A suppressed demand analysis method of the transportation disadvantaged in policy making

Duvarcı, Yavuz; Mizokami, Shoshi

doi:10.1080/03081060902861400

Cited by 17 publications

(9 citation statements)

References 20 publications

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“…Since the impedance changes are trivial, they do not impose serious impact on the system. When the impacts of simulations are analysed, an interesting result became noteworthy; improvements made for TDA actually relieved the traffic load (see Duvarci and Mizokami, 2009) on the links to the trivial extent, most probably due to the modal shifts to the public mode from private due to the increased quality and attractiveness of public transport as a result of policy measures. Still, the most crucial finding remains to be that there are not great differences between the base and simulation assignments.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…This approach aims to provide a solution to represent TDA views in policy determination. Therefore, it utilises mixed stated preference and revealed preference survey techniques, to understand traveller reactions against various policy scenarios, and helps inclusion of the user preferences, and thus enables participation of TDA in the policymaking process containing different scenarios and solution options (Lam and Xie, 2002;Alver and Mizokami, 2006;Duvarci and Mizokami, 2009). Investigating the compatibility of the approach to commercially available mainstream software-i.e., JICA-STRADA-is the secondary aim of this research.…”

Section: Introductionmentioning

confidence: 99%

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Transportation disadvantage impedance indexing: A methodological approach to reduce policy shortcomings

Duvarcı

Yiğitcanlar

Mizokami

2015

Journal of Transport Geography

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Access to transport systems and the connection to such systems provided to essential economic and social activities are critical to determine households' transportation disadvantage levels. In spite of the developments in better identifying transportation disadvantaged groups, the lack of effective policies resulted in the continuum of the issue as a significant problem. This paper undertakes a pilot case investigation as test bed for a new approach developed to reduce transportation policy shortcomings. The approach, 'disadvantage-impedance index', aims to ease transportation disadvantages by employing representative parameters to measure the differences between policy alternatives run in a simulation environment. Implemented in the Japanese town of Arao, the index uses trip-making behaviour and resident stated preference data. The results of the index reveal that even a slight improvement in accessibility and travel quality indicators makes a significant difference in easing disadvantages. The index, integrated into a four-step model, proves to be highly robust and useful in terms of quick diagnosis in capturing effective actions, and developing potentially efficient policies.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transportation disadvantage impedance indexing: A methodological approach to reduce policy shortcomings

Duvarcı

Yiğitcanlar

Mizokami

2015

Journal of Transport Geography

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“…Scholars' concerns about travel deprivation mainly focus on residents' inequity during travel; however, few studies measured the value of travel deprivation. Duvarci and Mizokami assumed that the travel needs of traffic-vulnerable groups were all met, and on this basis, they further assessed travel equity among different groups, and proposed corresponding travel guidance strategies to reduce travel deprivation [35]. Lucas studied the phenomenon of travel deprivation in developing countries of Southern Africa.…”

Section: Literature Reviewmentioning

confidence: 99%

Fuzzy Multidimensional Assessment Approach of Travel Deprivation in Small Underdeveloped Cities: Case Study of Lhasa, China

Cheng

Jiang

Tao

2021

Journal of Advanced Transportation

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In small, underdeveloped Chinese cities, the travel needs of economically disadvantaged residents have not been satisfactorily met for a long time, and thus, the problem of travel inequality has become increasingly serious. This study developed and applied a fuzzy multidimensional assessment approach of travel deprivation to assess the travel deprivations that arise because of this travel inequity. The resulting model includes both monetary and nonmonetary indicators, and involves multiple measurement items, dimensions, and related weights. Then, this fuzzy multidimensional assessment approach of travel deprivation is used to measure the travel deprivation in the underdeveloped, small city of Lhasa, China. The results identified both differences and similarities between different parts of the city. Among all measured dimensions, the following four dimensions cause strong travel deprivation: disposable income, travel service quality, travel time, and available transportation. Differences in the travel deprivation were identified between different parts of Lhasa, indicating multidimensional travel deprivation. Furthermore, an early warning analysis on travel deprivation and an assessment of different levels of residents’ travel deprivation in underdeveloped cities are presented. These findings provide an effective evaluation of the current situation of travel inequity in underdeveloped small cities.

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“…However, having no added infrastructure will not cure, but escalate the problem [10,[44][45][46]. Hence, the advocates of the opposing view think that the added capacity is needed [47][48][49][50]. Good management of traffic is the keyword.…”

Section: Growing Traffic Problems In Urban Areas and Basic Simulationmentioning

confidence: 99%

Can Tube Tunnel Crossings Relieve Urban Congestion Problems? Izmir Tube Tunnel Project Proposal Under Scrutiny

Duvarcı

Yiğitcanlar

2019

Sustainability

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Building underwater tube tunnel crossings to ease the urban congestion problems has become a popular approach for many cities across the globe. London, New York, Istanbul, Hamburg, Sydney and Brisbane are among these cities. However, the effectiveness and externalities of these expensive mega urban infrastructures have also been questioned widely among urban, transport and environmental planning scholars. Given the international popularity of the topic, this study places a new tube tunnel crossings project from Izmir, Turkey under the microscope. In this heuristic simulation study, policy-on scenarios were tested to determine possible impacts of the underwater tube tunnel-crossing project. The traffic impacts are discussed using simulations assigning the initial origin–destination data. The results of the study revealed that, given the two locations, outer and inner locations over the dagger-shape bay, the capacity increments on the bridge links and the links around the periphery highway did not bring any effective solutions beyond some minor improvements. The findings disclosed that the ineffectiveness of the tube tunnel crossing might be due to the excessive congestion happening all over the downtown area, which clogs the passageways to the bridge. The paper highlights the limitations of the tube tunnel-crossing project, emphasises the need for comprehensive investigations before committing to the project and advocates the emphasis to be actually given for sustainable mobility.

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A suppressed demand analysis method of the transportation disadvantaged in policy making

Cited by 17 publications

References 20 publications

Transportation disadvantage impedance indexing: A methodological approach to reduce policy shortcomings

Transportation disadvantage impedance indexing: A methodological approach to reduce policy shortcomings

Fuzzy Multidimensional Assessment Approach of Travel Deprivation in Small Underdeveloped Cities: Case Study of Lhasa, China

Can Tube Tunnel Crossings Relieve Urban Congestion Problems? Izmir Tube Tunnel Project Proposal Under Scrutiny

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