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1.
This paper examines the potential of hybrid schemes of speed limit and road pricing for decentralizing Pareto-efficient flow/speed patterns that minimize total travel time and total emissions simultaneously. Both link flows and speeds are treated as independent variables in our bi-objective formulation. The resulting Pareto frontier is thus weakly dominant to that in previous literature. For any such favorable Pareto-efficient flow and speed pattern, we establish the existence of hybrid schemes of speed limits and non-negative/revenue-neutral tolls, whose set of user equilibrium (UE) solutions contains the Pareto-efficient one, and provide sufficient conditions under which the Pareto-efficient solution can be certainly obtained. 相似文献
2.
Ridership of suburban railway services in Spain has experienced a 30% increase during the 1990s. This paper carries out the estimation of an aggregate demand function using panel data from eleven urban areas. Among other results, short- and long-run elasticities with respect to both prices and a quality measure are obtained. These results are used to discuss the policy alternatives that RENFE faces in order to increase its revenue in the future. 相似文献
3.
Carolyn McAndrews Kirsten Beyer Clare Guse Peter Layde 《International Journal of Sustainable Transportation》2017,11(3):197-205
In both developing and advanced economies, it is commonly believed that lower income and minority populations are disproportionately at risk of being injured or killed in a motor vehicle crash, especially as pedestrians. However, this risk is rarely quantified with information about exposure. We argue that a combined transportation–population health framework is one way to quantify, and therefore prioritize, equity considerations in transportation safety decision-making. We illustrate this approach with an analysis that compares age-adjusted fatal and nonfatal injury rates per 100 million person-trips by race/ethnicity and sex for motor vehicle occupants, bicyclists, and pedestrians. We found that, per trip, whites are equally safe as pedestrians and motor vehicle occupants, whereas other racial and ethnic groups for whom we have data are less safe when they walk. In addition, black/African-American female motor vehicle occupants and pedestrians have higher inpatient injury risk than female travelers of other races and ethnicities (for whom we had sufficient data). Such differences in transportation injury risk by race and ethnicity warrant deeper analysis to understand the underlying reasons, such as whether certain groups of travelers are exposed to qualitatively different hazards when they travel. We discuss frameworks for including information about injury disparities in decision-making. 相似文献
4.
The last three decades have witnessed substantial growth in the literature on excess commuting. Researchers have proposed and applied a number of commuting benchmarks and excess commuting indices that aim to evaluate the commuting efficiency and jobs-housing balance of cities. A comprehensive review and comparative evaluation of the proposed metrics in terms of their ability to capture the intended phenomena, while controlling for the other general characteristics of cities, has yet to be performed. This article attempts to fill this gap by examining four commuting benchmarks (minimum commute, maximum commute, random commute, and proportionally matched commute) and five excess commuting indices (excess commute, commuting potential utilized, commuting economy, normalized commuting economy, and effort). Our conceptual analysis of the indices is complemented with a comparative empirical analysis of commuting in thirty Canadian cities. We explore relationships between the indices and point out the strengths and limitations of each. The findings suggest that no single index can adequately capture the commuting performance of an urban area, while each index can be employed to address a specific policy question. Used together, the indices can provide a reasonably good understanding of urban form and commuting behavior. 相似文献
5.
Youcheng Wang 《International Journal of Tourism Research》2008,10(1):55-70
The Web‐based destination marketing system (DMS) has been widely used as a distribution channel and marketing tool by destination marketing organisations (DMOs) at different levels in the promotion and management of tourism destinations. However, successful Web marketing requires a systematic approach in understanding key factors supporting the management and implementation of the DMS both from business and technical perspectives. The purpose of this study is to assess the critical factors of the Web‐based DMS used by DMOs in the USA on the following five areas: website function design, website promotion, Website‐performance measurement, Web‐marketing impact assessment and organisation technology environment. Discussions of the study results and implications for Internet destination marketing and management are also provided. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
6.
