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Impacts of High-speed Rail on Airlines and Airport traffic: A Survey of Recent Research

Mon, 10/17/2022 - 19:16
Impacts of High-speed Rail on Airlines and Airport traffic: A Survey of Recent Research
by Zhang,A; Wan,Y; Yang,H.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P66 - INTERNET


A major impact of high-speed rail (HSR) development is on air transportation: it is clear, at least on a first cut, that both modes are competitors for inter-city passengers of a certain distance range. In effect, about 80% of the Chinese domestic airline routes are to be overlapped with HSR lines by 2025. In this paper, we first briefly review impacts of the air-HSR competition on airlines. The focus is on the overall effects of parallel HSR services on passengers’ mode choice as well as on airlines’ flight frequencies, traffic volumes, airfares and market power. While many factors may influence inter-modal competition, our review provides an extensive discussion on the impact of HSR speed that relates to not only travel time (given a fixed distance) but also safety concerns. In addition to the competition aspect, HSR may also complement air transport with air-HSR intermodal services. This, together with the network feature of airline business, would substantially complicate the interaction between HSR and air transport. In effect, in some recent studies air traffic increase was observed on certain routes which questions, for example, the effectiveness of using HSR as a policy device to mitigate airport congestion. The above observation motivates the second, and the key, part of our survey: this part summarizes theoretical and empirical findings on the impacts of HSR on airports.

Observations on Railway Costing in Canada

Mon, 10/17/2022 - 18:52
Observations on Railway Costing in Canada
by Tretheway,M; Andriulaitis,R; Kositsky,J.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P65 - INTERNET


Rail costing, in Canada, emerged as an important issue for government with the 1959-1961 Royal Commission on Transportation (usually referred to as the MacPherson Commission). The Commission’s report recommended, among other things, that Canadian transportation providers that had public service obligations be compensated for the costs of such imposed services. This was a major shift in thought – up until then, governments policy was that carriers should cross-subsidize imposed money-losing services from the profits they made on other services they had been granted a licence to provide.

Operating Ratio as a Measure of Railway Operating Efficiency

Mon, 10/17/2022 - 18:22
Operating Ratio as a Measure of Railway Operating Efficiency
by Gallagher,R; Tougas,FEJ; Stuhldrier,L.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P64 - INTERNET


A railway’s operating ratio represents the ratio of its operating costs to its revenue. Accordingly, a lower operating ratio means a railway is incurring less operating cost per dollar of revenue. CP’s operating ratio has been on a decreasing trend in recent years. CP’s operating ratio for the year ended December 31, 2012 was 83.3% (and its “adjusted operating ratio” for the same period was 77.0%). By the end of 2016, CP had reduced its operating ratio to 58.6%.5 This paper analyzes some of the more significant factors driving that decrease.

Comparing Two Competing Models to Measure Annual Productivity Growth Rates in the Canadian Railway Industry

Mon, 10/17/2022 - 18:10
Comparing Two Competing Models to Measure Annual Productivity Growth Rates in the Canadian Railway Industry
by Andic,H.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P63 - INTERNET


There are many ways to measure productivity, though in recent years, two approaches have dominated the calculation of productivity changes in various situations: the Malmquist and the Luenberger approaches. In this paper we compared those two approaches from both a theoretical and an empirical perspective. Because of data limitations, in our study the Canadian Railway Industry is limited to Canadian Pacific (CP) and Canadian National (CN). Although there are other smaller railways in Canada, these two big companies constitute the major part of the Canadian Railway Industry.

Towards a Systemic Approach to Global Value Chains and Democratic Governance in Halifax

Mon, 10/17/2022 - 15:38
Towards a Systemic Approach to Global Value Chains and Democratic Governance in Halifax
by de Fuentes,C.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P62 - INTERNET


This project addresses three questions. The first is to identify how and how free trade agreements (FTAs) push for a redefinition or revision of relations and interrelationships between different levels of government. Secondly, to see how and why, in doing so, FTAs affect lower or infra-state levels of government, especially cities. These two questions call for a third question: to what extent do these adjustments between instances and levels of government favor, or not, the democratization of political power at the municipal level and the accountability of those who exercise it? One of the initiatives we will be conducting research on is the National Policy Framework on Strategic Gateways and Trade Corridors (CPNPCCS) adopted by the federal government in 2007, revised in 2009. The main aim of this paper addresses the third question of this larger project, and seeks to understand to what extent do the implementation of the National Policy Framework on Strategic Gateways and Trade Corridors (CPNPCCS) has brought adjustments between instances and levels of government for the democratization (or not) of political power at the municipal level and the accountability of those who exercise it. In particular, we aim to identify the effects of the implementation of CPNPCCS in Halifax, and analyze how and why they lead to a redefinition of relations between the three levels of government. A redefinition that passes, among other things, by identifying and analyzing the governance schemes put in place.

