The number of elderly and physically challenged people who fall down in buses is increasing in Japan. Hence, in the fiscal year 2004, we installed non-slippery and ecological floor material made of quartz in a bus and requested customers and bus companies to provide functional evaluations. In the fiscal year 2005, we equipped buses from three companies with the new floor material. Each research revealed that on the whole, approximately 80% of the customers evaluated the non-slip function of the material highly. Additionally, we received a high evaluation for the design of the flooring and the affinity of their shoes to the material. These days, in the process of developing low-floor buses, the 0.52 corporate social responsibility (CSR) value is used as the standard based on the regulations of the Japan Auto-body Industries Association, Inc. However, in this research, we introduced the best CSR value as floor material for universally designed buses. We recognized the CSR for low-floor buses as 0.566. This finding will be useful when the Ministry of Land Infrastructure and Transport sets a new standard for developing low-floor buses.

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In Japan, with the number of elderly people and physically-challenged people increasing, it is important to protect passengers from accidents caused by floor material used in trains and buses and so on. In order to prevent passengers from falling due to slipping or stumbling, we developed a floor material using quartz. We laid the quartz-based floor near a subway entrance and gathered opinions of passengers through a questionnaire after they walked on the floor. 176 out of 500 people surveyed responded to our questions. The effectiveness of the quartz-based floor material we developed was confirmed through favorable responses on the questionnaire and users' requests that the quartz-based floor material be used on station stairs as well as in trains and buses.

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Chusanren Building completed in 1963 was designed by Junzo Sakakura, of which design feature is floating volume covered with green tiles and warped eaves. It has experienced its renovation many times, and interestingly the owner itself has decided each renovation policy, without asking Sakakura. I summarized how it has been renovated and evolved, through architectural drawings, repair records, interviews, and confirmation of the current conditions. Consequently, it became clear that the parts of the building related to its design feature are mostly maintained, and only the other parts are functionally updated for its purpose from time to time.

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First, we organized physical operations on design in the renovation of buildings, and quantify them. We define that as the degree of change. Next, we did the psychological experiments of visual assessment on renovation of buildings.
We analyzed by using correlation coefficients and self-organizing map. And we considered to clarify the relationship of visual assessments and degree of changes on design in the renovation of buildings.

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 School classrooms are obliged to set the aperture ratio to 1/5 or more of floor areas according to the Building Standards Law, and a large window opening is provided. In recent years, in the design of school facilities aimed at energy saving, window design is contrived to realize daylight use. However, providing a large area for daylight and taking in more sunlight is not directly related to the reduction of lighting energy. It is necessary to improve the uniformity of luminance and remove glare through architectural design such as a daylighting method and shading devices. Also, it is needed for users to turn off artificial lighting when the luminance is sufficiently obtained by daylight. Therefore, it is necessary to organize the problems of a school's daylighting and lighting plan, including the user's environmental adjustment behavior.

 This study aims to indicate the environmental light conditions of classrooms with contrived windows, the actual use of artificial lighting and light shielding devices, and the problems and the possibilities of daylight use in school buildings. In two elementary schools where the daylighting method was contrived, we measured the light environment and surveyed its use. Additionally, we conducted a trial to reduce the use of artificial lighting with the cooperation of teachers and children.

 From the measurement result of the light environment in the classroom, it was confirmed that the distribution in the classroom with multiple windows is more uniform, compared with the standard design type of school building with windows on the southern one side. Also, in the classroom with multiple windows, the recommended illuminance was satisfied at any measurement point on a sunny day, and the average luminance also fulfilled the design criteria. However, in winter, when the curtain was closed to avoid the incidence of direct light, the brightness ratio between the window surface and the inside of the classroom was large.

 According to the survey of the use of the light shielding device and artificial lighting, it was indicated that the light shielding device is not only used for direct sunlight but, also, for shielding the eyesight. Artificial lighting is always used regardless of the brightness in the classroom.

