Preservation Of Architectural Heritage Research Articles

Use of Innovative Tools and Techniques for Heritage Preservation in the Digital Era: Academic Research on Asaf Khan’s Tomb in Lahore

In today’s digital era, as resources diminish and globalization provokes more regimented situations, innovative technologies such as parametric modeling, Building Information Modelling, 3D printing, and 3D scanners present dynamic answers for conserving and preserving traditional buildings. The main aim of this research is to explore digital technologies and tools to indicate how they can be of assistance in heritage preservation. Moreover, it also aims to identify the techniques that can make this laborious process more efficient and precise. All around the world, heritage sites are brought to life with the help of augmented models. This research highlights the digital methodology, tools, and techniques not fully explored due to limited funding and opportunities but present here as the evolving concept in the field of heritage conservation. It is more about the examination and investigation of the preservation process with the help of digital technology. It also explores the extent of possibilities and opportunities these digital tools can provide. Digital techniques and tools are extensively used within the traditional heritage internationally. However, Pakistan is still lagging behind in this domain. This study reconnoiters the impending uses of digital techniques in preserving architectural heritage and highlights how simple usage of these instruments can make the whole process more efficient and convenient. The outcomes specify that these tools provide many advantages over the traditional methods of conservation and have proved to be more useful and accurate. The application of photogrammetry to create models of old structures is also discussed. Moreover, the creative use of these tools to develop cordiality to original structures without replacing or damaging them is explored. This paper examines the application of these cutting-edge technologies for the preservation of architectural heritage in Pakistan with specific reference to a Mughal era structure in Lahore, that is, Asaf Khan’s Tomb. Despite the rich architectural heritage of Lahore, there is no proper conservation methodology currently practiced to preserve it. The above mentioned structure was surveyed, documented and the then-current situation was modeled using different softwares including Building Information Modeling in Revit. For the climatic and solar analysis of the structure, Ladybug which is a Rhino plug-in was explored and Microsoft Form it was used for the detailed solar energy analysis. 
 Keywords: building information modeling, digital tools and technology, heritage conservation, photogrammetry

RESEARCH ON THE DIGITAL RETENTION MECHANISM OF TIBETAN BUDDHISM ARCHITECTURE BASED ON UAV AND TLS: A CASE STUDY OF BAOGUANG HALL

Abstract. Tibetan Buddhist architecture embodies ancient Chinese architectural culture and religious culture. In the past, the information retention mechanisms for ancient buildings were implemented as photos, tracings, and rubbings, which cannot fundamentally document the authenticity of architectural heritage. To explore the digital retention method for the unique style of Han Tibetan architecture，this research that based on the idea of reverse documentation first collects point cloud data with the technical support of unmanned aerial vehicle (UAV) photogrammetry and terrestrial laser scanner (TLS) and then uses registration method to obtain the integral of the point cloud model of Baoguang Hall. This paper explores the possibility of extracting 2D and 3D information, such as architectural plans, facades, decorative components, and models of the temple architecture, by processing point cloud data. Finally, this study proves the feasibility of using digital technology for the preservation and protection of architectural heritage.

Awareness of preservation of historic buildings and sites in Ghana: the case of residents in Kumasi

PurposeThis study focuses on historic buildings and site preservation (HBSP), which forms part of cultural heritage amidst rampant demolishing and seeming neglect of such heritage in Ghana. The purpose of this study is to assess public awareness of the importance of HBSP in Kumasi.Design/methodology/approachThe study combines qualitative and quantitative research methods. Primary data were collected through questionnaires and interviews based on a purposive sampling technique. Respondents were residents of Kumasi.FindingsThe study revealed that awareness of the importance of HBSP is dependent on the demographic variables. The young generation below 30 years seems more aware of the importance of HBSP.Research limitations/implicationsThe study is limited by the fact that respondents were not willing to reveal income levels. Laws governing cultural heritage, including HBSP at the MMDAs, was not studied in detail and could be an area for further research.Practical implicationsThis study brings out the need to be aware of the importance of HBSP and train staff to enforce laws governing HBSP in six metropolitan, municipal and district assemblies (MMDAs) as part of Ghana's urban regeneration. This study further raises awareness among residents for sustainable architectural heritage preservation in Ghana.Originality/valueThe concept of HBSP is not popular in Ghana. This academic paper apparently assesses the level of awareness of the importance of HBSP among residents in Kumasi with an aim to identify and train staff of MMDAs on laws governing HBSP.

