Notice bibliographique
Résumé
Roundabouts are used for traffic calming, have cheaper lifetime costs, and are environmentally friendly. For Persons with Vision Loss (PWVL), roundabouts are challenging when crossing streets due to lack of signalization and difficulties in differentiating sound cues. The objectives of this research were to investigate roundabout accessibility issues confronting PWVL and to evaluate a safe crossing solution. To achieve these objectives, a national workshop with the Canadian National Institute for the Blind (CNIB) clients, and a survey with volunteers were conducted to determine accessibility issues. For evaluation of the crossing solution, steps included using a 3D model of a roundabout, developing sound strips, testing them on a parking lot, installing and utilizing them at the roundabout, and conducting a post-experiment survey. CNIB staff facilitated local meetings, the national workshop and assistance with volunteers during field tests. Field studies were conducted with six volunteers during one day before sound strips were installed and one day after. Data collected at the roundabout included vehicle speed, vehicle yield for pedestrians, delay felt by pedestrians, and pedestrians' opinions. Results showed that sound strips provided PWVL with warnings of upcoming vehicles. Data analysis showed 57% of vehicles yielding to pedestrians before installation and 41% after. Also, the average delay experienced by pedestrians decreased from 41.39 seconds to 38.34 seconds. In reference to speed, a few vehicles traveling through the intersection exceeded the 40KPH posted speed prior and after installation of the strips, highlighting the need for continued safety measures. Furthermore, it was determined that using a 3D model was helpful in discussing accessibility issues with volunteers. These findings provide meaningful information about concerns and issues faced by PWVL at roundabouts, suggesting that treatment using sound strips is beneficial for this vulnerable group when navigating these locations. Overall, this research provides valuable insights into roundabout accessibility issues and offers a potential solution to improve safety and mobility for PWVL. A statistical analysis revealed changes in vehicle speeds across four approaches, with highly significant reductions (p < 0.001) observed before treatment on Approaches 1, 2, and 4. However, results after treatment were mixed, with marginal significance (p = 0.072 and p = 0.084) on Approaches 2 and 4. Due to the small sample size, findings should be interpreted with caution, and further research is needed to draw definitive conclusions.
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 distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
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 tête enseignante, 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 ».