Abstract
The urban utility tunnel presents solutions for the sustainable development of urban underground space, and is an important carrier of power distribution network and integrated energy systems. Considering the high investment cost of utility tunnels and the limitations of traditional cost sharing methods (i.e., spatial proportional method, direct-laying cost method and benefit-based proportional method), it is of great significance to establish a fair and practical cost sharing mechanism. First, an improved Shapley value-based spatial proportional method is proposed. A comprehensive decision-making mechanism for utility tunnel construction cost allocation is established by using the improved spatial proportion, the life-cycle direct-laying cost proportion, and the benefit proportion of pipeline companies as the cost allocation indexes. The resource dependence theory is introduced to quantify the bargaining power of each pipeline company in the negotiation of the cost allocation. The weights of the cost allocation indexes in the comprehensive decision-making model are optimized with the objective of maximizing the overall satisfaction of the pipeline companies. Simulations based on the data of utility tunnel pilots in China illustrate that the proposed cost allocation mechanism has the highest overall satisfaction and is more acceptable and more feasible than the traditional cost allocation methods. For power companies, the cost of laying power cables can be significantly reduced by utility tunnels, and laying 10 kV power cables has been shown to have higher economic benefits.
Highlights
With the acceleration of urbanization, residents’ demands for system reliability, power quality and living environment are increasing
The weights of the cost allocation indexes are optimized with the objective of maximizing the overall satisfaction of the pipeline companies
The urban utility tunnel is an important infrastructure of urban multi-energy supply system, which presents solutions for the sustainable development of urban underground space, and has great economic and social benefits
Summary
With the acceleration of urbanization, residents’ demands for system reliability, power quality and living environment are increasing. The difference of construction cost, operation cost, and maintenance cost between the UUT-laying pipeline and traditional buried pipeline within the life cycle of utility tunnel is proposed in references [8,9,11], the additional benefits brought from power network expansion in the life cycle of UUT are not considered, which makes the evaluation results inaccurate. Given this background, a comprehensive decision-making mechanism for UUT construction cost allocation is proposed to overcome the limitations of traditional cost sharing methods and maximize the overall satisfaction of pipeline companies, and the economic benefit of UUT-laying power cables is evaluated on this basis.
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