Light Design of Small Towns’ Coastal Areas

This paper touches upon the problems of development and illumination of small Russian towns located on the banks of rivers and water storage basins (as exemplified by master’s theses). These problems lie on the plane of preservation and effective use of architectural, historical, and cultural heritage of towns, their unusual aura and colour. In the experimental project of town development based on the town of Yurievets situated on the bank of Volga water storage basin, the authors propose an architectural-spatial functional concept of filling up the town territory with the ideas on original colour and light design in the evening and at night.

Formation of new approaches to the research practice and preservation of architectural and archaeological monuments of the North Black sea area (Comparative castellology and digital technologies)

The article is dedicated to the investigation of the current tasks of the modern study and preservation of the architectural and archaeological heritage of the peoples of Eastern Europe in the North Black Sea area based on comparative castellology and digital technologies. The comparative analysis of two outstanding monuments - the Belgorod fortress in the western part of the region and the Tyagin fortress in the eastern part, which historically go back to the history of the Moldavian and Grand Lithuanian principality of the XIV-XV centuries, is made and general trends and features in the planning structure and the architecture of the monuments are considered. The positive results of the work of scientific teams, representing scientists from different countries of the world united by special projects to study outstanding monuments, the use of modern methods of studying architectural complexes, including modeling individual objects and creating computer models of monuments in general, are presented. Questions were raised about the need for joint efforts for the preservation and tourist use of the cultural heritage, the development of good neighborly relations between the countries of the Black Sea region and Europe as a whole.

Use of Augmented Reality in the Preservation of Architectural Heritage: Case of the Aqueduct Kuru Kopru (Kayseri, Turkey)

Purpose The architectural preservation embeds all the activities dealing with the sustainability of the built heritage. The representation and diffusion of heritage take a core place in that process. This study aims at the diffusion of the Aqueduct Kuru Kopru towards a broad public audience, establishment of the awareness that Augmented Reality (AR) methods can be used for the evaluation and presentation of the semi-collapsed structures and serving as a model for the representation and diffusion of virtual reconstructions of Architectural Heritage (AH). Design/Methodology/Approach This work refers to restoration and heritage visualization charters, combines Computer-Aided Design (CAD), photogrammetry survey method, and advanced texturing techniques to acquire and model virtual reconstructions of the Aqueduct Kuru Kopru from the Roman-Byzantine period to the year 2017. The paper also describes the frameworks for the implementation of a non-immersive and an immersive AR application to visualize modelled reconstructions. The method used consists of three main stages: modelling of the virtual reconstructions, texturing of models, and development of AR applications. Findings This study establishes AR and cultural heritage digitization techniques as efficient tools to represent and diffuse the Aqueduct Kuru Kopru. It engages a broad public audience in better comprehension and assessment of the aqueduct. Research Limitations/Implications The fact that the research is based on a single case study is a limitation for its generalisation. However, the case examined provides a basis for future work that may validate its findings in different contexts. Originality/Value The paper proposes the rediscovering of long-abandoned aqueduct Kuru Kopru by learning its spatio-temporal evolution through AR. The developed methodology can be easily implemented and puts forward the use of low-cost materials.

PALACES IN VINNYTSIA REGION: PROBLEMS OF PRESERVATION AND INVOLVEMENT INTO MODERN CULTURAL LIFE

Nowadays the issue of preservation and actualization of historical and architectural heritage in Ukraine is acute. It is important not only to preserve some sights but also to promote their development and adaptation to modern requirements. The palaces of Vinnytsia region, which began to be actively built at the end of the 18th century, have significant potential in this process. Throughout their existence, many palaces had different owners, who were modifying the appearance of the buildings. During the nineteenth century, there was a variety of architectural styles, the dominant of which was classicism. In the process of political and socio-economic changes in society, palace complexes acquired a new meaning and functions. From the beginning of the twentieth century, palaces were used not for their original purpose, which caused their decline today. There are about forty venues of various degrees of preservation on the territory of the region. The irrational use of palaces remains a problem. The integration of historical and architectural landmarks into the life of society involves a comprehensive approach. An effective method to restore and preserve palaces is revitalization, which is to return lost functions or provide new ones to the venues.