Vancouver: Stabilizing the Gateway Infrastructure Coalition

Mon, 10/17/2022 - 15:29
Vancouver: Stabilizing the Gateway Infrastructure Coalition
by Hall,P.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P61 - INTERNET


This short paper reports on the Vancouver case study in an ongoing comparative research project on four Canadian cities (Halifax, Montreal, Toronto and Vancouver). The goal of the research is to highlight how transportation planning and funding are influenced differently by local political, economic and social stakeholders in all four locations in order to better understand how societal debates and related tensions towards transportation projects for commercial purposes differ from one location to another within Canada. Vancouver’s case is distinctive because of the long-standing and activist role of the transport industry in infrastructure advocacy and planning. Although this legacy can be traced all the way back to the role of the Canadian Pacific Railway in the creation of the City of Vancouver, since at least the early 1990s, a coalition based in the Vancouver region has succeeded in securing substantial federal and provincial government support and resources for trade-enabling Gateway infrastructure development. This short paper raises three inter-related questions about this remarkably stable coalition. First, how was the coalition able to exist stably for what is now approaching three decades, despite the ever-present threat of the coalition or regime breaking down internally? Second, what is the relationship between the coalition and the interests it represents, and the actually or potentially competing centres of power in the region, with regards to decision-making and resource-allocation processes? In particular, what is the relationship between the Gateway infrastructure coalition and the municipal governments of greater Vancouver? And third, in what ways have these internal and external coalition dynamics influenced the nature of the infrastructure investments that have been proposed and implemented?

Innovation Corridors and the Golden Horseshoe: Transportation Challenges and the Emergence of a Shared Regional Vision

Mon, 10/17/2022 - 15:16
Innovation Corridors and the Golden Horseshoe: Transportation Challenges and the Emergence of a Shared Regional Vision
by Montsion,JM.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P60 - INTERNET


From the Canadian Global Cities Council to the Canadian Port Authorities and the Canadian Trucking Alliance, including the Association of Canadian Port Authorities (ACPA), the 2017 National Trade and Corridors Fund (NTCF) call for proposals was seen as helpful to fund transportation infrastructure that supports, facilitates, and expands international trade activities through Canada’s freight corridors, especially in the Greater Toronto and Hamilton Area (GTHA) (ACPA 2016a, 2016b; CTA 2018). This paper explores ways in which hard transportation infrastructure needs and challenges have allowed for the development of a shared regional perspective for the golden horseshow region (more broadly defined than the GTHA). Hard gateway and transportation infrastructure challenges shape possibilities for a regional positioning in global value chains, resulting in the emergence of a shared commitment to innovation corridors with key sub-regional differences. After exploring this link, the perspective of various urban stakeholders will be presented. The intent is to shed light on the city-region of Toronto as a gateway in order to understand how sub-regional locations serve as specific hubs, source nodes, sink nodes and saddle nodes, within a regional hierarchical network of actors that benefit from and are directly impacted by an increase in transit and mobility activity (Andersson 2000: 4). By focusing on urban stakeholders such as regional municipalities, sub-regional engagements with this shared regional vision show how they can serve as either building blocks or stumbling blocks to the achievement of the regional vision.

