Abstract
AbstractAs a planning strategy, “connectivity” has been used to promote the functions of Urban Waterfront space to revitalize the city. By analyzing the hierarchy of functions of Urban Waterfront, namely ecological function, social function and context function, an index system of assessing its functions is proposed. In order to overcome the drawbacks which are only used numerical scales or simple linguistic values in the traditional expert evaluation for the functions of Urban Waterfront, a proportional 2-tuple linguistic representation model is introduced. Some proportional 2-tuple linguistic aggregation operators are proposed, such as PTWA, PTOWA, PTHA operators. A group decision making procedure to evaluate the functions of urban waterfront by the proposed proportional 2-tuple linguistic operators is developed. A case study of two typical redevelopment projects in West Lake Waterfront of Hangzhou of China is also provided.
Highlights
Accompanied by old city reconstruction and new zone development, China’s urban waterfront redevelopment has been coming into a new stage of landscape design & planning in recent years
Based on the proportional 2-tuple weighted average (PTWA) operator and proportional 2-tuple hybrid linguistic operator (PTHA) operator, we propose a practical procedure for group decision making to evaluate functions of Urban Waterfront with proportional 2-tuple linguistic information
In the paper “"Connectivity" in Urban Rivers: Conflict and Convergence between Ecology and Design”, Rachel[10] has revealed the meaning and conflict between the ecology, social function and context in urban waterfront redevelopment, which is a theoretical basis that we evaluate the urban waterfront functions in this paper
Summary
Accompanied by old city reconstruction and new zone development, China’s urban waterfront redevelopment has been coming into a new stage of landscape design & planning in recent years. Linguistic information is represented by proportional 2-tuples, such as (0.2 l4,0.8 l5) for the case when some expert gives that the evaluation of the alternative is distributed as 20% good and 80% very good. Considering that the experts always give the proportional linguistic variables when evaluating urban waterfront functions, in this paper, we adopt the proportional 2-tuple linguistic model. Based on the PTWA operator and PTHA operator, we propose a practical procedure for group decision making to evaluate functions of Urban Waterfront with proportional 2-tuple linguistic information.
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