FREE SPACE AS AN ELEMENT OF OPEN-AIR MUSEUMS’ EXHIBITION

In the area of architectural heritage preservation, the leveling of monument objects’ environment is an important problem. The essence of the monuments is laid not only in their material structure but also in a historically formed environment and spatial configuration that exhibits their historical and cultural content, enriches artistic properties.
 Open-air museums are specific institutions that are characterized by the use of not only monumental volumes and structures but also the free space between them. Cultural landscapes - lands of estates and residences, parks in palace ensembles, territories of monastic complexes, industrial landscapes, memorial places, and archaeological complexes become elements of the exhibition. Features of exhibition space organization in open-air museums are not sufficiently highlighted in scientific literature.
 Depending on the selected exhibition concept, a set of activities of the museum is determined and the museum zoning occurs. The use of free spaces is divided into two levels depending on the scale – urban planning and architectural. The urban planning level is responsible for the environmental design of the overall space of the ensemble or the complex of monuments. The architectural level of open-air museum formation envisages the organization of existing buildings, structures, and areas between them.
 On the urban-planning level, it is important to ensure the convenience of the visual perception of the complex: to reveal the most interesting fragments of the environment and visual connections, to emphasize the basic aesthetic, associative, symbolic, and practical properties of cultural landscapes within the open-air museum. On the architectural level of organization, free spaces become the basis for many activities - various educational, cultural, and entertainment events.
 Free space in museums serves as an exhibit, an element of activity processes and various events, and also serves as a basic tool for detecting and emphasizing the characteristic features of exhibited complexes and ensembles.

Problems of preservation of architectural and urban heritage of the historical village of Lahij in Azerbaijan

Introduction. Among the historical towns and settlements of Azerbaijan, the village of Lahij is one of the unique. Highly developed crafts, especially copper production, blacksmithing, and carpet making glorified Lahij masters not only in Azerbaijan but also abroad. The peculiar planning structure and architecture of Lahij were formed under the influence of craft production. Unfortunately, like many ancient settlements, Lahij is facing degradation associated with the socio-technical processes of modern civilization.
 Materials and methods. The paper uses theoretical analysis of scientific literature, graphic materials, and written sources. Research methods are based on systemic, spatial, and socio-functional approaches.
 Results. This article analyses the current state of the identified problems threatening the architectural and urban environment of the village of Lahij. Consideration is being given to ways of reviving craft production which is directly related to the architectural and construction tradition of the village. The article emphasizes the crucial role of tourism in the life of Lahij and its residents, noting also the danger posed by the growth of tourism.
 Conclusions. Based on the experience of preserving the environment in foreign historical towns, the author suggests using modern approaches in solving problems related to the management and use of the historical and cultural heritage in Lahij. Attention should be paid to the complex solution of problems considering architectural and urban planning, socio-economic and administrative-managerial issues.

Scientific and practical aspects of preservation of architectural and urban heritage in the development of modern architectural and restoration education

The historical, theoretical, scientific and practical aspects of architectural and restoration activities, which have observed in the aspect of the formation and development of architectural restoration education in Ukraine are considering within the article. Training issues of restoration specialists of real estate consideration is an important area of architectural higher education due to the need to replenish personnel for the development of scientific-, design- and professional activity spheres. The interdependence of the spheres of science, practice and education is a necessary condition for the preservation of cultural heritage, which currently exists as one of the important indicators of the state's cultural policy. The problem of mastering the architectural and urban planning heritage consists in the need to consider two opposing tendencies: the protection of the primary uniqueness of an architectural monument and the development of a historical urban environment with the involvement of modern architecture techniques, as a result of which historical authenticity is gradually lost and the urban environment is acquiring an increasingly universal and international character. In contemporary architectural design this problem is solved at the stage of developing urban planning documentation and detailed plans for the territory of historical areas, considering the system of restrictions on architectural and urban planning activities in the protection zones of cultural heritage objects of different use modes. The educational programs of the KhNUCEA Department of Reconstruction and Restoration of Architectural Objects have been developed considering professional competencies, aimed at mastering the world experience of achievements in the field of architectural and restoration education while maintaining the traditions that have developed over the years of the architectural education existence in Kharkov. The Department of Reconstruction and Restoration of Architectural Objects, formed in 1996, has united in its team specialists with experience in scientific and practical activities in the areas of urban planning restoration, restoration of architectural monuments, architectural archeology, reconstruction of historical objects.