Montreal: Value Chains, Economic Development and Urban Democracy

Mon, 10/17/2022 - 15:05
Montreal: Value Chains, Economic Development and Urban Democracy
by Brunelle,D.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P59 - INTERNET


The present paper pursues a double objective. First, to establish how Montreal’s various governing bodies deal with the commercial policy promoted by both the federal and provincial governments, and more specifically with global value chains (GVC) and their impact on urban development, and second, to understand what roles urban democratic institutions are called upon to play on these issues. To this end, three questions will be addressed in succession: (i) who is responsible for the establishment of the impacts and fallouts of GVC and how are these managed? (ii) what governance schemes or structures are set up to accommodate value chains, to increase or mitigate their fallout? (iii) how are these schemes with their stakeholders and deliverables connected to citizens organizations, and at what levels? In order to address these questions, the paper is divided into three sections. The first section succinctly presents the notions of integrative trade, value chains and governance. The second section describes the entities at both city and city-region’s levels responsible for economic development and provides a summary of their major planning documents. The third section presents the governance schemes and consultations processes set up at each level. The conclusion will offer an exploration into the respective merits of electoral democracy and participatory – or deliberative – democracy as far as urban development and GVC management are concerned.

Including all Users: Measuring Commercial Vehicle Envelopes on Urban Streets

Tue, 10/11/2022 - 19:46
Including all Users: Measuring Commercial Vehicle Envelopes on Urban Streets
by Goodchild,A; McCormack,E; Sheth,M; Hurwitz,D.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P58 - INTERNET


Street observations by the research team suggest that the observed commercial vehicle curb allocation is not aligned with use. Commercial vehicles using designated loading zones are not allocated an envelope, or space adjacent to the vehicle to accommodate loading and unloading activities. When performing loading and unloading activities, drivers are required to walk around the vehicle, extend ramps or handling equipment, and manoeuvre goods; all of these activities require space around the vehicle beyond the dimensions of the vehicle itself. A parallel can be drawn to parking for disabled drivers, where an extra physical buffer is allocated next to a disabled parking space in order to allow a wheelchair to exit from the vehicle. Unlike disabled parking, trucks are typically not allocated this buffer space, and as a result, drivers and couriers partake in high-risk behaviour in response to these infrastructure insufficiencies. Due to these insufficiencies, drivers of commercial vehicles and couriers are observed using and obstructing pedestrian pathways and bicycle infrastructure in order to complete deliveries. These actions create uncertainty and disrupt the predictable flow of traffic. As a result, it puts the driver and other road users in direct conflict and ultimately, in harm’s way. Currently, there are no explicit commercial vehicle load zone (CVLZ) design standards that incorporate the functional design elements a commercial vehicle would need to load and unload safely. The goal of this research project was to understand and provide the minimum operating space required during urban loading/unloading activities around a commercial vehicle through observed and simulated urban deliveries.

Rail service design for mixed passenger and freight transport

Tue, 10/11/2022 - 19:16
Rail service design for mixed passenger and freight transport
by Li,Z; Shalaby,A; Roorda.MJ; Mao,B.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P57 - INTERNET


In this paper, the train service design problem for mixed passenger and freight transport is addressed. Passenger trains have a prescribed timetable that is assumed to be fixed. Freight can be transported by adding dedicated freight trains or using the residual space on passenger trains. Station platforms can be used to load and unload goods and passengers at the same time. An optimization model for the train service design is proposed to maximize the overall profit, which is affected by the freight revenue and cost incurred by the freight service. Efficient timetables of freight trains are determined. A numerical example based on the Union-Pearson Express in Toronto is introduced to demonstrate the proposed methods. The remainder of this paper is organized as follows. Section 2 describes case studies of freight on transit across the world, demonstrating the technical feasibility of this strategy. Section 3 describes the problem and proposes the general framework of the optimization model. Section 4 demonstrates the proposed model with a numerical example. Section 5 presents the summary and conclusions.

Impact of E-commerce Logistics on Neighbourhoods and Communities in Peel Region, Ontario

Tue, 10/11/2022 - 18:59
Impact of E-commerce Logistics on Neighbourhoods and Communities in Peel Region, Ontario
by Mishra,D; Amirjamshidi,G; Hassini,E; Roorda,M.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P56 - INTERNET


This research paper focuses on delivery infrastructure capabilities and their impact on communities in the Peel Region. The objective is to assess the impact of e-commerce logistics on urban, suburban and rural communities within the region, as the demand for home deliveries keeps rising. In particular, the paper considers the following key questions: how the two delivery services, APSs and CDPs, enhance residents’ satisfaction in terms of ease of delivery and product return?; what is the impact of these deliveries on traffic flow and land-use planning?; and what are the potential local economic, environmental, and social impacts of increase e-commerce deliveries?