 From our results, we summarize factors to pay attention to reducing energy consumption by the use of daylight in school buildings. In window design, it is important to make the distribution of brightness uniform. Concerning light shielding devices such as curtains, it is necessary to examine light transmittance and reflection characteristics to shield daylight appropriately and to prevent glare and a high luminance ratio. Additionally, it is necessary to consider a switch system for artificial lighting that can turn off light on a brighter side and illuminate a darker side.

 To reduce lighting energy in school buildings, environmental adjustment actions of the user also become necessary. In the trial to reduce the amount of artificial lighting, which collaborated with fifth-grade children, it was seen that the children understood the objective and importance, and adjusted the amount of artificial lighting and curtain use. As a result, it was indicated that energy savings from reduced artificial lighting could be realized if children were led to understand the proper light environment and the method needed to adjust the level of artificial lighting.

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Modern period is age of diversification about building construction method, spatial composition, function and so on, because of added various value on modern architecture. Previous study on renovation method for use modern architecture prevail in internal and external case. But when we adapt renovation method to existent buildings, the method plays different role. The role caused "added value". This study use flowchart for analyze relationship between existent part and new part on renovation. As a result, we defined 2 factors caused by progressing the modern renovation method; the context concerning with the purpose of renovation exists or not, and the diversity about view of existent part.

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The purpose of this paper is to study on the charaster of stage sapce and the way for arranging the size of flying system by investigating the 45 public multi-purpose hall in Aichi prefecture. The conclusion shows: (1) In public multi-purpose hall, the width of prosenium is wide, the depth of stage is narrow and the space of stage is not enough to turn large-scaled setting. (2) The way for arranging flying system of public multi-purpose hall was able to conjecture. (3) Arranging the concert shell is one of cause that flybar is only 1〜3 between electricbar.

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This study aims to clarify the relationship between seated area features and floor plan compositions of open reading spaces found in 55 Japanese public libraries completed since 2000. These elements are approached from the viewpoints of floor plan forms, bookshelves area arrangement, seated areas, and seating arrangements in seated areas. In particular, the statistical analyses of 792 seated areas – based on the nature of users’ coexistence with the viewpoints of socio-petal, socio-fugal, and side by side – eight types of seat arrangements in seat areas and the relationship between seat arrangement types and floor plan form types can be found.

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 Evacuation flow on the spectator stands of stadia and theaters which consist of complicated evacuation route, such as gangways and gate etc. are examined with the multi-agent evacuation simulator SimTread (MA model). Through those examinations, characteristics of evacuation flow are obtained which should be carefully considered when we make evacuation safety planning. Major results are as follows; 1) Evacuees tend to remain backward of the radial gangways. 2) Merging rate at the radial gangways, lateral gangways, and exit gates change according to the merging condition and with time. 3) The cause of characteristic observed in 1) is analyzed in mathematically. This characteristic is well approximated by multiplier effect of merging rate and adjusted calculation method is proposed. 4) Theatres of cinema complex which have pitched spectator's seats and have exits only lower area are needed careful consideration for the tendency that evacuees remain high place from the viewpoint of smoke exposure.

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This study follows the former paper titled "A genealogical analysis on the block plan of hospital architecture", and analyzes the planning policy of an operating theater in Japanese hospitals from genealogical point. After 50's the discussion concerning dividing clean zone from dirty space has begun, and "the adding vestibule type" and "the independence of instruments' space" has appeared. During 70's and 00's, enthusiastic discussion has been done. At first splitting the traffic of surgical instruments from other has been proposed. In this case, there are two types for the traffic of instruments, the one is clean instruments and the other is dirty ones. These concepts have created "the clean hall type", "the one way type", "the distribution hall type" and "the gathering dirty instruments corridor type". CDC guidelines for operating theater was published in 1999, a quite new concepts for designing operating theatre has started. At present, rational and efficiency facility design is focused, and the new design concept for long time surgical treatment for patients and personnel is pursued.