Documentación 3D para la conservación del patrimonio histórico: el castillo de Priego de Córdoba

<p class="VARKeywords">One of the main objectives of heritage management policies is to promote measures aimed at the maintenance, restoration and enhancement of cultural and archaeological assets. To guarantee this, the responsible institutions must promote actions for the dissemination and transference of cultural heritage, as well as promoting actions with the greatest possible rigour, developing scientific and technical studies that support and improve intervention methods. Recent technological advances in fields such as photogrammetry, digital terrestrial scanning and 3D modelling have made a significant contribution to the digital preservation and dissemination of architectural heritage.</p><p class="VARKeywords">European administrations, in their desire of regional development, as well as the central or local governments have notably boosted the recovery of their rich and diverse heritage. A particular case is Priego de Cordoba’s Castle, a stronghold which was one of the most important monumental icons of the Andalusian period.</p><p class="VARKeywords">Currently, this site is the main target of many architectural interventions and a model due to the implementation of last generation techniques in digital preservation. The local archaeological department promotes a large number of interventions and archaeological excavations. This has made a priority to get a qualitative geometrical 3D documentation, and therefore a constantly updated the point cloud (xyzRGB).</p><p class="VARKeywords">This paper is focussed on presenting the results of the digital preservation process through 2D planimetry obtained from photogrammetric technics, 3D models, and geospatial data. These techniques are a previous step to large architectonical intervention planned in Priego de Cordoba’s Castle, in particular, the identified structures as Wall 1 and Tower 1.</p><p class="VARKeywords">Two out of the three studied structures can be found in Wall 1. They correspond to a cobblestone pavement located in the rampart of the Wall 1, which is a post-medieval period; a double-stepped semi-underground path, excavated in the infill of the wall. The third structure studied in this paper consists of a well, which drills vertically the infill of the wall of the Tower 1. This feature is interpreted in the last research as a vertical well to place the weights of the clock sited in this tower until the 19th century.</p><p class="VARKeywords">This work combines two techniques of geometric documentation to obtain a more complete point cloud. The terrestrial laser scanning, and the photogrammetry due to the higher colour performance, along with the completion of the point cloud obtained with the laser scanner. Along with this study, we will analyse the features which will better define the best technique to fit the documentation of the different structures. Their geometric characteristics, the incidence of sunlight or the accessibility will condition the use and choice of the technique.</p><p class="VARKeywords">We have stated that there is software nowadays which makes it easier to access and consult the information through new computing hardware. Besides, we have highlighted the importance of knowledge and synergy from the different stakeholders implied (city council, technological centre and private companies). The final goal consists of making the society aware of the capital importance of digital preservation as well as dissemination of science.</p>

Improving the technical knowledge and background level in engineering training by the education digitalization process

The modern technical education digitalization implies an increase in the role of the information component in the training of students. At the same time there is a certain gap between the modern technologies training and the understanding of the fact that construction industry is the mixture of historically formed features and the current state of the industry. Nowadays construction industry is under continuous technical development. The main danger of an insufficient attention to the special aspects of the construction development is the neglect of the preservation of cultural background and architectural heritage, which can be observed in the modern life. The article deals with the issues of improving the effectiveness of the educational process of students by introducing into the educational training process not only modern methods of designing building structures, but also the issues of understanding the history of the emergence of individual construction objects. The construction object can’t appear out of nothing. All constructive solution is preceded by a historical situation the situation of cultural and architectural heritage. However, there is no discernible connection between technical education and the humanities and social sciences. The authors use historical examples to justify the need for the use of elements of the humanities by a teacher of a higher technical educational institution with the introduction of the capabilities of modern digital information modeling technologies.