A Prospectus for Improved Long-Distance Travel Demand Models

Tue, 10/11/2022 - 18:35
A Prospectus for Improved Long-Distance Travel Demand Models
by Miller,EJ.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P55 - INTERNET


Over the past 35+ years the author has reviewed the state of art/practice in intercity travel demand modelling approximately once a decade (Rice, et al., 1981; Miller, 1990, 1992, 2004). The findings of these reviews have been depressingly similar: very little progress in modelling methods has occurred over this very long time period, despite considerable advances in intra-urban modelling during this time, and despite continuing interest throughout North America in possible high-speed rail implementations and other major intercity transportation policy issues. Indeed, the 2004 paper (“The Trouble with Intercity Travel Demand Models”) could be reissued today without needing to make major modifications to its critique of the field. Rather than provide yet another detailed critique of current practice, this paper represents a “fresh start” towards developing significantly improved long-distance travel demand models to support policy analysis in Canada and elsewhere. This “fresh start” is predicted on the observation that very significant progress in data, modelling methods and computing technology has occurred, particularly over the past 10+ years, which collectively provide the potential to support significant advances in the field, if public and/or private sector agencies wish to do so. The paper develops its argument in three parts. First, the travel market – long-distance travel – that is to be modelled is explicitly defined. Second, a number of key characteristics of the long-distance travel market that pose significant modelling challenges are enumerated and briefly discussed. Third, a few key propositions are advanced that, it is argued, provide an appropriate starting point for the design of advanced, practical, policy-relevant models of long-distance travel demand.

Assessing the Representativeness of Survey Respondents for Micro-Level Network Resilience Modeling

Tue, 10/11/2022 - 18:12
Assessing the Representativeness of Survey Respondents for Micro-Level Network Resilience Modeling
by Madar,G; Maoh,H.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P54 - INTERNET


Traditional modeling exercises in network robustness and related areas have primarily been done using aggregate data. Recent thinking suggests that a micro-level approach, using individual establishments as the unit of analysis, can improve the accuracy of models for characterizing existing conditions on the network. As the freight flows originate and terminate with individual firms, such an approach would allow for a more accurate depiction of freight flows in a regional context. However, the data requirements are more intensive than aggregate methods due to the need to collect detailed information about shippers. Even when such data is collected, the representativeness of the collected records must be examined to avoid any potential bias when performing statistical analysis. To this end, this study examines a dataset consisting of survey responses from Canadian business establishments that is considered for application in a micro-level modeling exercise. The survey collected data from over one thousand Canadian firms, including information about the respondent establishments’ characteristics, such as industry classification and employment size, and their shipping activities, such as goods classifications and origin and destination locations. For this data to be applied to a modeling exercise with any accuracy, it must be ensured to be representative of the entire population of Canadian shippers. The aim of the current paper is to determine the reliability of this dataset through exploring its representativeness. This will be done by analyzing the distribution of responses within the survey records, as well as comparisons with Canadian national averages for industry classifications, establishment locations, and other characteristics.

Developing a Comprehensive Database of Alternative Fuel Station Locations across Canada and the United States of America

Tue, 10/11/2022 - 18:02
Developing a Comprehensive Database of Alternative Fuel Station Locations across Canada and the United States of America
by Levene,J; Lommele,S; Eger,R; Dafoe,W.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P53 - INTERNET


In 1991, the National Renewable Energy Laboratory (NREL) began collecting data for the United States Department of Energy (USDOE)Alternative Fuels Data Center (AFDC). Over time, the keystone dataset for the AFDC became the alternative fuels station data. Because of the long-term support of the USDOE, the locations of biodiesel, compressed natural gas (CNG), electric, ethanol, hydrogen, liquified natural gas (LNG), and propane stations have been available across the United States of America for decades. Then in 2017, NREL partnered with National Resources Canada (NRCan) to expand the dataset to include the location of those same alternative fuel stations across Canada as the Electric Charging and Alternative Fuelling Stations Locator or Localisateur de stations de recharge et de stations de ravitaillement en carburants de remplacement. On both countries’ websites, users can view, get driving directions for, and conduct searches on alternative fuel stations based on specific criteria, providing the opportunity for drivers to consider a variety of fuels to enable their intra and international driving.