Emma Wood 《International Journal of Tourism Research》2001,3(4):283-299
This study investigates the nature of marketing information systems (MkIS) within small‐ and medium‐sized enterprises (SMEs) and focuses on the importance of external information and market intelligence. The sources of market intelligence are investigated with particular emphasis on understanding the usefulness of the Internet for external information gathering. The empirical research to support the study uses survey methods to investigate marketing information systems, market intelligence and Internet use within hospitality and tourism SMEs in the Yorkshire and Humber region. The findings indicate that SMEs in this sector make use of informal marketing information systems which mainly concentrate on internal and immediate operating environment data. Important wider market intelligence is underutilised owing mainly to the resource constraints of these smaller businesses. The Internet has not yet been recognised as an important source for market intelligence despite having the benefits of providing much of the necessary data more quickly and at a lower cost than many other sources. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献
7.
Dale Fodness 《旅游业当前问题》2017,20(16):1671-1683
Sustainability is a principle and practice expected of tourism development and management. The uneven performance of sustainable tourism policies and strategies is generating increasing attention and concern, along with a need to better understand sustainability and the problems it presents tourism planners and managers. In this article, we investigate the notion that traditional tourism problem-solving paradigms and approaches are not effective for all of the problems arising in sustainable tourism and explore what new approaches may be required. After a brief, but necessary definition of key concepts, we take a look at the range of problems which can arise in sustainable tourism and review what research has to offer in terms of understanding why some of these problems seem resistant to traditional problem-solving approaches. Following that, we consider the problems of sustainable tourism through a series of three analytical lenses, the Cynefin Framework, Complexity Science and Wicked Problems, to explore what would be required to address the more intractable problems of sustainable tourism. Examples of problems from sustainable tourism are used to illustrate how each analytical lens frames problems, incorporates stakeholder perspectives, and identifies alternative causes, processes and outcomes of problems. We conclude with implications for both theory and practice. 相似文献
8.
Urban rail systems investments: an analysis of the impacts on property values and residents’ location 总被引:1,自引:0,他引:1
Light rail, metro and other urban rail transit systems can play a significant role in improving the attractiveness and quality of urban public transport. They can influence the attractiveness of locations near the stations and improve accessibility for these locations. Furthermore urban rail can improve a location’s attractiveness by its image effect: it makes a station appear modern and dynamic, and thus raises the status of this location.This paper summarises findings on the land-use and economic impacts of the urban rail system of the city of Naples over time and space. It examines changes in residential and non-residential (offices and retail) property prices around the newly built stations between 2001 and 2008 as well as the changes in the number of residents for the same station catchment areas. Ad hoc station control areas have been specified in order to compare the results of these changes. Results show that values in station control areas are lower than those of those of the stations catchment areas. 相似文献
9.
Graeme Evans 《International Journal of Tourism Research》2000,2(5):307-326
The paper presents a critique of tourism policy in London in the context of local environmental plans and central government policy for tourism and hotel development. Rationales for local authority tourism policies are assessed in relation to city‐level planning imperatives and local land‐use plan formulation. A comparative analysis of borough development plans and the treatment of tourism is based on a survey of London's 33 unitary authorities. The paper presents a World City case study of urban tourism from the position of the environmental planning process and in the light of the highly concentrated distribution of hotel provision and tourist activity in London. Copyright © 1999 John Wiley & Sons, Ltd. 相似文献
10.
A four-tiered approach to understanding motorised recreation in natural and protected areas is introduced, using examples of motor events from Australia to demonstrate each conceptual level. The aim is to increase understanding of motorsport and motorised recreation phenomena that impact natural and, in particular, protected areas and other users of the natural environment. An illustrative study approach shows the interrelatedness of multi-level motorised recreation and its governance, from local community motor clubs and amateur motor racing competition through to international hallmark motor racing events and how their sociocultural significance influences protected area management. The illustrative examples show user groups engaged in governance and policy issues of motorised recreation in natural and protected areas. These groups include both motor clubs involved with environmental management of natural and protected areas, as well as professional and community groups opposed to motorised recreation in protected areas. An agenda for further research is identified, including policy and governance of motorsport, large-scale events and protected area management and impacts of motorised recreation and events on the environment and the community including those who access the natural environment for more contemplative and quiet leisure pursuits. 相似文献
11.
