The Experts below are selected from a list of 61743 Experts worldwide ranked by ideXlab platform
Yichang Chiu - One of the best experts on this subject based on the ideXlab platform.
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a network flow algorithm for the cell based single Destination System optimal dynamic traffic assignment problem
Transportation Science, 2011Co-Authors: Hong Zheng, Yichang ChiuAbstract:The cell-transmission model-based single-Destination System optimal dynamic traffic assignment problem proposed by Ziliaskopoulos was mostly solved by standard linear programming (LP) methods, e.g., simplex and interior point methods, which produce link-based flows involving vehicle-holding phenomenon. In this paper we present a network flow algorithm for this problem. We show that the problem is equivalent to the earliest arrival flow and then solve the earliest arrival flow on a time-expanded network. In particular, a scaled flow scheme is proposed to deal with the situation in which the ratio of backward wave speed to forward wave speed is less than one. The proposed algorithm produces path-based flows exhibiting realistic nonvehicle-holding properties. Complexity and numerical analyses show that the algorithm runs more efficiently than LP.
Athanasios K Ziliaskopoulos - One of the best experts on this subject based on the ideXlab platform.
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a linear programming model for the single Destination System optimum dynamic traffic assignment problem
Transportation Science, 2000Co-Authors: Athanasios K ZiliaskopoulosAbstract:Recently, Daganzo introduced the cell transmission model--a simple approach for modeling highway traffic flow consistent with the hydrodynamic model. In this paper, we use the cell transmission model to formulate the single Destination System Optimum Dynamic Traffic Assignment (SO DTA) problem as a Linear Program (LP). We demonstrate that the model can obtain insights into the DTA problem, and we address various related issues, such as the concept of marginal travel time in a dynamic network and System optimum necessary and sufficient conditions. The model is limited to one Destination and, although it can account for traffic realities as they are captured by the cell transmission model, it is not presented as an operational model for actual applications. The main objective of the paper is to demonstrate that the DTA problem can be modeled as an LP, which allows the vast existing literature on LP to be used to better understand and compute DTA. A numerical example illustrates the simplicity and applicability of the proposed approach.
Hong Zheng - One of the best experts on this subject based on the ideXlab platform.
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a network flow algorithm for the cell based single Destination System optimal dynamic traffic assignment problem
Transportation Science, 2011Co-Authors: Hong Zheng, Yichang ChiuAbstract:The cell-transmission model-based single-Destination System optimal dynamic traffic assignment problem proposed by Ziliaskopoulos was mostly solved by standard linear programming (LP) methods, e.g., simplex and interior point methods, which produce link-based flows involving vehicle-holding phenomenon. In this paper we present a network flow algorithm for this problem. We show that the problem is equivalent to the earliest arrival flow and then solve the earliest arrival flow on a time-expanded network. In particular, a scaled flow scheme is proposed to deal with the situation in which the ratio of backward wave speed to forward wave speed is less than one. The proposed algorithm produces path-based flows exhibiting realistic nonvehicle-holding properties. Complexity and numerical analyses show that the algorithm runs more efficiently than LP.
Meredith Wray - One of the best experts on this subject based on the ideXlab platform.
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policy communities networks and issue cycles in tourism Destination Systems
Journal of Sustainable Tourism, 2009Co-Authors: Meredith WrayAbstract:This paper demonstrates how concepts derived from policy community, policy network and issues management theories can be used to understand the roles, activities and interactions of government, corporate and pressure group stakeholders engaged in tourism policy, planning and management in Destination contexts. It shows the relevance and utility of an “integrated issue lifecycle approach” to trace the evolution of tourism policy, planning and Destination management within specific Destination contexts. The application of this approach is demonstrated through a case analysis of the tourism policy and planning System that underpins the Destination System of Byron Bay, a significant domestic and international Destination on the East Coast of Australia. The underlying premise adopted for this study is that the examination of the antecedents of tourism policy and planning processes, within particular Destination contexts, can lead to an understanding of the driving values and ideas that have led to contemporary...
Šerić Luka - One of the best experts on this subject based on the ideXlab platform.
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Event as the Initiators of the Development of the Tourism in the Destination
University of Dubrovnik. Department of Economics and Business Economics., 2019Co-Authors: Šerić LukaAbstract:Svrha rada je pojasniti i definirati pojam manifestacije u turizmu i sponzorstvo. U kontekstu turizma i turističkog sustava manifestacije čine ključni element u turizmu, manifestacije su važan poticajni čimbenik razvoja turizma, unutar odredišnog područja (tj. manifestacije su istaknute u razvojnim i marketinškim planovima većine odredišta). Manifestacije su dio prostora, komponente, ali imaju snažni promotivni efekt atraktivnosti odredišta. U osnovi su ključni marketinški prijedlozi u promociji mjesta s obzirom na sve veću globalnu konkurentnost, konkretno za privlačenje posjetitelja i povećanu potrošnju. Manifestacije su postale ključni element odredišnog sustava gdje su smještaj, atrakcije, prijevoz i pomoćne usluge korišteni ili posebno razvijeni (npr. pružanje infrastrukture za mega manifestacije) kako bi se time poboljšala ponuda destinacije, širenje turističkih potencijala i kapaciteta destinacije izvan uskog fokusiranja na turizam temeljen na zabavi. U prvom dijelu rada uz pojmovno definiranje manifestacije i teoretski okvir značenja koje imaju kao odraz izvornosti kraja, kulturnog proizvoda, određuju se i uloge koju imaju na privlačenju novih tržišnih niša. U drugom dijelu rada, kroz istraživanje dokazuje se intenzitet njihovog utjecaja na oblikovanje proizvoda u odredištu, čime se potvrđuje njihova dvojna uloga i promoviranje potencijala proizvoda sa snažnim mogućnostima.The purpose of the paper is to clarify and define the concept of manifestation in tourism and sponsorship. In the context of tourism and the tourism System, manifestations are a key element in tourism, manifestations are an important driver of tourism development, within the Destination area (ie manifestations are highlighted in the development and marketing plans of most Destinations). Events are part of the space component but have a strong promotional effect on the attractiveness of the Destination. Fundamentally, marketing proposals are key in promoting the site given its increasing global competitiveness, specifically to attract visitors and increase spending. Events have become a key element of the Destination System where accommodation, attractions, transportation and ancillary services are used or specially developed (eg, providing mega event infrastructure) to enhance Destination offerings, expand tourism potential and Destination capacity beyond a narrow focus on tourism based tourism. at the party. In the first part of the paper, along with the conceptual definition of manifestation and the theoretical framework of the meanings that they have as a reflection of the originality of the end, the cultural product, the role they play in attracting new market niches is determined. In the second part of the paper, the research proves the intensity of their influence on the design of products in the Destination, thus confirming their dual role and promoting the potential of products with strong capabilities