Data Supply Chain for Arnold and Beyond

Tue, 10/11/2022 - 17:51
Data Supply Chain for Arnold and Beyond
by Meyer,J.
2019.
Canadian Transportation Research Forum 54th Annual Conference - Change, Disruption and Innovation in Canadian Transportation: Navigating the New Normal//Changements, perturbations et innovations dans les transports au Canada :Sur la voie de la nouvelle normalité - Vancouver, BC, May 26-29, 2019.
CA6 AIP_10 2019P52 - INTERNET


There has been much deliberation over the past few years about establishing and developing a supply chain for roadway data. Specifically the data need for building a comprehensive Linear Referencing System (LRS, a.k.a. All Roads Network of Linear Referenced Data: ARNOLD) and an address range roadway segments to meet the multitudes of business requirements, known and unforeseen. This paper will talk about the background and history of Arizona’s LRS, important key concepts that need to be recognized, where commitments to work together need to be agreed to and supported in order to effectively support data supply chains and multi/intra organizational needs.

Prise de décision axée sur la performance pour la gestion des actifs : Enseignements tirés et Boite à outils du praticien

Wed, 07/13/2022 - 18:48
Prise de décision axée sur la performance pour la gestion des actifs : Enseignements tirés et Boite à outils du praticien
by Montufar,J; Regehr,J; Chapman,S; Haas,R.
2022.
CA6 ARH131 2021P21Z - MAIN


Les gouvernements – y compris les agences de transport – adoptent de plus en plus des approches axées sur la performance pour la gestion et pour la prise de décision, et ce, afin de contribuer à l’atteinte des résultats escomptés et de favoriser la responsabilité financière, la responsabilisation et la transparence de la gouvernance. Les ressources financières étant plus limitées et les gouvernements recherchant le meilleur rapport qualité-prix, les agences de transport sont de plus en plus tenues d’effectuer des investissements à l’aide de méthodes de compromis entre les actifs et de méthodes d’optimisation dans le but d’accroître la transparence et la crédibilité au moyen d’une approche axée sur la performance pour la prise de décision. Malgré les progrès récents, il y a encore beaucoup à apprendre sur la prise de décision axée sur la performance et sur les meilleures techniques pour en assurer le succès. Bon nombre d’agences de transport sont à la recherche d’exemples et d’outils pratiques qu’elles pourraient utiliser pour faire progresser leurs pratiques de gestion des actifs, pour accroître la transparence de la prise de décision et pour optimiser les investissements dans le réseau. Le présent rapport contribue à pallier à ce manque de connaissances en faisant le bilan des enseignements tirés quant à la prise de décision axée sur la performance et en développant une boîte à outils susceptible d’aider les praticiens à identifier les outils à mettre en oeuvre pour les différents besoins à satisfaire dans le cadre du processus de gestion des actifs.

Performance-Based Decision Making for Asset Management: Lessons Learned and Practitioner Toolkit

Wed, 07/13/2022 - 18:35
Performance-Based Decision Making for Asset Management: Lessons Learned and Practitioner Toolkit
by Montufar,J; Regehr,J; Chapman,S; Haas,R.
20xx.
CA6 ARH131 2021P21 - MAIN


Governments, including transportation agencies, are increasingly adopting performance-based approaches to management and decision making to help achieve desired outcomes, and to encourage fiscal responsibility, accountability and transparency in governance. As financial resources become more limited and governments focus on obtaining value for money, transportation agencies are increasingly required to make investments using cross-asset trade-offs and optimization methods to improve transparency and credibility using a performance-based approach to decision making. Despite recent progress, there is still much to learn about performance-based decision making and the best techniques to ensure success. Many public transportation agencies seek practical examples and tools that could be deployed to advance their asset management practices, improve the transparency of decision making, and optimize network investments. This report helps close that knowledge gap by synthesizing lessons learned with respect to performance-based decision making, and by developing a toolkit that can help practitioners identify tools to implement for different needs within the asset management process.