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 The influence of Le Corbusier (1887－1965) upon the architectural works of Kunio Mayekawa (1905－1986) has often been recognized in studies. Moreover, Mayekawa himself mentioned that he had been influenced by “Dom-ino (1914)” as Le Corbusier insisted. Having said that, among the “5 points of modern architecture (Les 5 points d'une architecture nouvelle, 1929)” reflected in principle by Dom-ino, only the roof garden was continued by Mayekawa throughout his design activities. If the roof garden in Mayekawa Kunio's works is the only method borrowed from Le Corbusier before, during, and after the war, we can obtain a new idea regarding the construction theory of Kunio Mayekawa by clarifying how Le Corbusier influenced his use of this element.
 I have used the drawing material and anthologies of Mayekawa Associates Architects & Engineers as my primary sources concerning the works of Mayekawa. I have considered the roof gardens included in Mayekawa's works from these primary materials, classified them into four periods based on existing studies, and thus understood each outline by period (Chapter 2). Next, I have analyzed the elements of the roof garden, upon which Kunio Mayekawa particularly focused at the influence of Villa Savoye (1932) and Unité d'Habitation de Marseille (1952), based upon the drawings and photographs by Kunio Mayekawa (Chapter 3). In addition, I have analyzed the influence of Le Corbusier upon Mayekawa's roof garden by considering the differences between, and similarity to, Mayekawa's roof garden and his interpretation of that of Le Corbusier (Chapter 4).
 As a result, I have clarified the following two aspects of Le Corbusier's influence upon Mayekawa's roof garden.
 1. Mayekawa continued to focus upon Le Corbusier's roof garden in his works and used those designs in Japan as a solution to the problems faced by society. In fact, Mayekawa's roof gardens have been compared to the works of Le Corbusier, each of which Mayekawa had visited. Mayekawa's roof garden can be explained by its relation to the Villa Savoye (1932) or Unité d'Habitation de Marseille (1952).
 2. Kunio Mayekawa's acceptance of Le Corbusier's roof garden showed particularly after World War II. In the first period after the war, Mayekawa referred to the style of the composition's elements established in the roof garden of Villa Savoye directly. In the second period after the war, he applied the organic style of the composition elements arranged in the roof garden of Unité d'Habitation de Marseille by abstracting it and making it geometric. In the third period after the war, by applying the relation between a hanging garden and a roof garden at the Villa Savoye to his own roof garden, he added visual indoor-outdoor continuity, as well as a strolling pathway to a roof garden in public buildings. Therefore, Kunio Mayekawa kept his eye upon Le Corbusier's work (which he experienced himself) in the creation of his roof gardens, regardless of whether he referred to their shape. Moreover, Kunio Mayekawa applied the elements that referenced spatial composition rather than referencing forms as he entered the late stage of his career.

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This is the report of an investigation and study into the storage in multi-purpose halls and the frequency of stage equipment use. In this investigation, we asked 495 halls where they store the stage equipment and how many times the stage equipment is used in a year. By this investigation and study, we aim to improve the storage in multi-purpose hall, which has not been given careful consideration on the hall planning for now.

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　建築家・坂本鹿名夫は，1950年代の後半に日本全国に数多くの円形建築を設計したことで知られている．
　本稿では，坂本の円形建築に関する既往の研究を整理するとともに，坂本の著作『円形建築』巻末に掲載された代表的な建築作品の建築概要一覧から概算直径を算出し，これと用途，設計完了年，階数などとを比較することで，坂本が大成しようとした円形建築の型を見出すことを試みた．
　その結果，実験段階であった当初は直径25mが主流，最盛期には直径26-27m，設計棟数の減少する熟練期には直径27-28mがそれぞれ主流であったことが明らかとなった．

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There are some telephone exchange office buildings which resemble "A PROJECT OF TELEPHONE EXCHANGE OFFICE" proposed by Mamoru YAMADA in design : the building of Hyogo, Fukuoka and Shimonoseki. This paper clarify that these building designs are mainly produced by Taiji MORI, Nobuo WADA and Akira UENAMI (under the direction of WADA) with the systematic design method accumulated at the Building Repair Section of the Ministry, and that their design attempts break with traditional character and provide the background of YOSIDA and YAMADA's first developements of Modern architecture. With this viewpoint, we estimate Mori's projects and his contribution to the architectural works of this Section.

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