Feasibility of scheduled helicopter service in the Vancouver area
Notice bibliographique
Résumé
The objective of this thesis is to determine whether a scheduled helicopter service is feasible in the Vancouver area. The helicopter can provide the major advantage of transportation directly to the center of any area, be it downtown or an airport terminal building, at speeds in excess of those attainable by most surface modes of travel. This potential for time savings makes a helicopter service commonly desirable. However, cost and revenue considerations are critical to the implementation of a helicopter service. Cost and revenue estimates have been proposed, developed and tested for applicability in the Vancouver area. Consideration of cost and revenue data allowed conclusions regarding commercial feasibility. Study of benefits and costs external to the helicopter operation itself then permitted examination of the economic feasibility of a scheduled helicopter service in the Vancouver area. The subject of this thesis is recognized as being both broad and complex. This study is but a brief investigation of the subject and only some of the major forces have been considered. In fact, any one major section of this thesis could warrant a significantly large study in itself. It was deemed worthwhile to embark on the entire study while recognizing that only the major factors could be considered as the value of the entire project would almost certainly be of greater value than any one of the parts. Restricting the thesis to the study of either costs, revenues or benefits would not allow conclusions regarding commercial or economic feasibility. Conclusions to the broader problem were deemed desirable. The annual operating cost for a fleet of three S-61-N helicopters has been estimated at $3.2 million. The forecast revenues for a route serving Victoria, Vancouver Airport, Vancouver downtown, Comox, Powell River and Campbell River are $1.48 million, $1.58 million and $1.69 million for 1968, 1969 and 1970 respectively. Resulting losses which exclude any capital cost allowance are $1.72 million in 1968, $1.62 million in 1969 and $1.51 million in 1970. A sensitivity analysis indicates that even if revenues were doubled (a highly unlikely possibility) from twice the forecast number of passengers with fares constant or visa versa, service would still incur a $0.24 million loss in 1968. A study of the indirect benefits that could accrue from this hypothetical service indicates little justification for government subsidization. Airline financial assistance, particularly for the significant amount required does not appear warranted. Lack of forecast commercial feasibility and insufficient justification for government subsidization or airline assistance to compensate for the difference leads to the conclusion that a scheduled helicopter service in the Vancouver area is not feasible although it is operationally possible.
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 enseignantsNi 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.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,006 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,003 | 0,001 |
| Communication savante | 0,004 | 0,001 |
| Science ouverte | 0,001 | 0,001 |
| Intégrité de la recherche | 0,001 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,011 | 0,001 |
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.
score_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 découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».