Geometric Design Guide for Canadian Roads: Chapter 11 - Special Roads

Wed, 06/01/2022 - 18:40
Geometric Design Guide for Canadian Roads: Chapter 11 - Special Roads
by Buch,H.
2020.
CA6 ARH_84 2017G22 Ch.11 - REF


The Geometric Design Guide for Canadian Roads contains the current design and human factors research and practices for roadway geometric design. It replaces the 1999 edition of the Guide and subsequent revisions. The Guide provides guidance to planners and designers in developing design solutions that meet the needs of a range of users while addressing the context of local conditions and environments. The Guide is organized into chapters to cover the entire design process from design philosophy and roadway classification to design parameters and specific guidelines for the safe accommodation of vehicles, cyclists and pedestrians on linear road elements and at intersections. Chapter 11-Special Roads provides design guidance for special roads such as low-volume rural roads, resource roads, recreational roads, and winter roads. A summary of road surface characteristics and their impact on alignments and vehicles is included for reference. The chapter includes discussion on two-lane two-way roads, one-lane two-way roads, and one-lane one-way roads, and is to be used in conjunction with other chapters in this guide. Guidance for roadside safety for low-volume roads is included.

Guide canadien de conception géométrique des routes - Chapitre 11 - Routes spéciales

Wed, 06/01/2022 - 18:21
Guide canadien de conception géométrique des routes - Chapitre 11 - Routes spéciales
by Buch,H.
2020.
CA6 ARH_84 2017G22 Ch.11Z - REF


Le Guide canadien de conception géométrique des routes fait état de la recherche et des pratiques actuelles en matière de conception et de facteurs humains aux fins de la conception géométrique des routes. Il remplace l’édition de 1999 et les mises à jour subséquentes. Le Guide offre une orientation aux planificateurs et aux concepteurs pour le développement de solutions de conception qui répondent aux besoins d’une variété d’usagers tout en abordant la question des conditions et des environnements locaux. Le Guide est réparti en chapitres afin de couvrir le processus complet de conception depuis la philosophie de conception à la classification des routes, les paramètres de conception, et les lignes directrices spécifiques pour l’aménagement sécuritaire des véhicules, des cyclistes et des piétons sur les éléments linéaires de la route et aux carrefours. Le Chapitre 11 – Routes spéciales offre des conseils sur la conception des routes spéciales, telles que les routes rurales à faible débit de circulation, les routes d’accès aux ressources, les routes récréatives et les routes d’hiver. Un résumé des caractéristiques de surface de ces routes et de leurs répercussions sur les tracés et sur les véhicules est inclus à titre de référence. Ce chapitre comprend de l’information sur les routes à deux voies à double sens, sur les routes à une voie à double sens et sur les routes à une voie à sens unique, et doit être utilisé conjointement avec les autres chapitres du présent Guide. Des conseils sur la sécurité des abords de routes à faible débit de circulation y figurent également

Guide d’évaluation des produits de stabilisation du sol et des matériaux

Fri, 05/27/2022 - 18:22
Guide d’évaluation des produits de stabilisation du sol et des matériaux
by Duclos,A; Hernandez,JH; Ganesh,S.
2022.
CA6 ARH_62 2022E87Z - MAIN


Le présent Guide a pour but d’aider les agences à évaluer les produits de stabilisation du sol et des matériaux vendus par les fournisseurs. Il identifie également les produits et les processus de stabilisation du sol utilisés à l’échelle du pays et dans le monde et donne un aperçu de leurs applications et de leur performance optimales lorsque des données sont disponibles. Selon le Guide, la stabilisation du sol comprend à la fois les activités de modification et les activités de stabilisation du sol et des matériaux. La modification du sol tient compte de l’amélioration des sols durant ou juste après un mélange pour en améliorer les propriétés techniques, telles que la plasticité et la sensibilité à l’humidité, et pour faciliter ou pour accélérer les travaux de construction. La stabilisation du sol, quant à elle, tient compte du traitement chimique et/ou mécanique d’une masse de sol dans le but d’en améliorer la résistance au cisaillement et la durabilité en vue de son intégration dans une structure de chaussée. Le présent Guide met l’accent sur la stabilisation des structures de chaussée pour les routes, y compris les couches de forme, les couches de granulats et la valorisation intégrale des chaussées en enrobé, avec enduit superficiel et à revêtement granulaire. Le projet inclut un analyse documentaire rigoureuse sur les produits et sur les processus applicables au pays et dans le monde. Un sondage détaillé a également été préparé et distribué aux agences, aux consultants et aux entrepreneurs dans le but de recueillir de l’information sur les pratiques de stabilisation et sur les procédures d’évaluation des produits actuelles, utilisées au Canada et à l’étranger. Les fournisseurs de produits de stabilisation ont également répondu à un sondage visant à développer une base de données sur les produits de stabilisation actuels et sur leur utilisation et sur leur performance.

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