טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentIrina Gololob
SubjectComputerized System for Comparative Evaluation on
Construction Methods and Materials
DepartmentDepartment of Architecture and Town Planning
Supervisor Dr. Yezioro Abraham


Abstract

Practice of building design requires that the design team makes very efficient use of its resources and time . The purpose of this work is to offer an approach, which will enable architects and entrepreneur’s capability of fast and comfortable choice of building envelope construction methods. The choice is made by establishing the profitability of every alternative method, also presenting their performance, considering numerous criteria. The purpose of the approach presented in this work is to help the architect in defining priorities, setting goals, finding appropriate solutions and assessing all those, all of these while making sure that all criteria of successful planning are taken into consideration. A principal model was developed on the basis of the approach. The model consists of 4 modules each of them represents a stage in the decision making process and presents a separate system responsible for different actions. Such modular structure gives the model the ability to solve complex problems. Their solution depends on many factors that require taking different aspects into consideration in order to prevent loss and distortion of information. This work implements the fourth module (Analysis), a computerized support system that enables architects to easily find the way among various building envelope construction methods, thus securing sustainable design.

This work looks at the application of multiple criteria decision making (MCDM) techniques in the assessment of environmentally sensitive construction methods. Cost benefit analysis is one of the conventional techniques used widely by public and private sectors in the appraisal of projects by means of a market approach. However, externalities, intangibles and environmental impacts need to be incorporated into the evaluation and a strategy needs to be developed to give these factors proper consideration. Due to the fact those impacts can hardly be assessed in economic terms within a market approach framework, the MCDM techniques, like Compromise Programming (CP), are investigated and applied to value these impacts in a non-monetary approach. CP identifies non-dominated solutions under the most general conditions, allows specified goals and, most important, provides an excellent base for interactive programming. Using the distance concept as a proxy measure for human preferences makes CP a sound and operational approach in helping the decision maker choose a solution. The motivation behind this method is the desire to achieve a solution that is as “close” as possible to some “ideal”, while accepting the basic postulate that the decision maker prefers solutions as close as possible to this ideal.