Javier Gutirrez 《Journal of Transport Geography》2001,9(4):926
This paper evaluates the accessibility impact of the future Madrid–Barcelona–French border high-speed line. Accessibility impact of the new infrastructure is measured by means of three indicators: weighted average travel times, economic potential and daily accessibility. These indicators respond to different conceptualizations and offer complementary information about the issue accessibility. The results are quite different: very concentrated effects in the daily accessibility indicator, less concentrated in the economic potential one and more dispersal in the location indicator. The sign (polarizing/balancing) of these effects depend on the geographic scale: polarizing effects at the national level and balancing effects at both corridor and European levels are identified. A geographic information system (GIS) was used to carry out this study. 相似文献
12.
Christoffel Venter Gail Jennings Darío Hidalgo Andrés Felipe Valderrama Pineda 《International Journal of Sustainable Transportation》2018,12(2):140-152
The paper offers an analysis of empirical evidence on the equity impacts of operational Bus Rapid Transit (BRT) systems in the Global South. The focus is on vertical equity, i.e. whether BRT systems achieve progressive benefits for poorer segments of the population. Findings from Africa, Asia, and Latin America all suggest that BRT does offer significant benefits to low-income groups, in terms of travel time and cost savings, access enhancement, and safety and health benefits. However benefits are often skewed toward medium-income users and thus less progressive than they might be. Two primary reasons for this are insufficient spatial coverage and inappropriate fare policies. While many features of BRT potentially allow it to deliver pro-poor outcomes, such outcomes only materialize if BRT implementers pay specific and sustained attention to equity. The paper identifies key issues that need to be addressed to steer BRT implementation toward more socially sustainable outcomes—including better integration with other transit, paratransit, and nonmotorized transport services, and with the housing sector. 相似文献
13.
Douglas Houston Paul Ong Guillermo Jaimes Arthur Winer 《Journal of Transport Geography》2011,19(6):1399-1409
Traffic exposure assessments could misclassify the extent and locations of exposure if traditional recall surveys and self-reported travel diaries do not record all participant activities. The Harbor Communities Time Location Study (HCTLS) examines the nature, extent and implications of underreported locations/trips in a case study which used portable Global Positioning Systems (GPS) devices to track the diurnal patterns and traffic exposure of 47 residents of communities near the Los Angeles–Long Beach port complex. Participants were similar to adults nationwide in time spent indoors, in-vehicle, and outdoors, but spent more time indoors at home (78% vs. 66%). Overall, participants did not report nearly half (49%) of the locations and trips identified in GPS-enhanced data on their activity diaries, resulting in about 3 h/day in unreported locations and 0.6 h/day in unreported trips. The probability of a location/trip being underreported was systematically correlated with participant and location/trip characteristics. Self-reported data missed about 50 min of heightened air pollution exposures during the 5 h/day on average participants spent in high-traffic areas and about 30 min during the 4 h/day near truck routes. GPS-enhanced methods provide opportunities to more precisely characterize exposure periods and tools to identify facility, roadway, and land use types of the greatest concern for mitigation efforts. 相似文献
14.
Larry Dwyer Tanja Armenski Ljubica Kneevi Cvelbar Vanja Dragievi Tanja Mihalic 《International Journal of Tourism Research》2016,18(4):327-340
A modified nine‐quadrant importance–performance analysis is employed to assess the importance which Slovenian and Serbian tourism industry stakeholders attach to 48 nominated strategic activities to promote business and destination competitiveness. An important finding is that respondents in each country allocated the bulk of activities to the ‘keep up the good work’ strategy. In both destinations, this strategy was dominated by activities related to product development and innovation. The paper concludes with a discussion of how the identified priority activities require close examination to determine their ‘enabling conditions’ and the implications of an action based on them. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献