objet
Domainenon disponible
GenreAutre

Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».

En bref

Citations0
Publié2016
Routes d'admission1
Résumé présentoui

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