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21.
Under the 1997 Oceans Act, Fisheries and Oceans Canada (DFO) is required to lead and facilitate the development of integrated management plans for Canada's oceans. One of the integrated management projects is the Eastern Scotian Shelf Integrated Management Initiative (ESSIM), through which DFO is working with a range of stakeholders to develop and implement an integrated ocean management plan for the eastern Scotian Shelf. As part of this Initiative, DFO has undertaken a program to develop a set of objectives and related indicators for ocean management. This includes the development of a framework, objectives, and indicators for human use of the resource including the social, economic, and institutional (governance) components of ocean management, areas that have received little attention internationally. This article provides some background to ESSIM and human uses of the resources of the eastern Scotian Shelf; briefly reviews objectives-based management and human use objectives internationally; outlines the process undertaken to develop the Human Use Objectives Framework; presents the resultant objectives and indicators that were developed; and highlights some of the lessons learned and challenges for their implementation. 相似文献
22.
This paper moves beyond traditional models of car ownership in that we propose a framework for modeling household-level decisions
to acquire specific types and numbers of mobility tools to fulfill the mobility needs of household members. The framework
is applied to a data set collected during the winter and spring of 2000/2001 in the German city Karlsruhe via an interactive
web-based stated response survey in which respondents could optimize their household mobility tool sets through on-line feedback
concerning the estimated costs of the sets. In our analysis, bivariate ordered probit models are estimated for three combinations
of mobility tools: season tickets (i.e., transit passes) and cars, season tickets and small cars and season tickets and large
cars. In all instances, strong substitution effects are found – that is, as the number of season tickets increases, the number
of cars decreases. This finding underscores the need to move beyond simple models of car ownership to comprehensive models
of mobility tool ownership. As demonstrated by our research, failure to do so is likely to lead to biased results. 相似文献
23.
Abotalebi Elnaz Ferguson Mark R. Mohamed Moataz Scott Darren M. 《Transportation》2020,47(3):1223-1250
Transportation - This paper reviews the process that led to the development of a national survey instrument used to gather over 20,000 observations across Canada. This survey captured aspects of... 相似文献
24.
水泥混凝土桥面钢筋腐蚀是一普遍且复杂的问题,采用替代钢筋能有效地预防或延缓钢筋腐蚀,而近年应用的MMFX-2钢被认为具有更好的抗锈蚀性能。印第安纳州交通厅对现有的MMFX-2钢的研究成果进行了综合分析,并修建了现场试验桥面以长期评价MMFX钢筋抗腐蚀能力。同普通碳钢相比,MMFX-2钢的屈服强度和抗拉强度更高、抗腐蚀性更好,但没有明显的屈服点。试验桥面铺装的实验结果表明,施工竣工不久至竣工两年期间,MMFX-2钢筋腐蚀很少,混凝土中氯化物含量没有达到钢筋去钝化水平,但在桥面铺装上部氯离子浓度显著增加。笔者建议对于氯化物影响较大场合的混凝土桥面铺装,如果希望提供二次腐蚀保护时,可考虑使用MMFX-2钢。 相似文献
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Wilderness traditionally has been a terrestrial resource designation. This study examined user perceptions related to the existence of wilderness in the Great Barrier Reef Marine Park (GBRMP), and raises questions about the efficacy of the GIS based Australian National Wilderness Inventory (ANWI) as a method of inventorying and analyzing wilderness settings in the absence of such perceptions. Three hundred eighty‐three users of the GBRMP were surveyed. Results indicated that over 80% of the respondents believed that wilderness existed in the park, and that it existed both above and below the surface of the water. Characteristics of wilderness related to human presence, natural features, and remoteness were found to be important to marine wilderness. Responses revealed that remoteness (physical distance) from human development may warrant less weight in the designation of marine wilderness than implied as necessary by the ANWI. We discuss implications for selecting areas as wilderness and using the wilderness designation in marine settings. 相似文献
27.
Abstract People riding transit in the city of Detroit walk on average 0.8 miles (1.3 km) per round trip. The straight-line walking distance was found by buffering the bus stop locations and comparing them to the weighted US Census blocks. However, the true walking path follows the street pattern. Rather than undertaking network analysis, which would require connecting all addresses in the city with all bus stops, a Monte Carlo simulation was performed in geographic information system with random addresses. The simulation was performed over several addresses until convergence was achieved. The distances were converted to walking times and compared to the US National Household Transportation Survey. 相似文献
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Robert Pomeroy John Parks Kathleen Reaugh-Flower Mar Guidote Hugh Govan Scott Atkinson 《Coastal management》2015,43(3):301-328
Combating illegal and destructive resource exploitation in the Coral Triangle is central to ensuring the long-term effective management of fisheries, marine protected areas, and climate change adaptation efforts. This article presents results of an investigation of the perceived level of local compliance and enforcement with marine resource rules and regulations and evaluates the effectiveness or potential for community-supported enforcement efforts in the Coral Triangle region. The findings are consistent with those of the literature on compliance and enforcement that any compliance and enforcement system must not only use deterrence, but also be perceived by fishers as being legitimate, fair, accountable and equitable and the need for developing a personal morality and a social environment that supports compliance. There is an opportunity to strategically build on shared value and cultural norms that can promote collaborative fisheries management as a mechanism to increase compliance through non-coercive efforts. Strengthening the long-term capacity for consistent delivery of local support to marine management and enforcement will increase local compliance rates through time. 相似文献