都會區之主要幹道除為串連交通行為的空間外，更為眾多活動發生之場域，然在以機動車輛為主之道路空間規劃下，許多都市問題與亂象發生，由此1990年代提倡都市規劃應以「人」為本的新都市主義(New Urbanism)思潮出現，針對都市空間景觀倡導運用都市設計、永續運輸等策略，創造適宜人居之都市環境。而台北市為台灣首善之都，雖自民國80年起進行一連串都市空間檢討，然仍忽略主要幹道空間，而台北都會區大眾捷運網絡基本雛形已於民國89年底完成，路網設計多沿主要幹道興建，營運至今，民眾對公共運具之使用率確有增加並降低部分汽車使用量。由此，若能重新檢討並調整道路空間比例，基於人車共存之概念，綠美化主要幹道景觀，營造正面感受之環境意象，可提升市民對所居都市之認同感，亦可符合民眾日益昇高之生活環境品質要求，創造優質都市環境。 / 有鑑於此，本研究以台北都會區主要幹道為研究空間，忠孝東路、羅斯福路部份路段為實驗場域，進行幹道空間之檢討與空間改造計畫之評估，將「以人為主」之都市規劃理念導入交通規劃中，整合都市永續發展、都市設計及運輸相關理論，歸納出都會區主要幹道空間之規劃手法應包涵TOD之都市發展型態、塑造適宜之人行空間、調整幹道道路空間、結合都市設計之規範及永續運輸之交通規劃方式等五大項目。基此，考量人行、車行、幹道景觀、社會公平與幹道空間多樣化使用，在達成永續運輸之目標下，從「交通順暢性」、「步行親和性」、「景觀寧適性」、「場域複合性」等四大層面，建立適合研究範圍之「都會區主要景觀幹道最佳設計」評估架構。本研究應用模糊多準則評估方法，先透過專家德爾菲(Delphi)法確定評估架構後求取評估架構之權重值，並依所建立之評估架構計算忠孝東路與羅斯福路各幹道空間改造方案之績效值，以相對客觀的方式整合不同領域專家之價值判斷，應用模糊層級分析(Fuzzy AHP)法遴選研究範圍最適之幹道空間改造計畫，進行研究範圍最佳幹道空間改造方案之排序。 / 本研究評估結果發現最後遴選出之最適空間改造方案內容，均為調整道路路型、配置最大化人行空間之方案，將過去以汽車為主的幹道空間轉為對行人友善之場域，並強調綠化幹道景觀與多樣化使用。同時，由不同群體對各評估面向權重值之差異可發現學生群體著重幹道所提供之交通功能，學者及政府都市計劃單位著重幹道之人行空間，政府交通單位則並重幹道之車行與人行空間。此外，本研究亦根據評估結果研提相關改造計畫執行配套措施之建議，期所採行之幹道空間改造計畫評估方式，可供政府有關單位進行幹道空間檢討與改造評估時，一個相對客觀的決策進行過程與執行參考。 / The major arterials of a metropolis are places where not only connect traffic but lots of activities occurred. However, many urban problems came up under the roadway planning that according to mobile vehicles and resulted in an ideological trend named “New Urbanism” in 1990s. That promote urban planning should according to human beings and use strategies as urban design and sustainable transport for landscape to create a urban environment that is livable-in. / Taipei city is the biggest city of Taiwan at which we have reflected on urban space but have ignored review the major arterials since 1991. Then, the embryo network of mass rapid transit system of Taipei metropolitan area which was designed along major arterials has established in 2000. Since that, the using rate of public transportation has been increasing and decreasing part of quantity of private transportation. We can base on the construct “people-cars coexist”, therefore, review and regulate road -way scale to green the major arterials’ landscape, to shape a positive environmental image. It could promote townspeople’s identification of the city where they live in and conform to the increasing request for the quality of medium in the result of a high quality urban circumstance. / Base the above, this research chose Zong-Xiao east road and Roosevelt road of Taipei metropolis as the survey area to review the roadway landscape and evaluate spatial transforming schemes. We blended the new urbanism into transport planning and integrated with theories of sustainable development, urban design and transportation to generalize the medium of the major arterials area planning should contain five contents: TOD, mold a pedestrian-friendly area, adjust the allotment ratio of arterial, combine methods of urban design and sustainable transportation. Therefore, we took pedestrian, vehicles, arterial’s landscape, arterial space using diversification into account and under the goal, which achieve sustainable transportation established evaluative framework with four objectives: ” traffic smooth”, pedestrian-friendly” , “elegant and comfortable landscape”, and ”space complexity”. By utilizing fuzzy-MCDM approach, first, depended on fuzzy-Delphi method to ascertain that evaluative framework then counted the weights of criteria. According to the evaluative framework established by this research calculated the results of spatial transforming schemes of Zong-Xiao East road and Roosevelt road. Then adopting fuzzy-AHP method to integrate experts’ judgements of different domains, all proposed spatial schemes are reviewed and best arterial landscape transforming scheme were generated. / Evaluation result found that the best scheme with maximum pedestrian space shows the concepts of transforming the arterial area to be a pedestrian-friendly space and emphasizing green landscape, mixed land use. Furthermore, divergent preference of different groups were analyzed and found that students concentrate the transportation capability of arterial, experts and government planning departments focus on the pedestrian space of arterial, government’s transportation departments emphasize both on the car-lanes and pedestrian space. Research result construct a objective framework and review process for evaluating major arterial and also generate a best transforming scheme of those two roads, can be as a reference basis for urban re-design work of city government.

This thesis describes the role of cost effective maintenance in achieving competitive advantages. It explores by means of a survey which maintenance practices are used, and how maintenance policies are selected in Swedish industries. Also, it suggests a model for selecting the most cost effective maintenance policy, and how to improve the effectiveness of condition based maintenance decision-making. Finally it discusses how to assess the impact of maintenance practices on business strategic objectives. The main results achieved in the thesis are 1) A better understanding of maintenance organisation, management, systems and maintenance status in Swedish industry. For example, it was found that about 70% of Swedish companies still consider maintenance as a cost centre. Preventive and predictive maintenance approaches are also emphasised. 2) Most Swedish firms, i.e. about 81%, use the accumulated knowledge and experience within the company as a method for maintenance selection. Besides, about 31% use a method based on modelling the time to failure and optimisation. About 10% use failure mode effect and criticality analysis (FMECA) and decision trees and only 2% use multiple criterion decision-making (MCDM). However, the most used maintenance selection method is not the one most satisfactory to its users. Furthermore, about 30% use a combination of at least two methods. 3) A practical model for selecting and improving the most cost effective maintenance policy was developed. It is characterised by incorporating all the strengths of the four methods used in industry. 4) A mechanistic model for predicting the value of vibration level was verified both at the lab and in a case study. 5) A model for identifying, assessing, monitoring and improving the economic impact of maintenance was developed and tested in a case study. Thus it was proved that maintenance is no longer a cost centre, but could be a profit-generating function. To achieve competitive advantages, companies should do the right thing, e.g. use the most cost effective maintenance policy, and they should do it right, e.g. ensure that they have the right competence. Furthermore, they should apply the never-ending improvement cycle, i.e. Plan-Do-Check-Act, which requires identifying problem areas by assessing the savings and profits generated by maintenance and monitoring the economic impact of the applied maintenance policy. Thus, they would know where investments should be allocated to eliminate the basic reasons for losses and increase savings. The major conclusion is that proper maintenance would improve the quality, efficiency and effectiveness of production systems, and hence enhances company competitiveness, i.e. productivity and value advantages, and long-term profitability.