From Point Cloud to HBIM to FEA, the Case of a Vernacular Architecture

The preservation of architectural heritage represents a major asset for economic development in several countries. Nevertheless, its protection remains a complex task due to its high vulnerability, especially in seismic zones. The intervention on the historical buildings requires the creation of a numerical and digital support shared by the different building specialists (architects, conservators, engineers, designers), which can contain all of the data relating to the construction. This will allow to ensure not only a better interchangeability between the different disciplines but also a correct and coherent conception and execution of the interventions. The introduction of 3D digitization tools, particularly the 3D laser scanner, plays a major role during the realization of the architectural survey. Indeed, the use of the architectural modeling software based on Building Information Modeling and Non-Uniform Rational Basis Spline allows first of all to move from the point cloud to an accurate 3D numerical model exploitable for various types of analysis, such as structural analysis, building archeology analysis, and thermal analysis. We propose through this article an unprecedented application of the 3D laser scanner on an example of vernacular architecture, constituting a truly unique type of “Medina.” The object of the study is an aggregate composed of five houses, falling inside the Kasbah of Algiers, which since 1992 has been classified as “universal heritage” by UNESCO. The architectural survey is followed by a demonstration of numerical modelling based on 10 grades of generation using two categories of software founded mainly on Building Information Modeling and Non-Uniform Rational Basis Spline. Two kinds of numerical models are obtained: a first architectural model will be exploited during the building archaeology principally based on the 3D scanning results and a second structural model that will be used for structural analysis through a Finite Element Analysis software.

DIGITAL TECHNOLOGIES AND 3D-MODELING OF URBAN PLANNING (THE TOMSK CASE STUDY)

The paper studies the use of digital technologies and 3D models of cities in solving urban planning problems. The experience in creating the information system for ensuring urban planning and internet sites in Tomsk is demonstrated and the possibilities are shown for their use in graphic-analytic research. The 3D model of the Tomsk-city is proposed to design and explore the flood processes, land use non-observances, architectural design and modeling of the urban environment, and requirements for the architectural heritage preservation.

The Reflection of Interreligious Coexistence on the Cultural Morphology of the Grand Omari Mosque

Religious monumental buildings testify to ancient history, past civilizations, and different religions. Therefore, many countries are keen to protect their monuments in various ways. History has seen many wars and conflicts among religions to extend their control over one another, reflected in their attempts to destroy religious buildings or obliterate their features. Contrastingly, areas that experienced interfaith coexistence have survived due to the smooth implementation of architectural conservation. The current research investigated the extent to which religious coexistence has affected the preservation of architectural heritage by analyzing the urban and architectural morphology of the Grand Omari Mosque in Gaza. The research applied the descriptive-historical analysis approach to identify the urban and architectural components of the mosque that have changed or have been preserved due to peaceful interreligious relationships. The research found that Islamic, Christian, Jewish, and pagan architectural elements still exist in the mosque. In each era, people preserved these elements due to the coexistence and acceptance among the religions. This resulted in the preservation of thousands of years of architectural heritage, thus preventing it from obscuration or distortion.

Gradačac Old Town Complex - Current State Evaluation

In the protection of historical heritage evaluating the current state of a facility is a very important phase since it provides for the project framework and the decision-making guidelines, which is all crucial for the final goal – protection of Gradačac Old Town complex. There are several historical layers encompassed by Gradačac Old Town - starting from the medieval fortification system, expanding to the Ottomans’ period where main buildings (a residential tower, a clock tower, and a mosque) were added by the Ottomans, extending and continuing the works on adding a library and a gymnasium in the Austro-Hungarian period. The overall Complex flows with the natural morphology of the terrain; nowadays these green areas are used as the main city park. Complex of Gradačac has two separate fortification zones, the main area of around 33 000 m2, and the accentuated part with the tower, of around 3 000 m2. The fortification (The Old Town) ground plan is approximately a square one, with sides from 180 to 200 m, consisting of the two main parts: The Lower and the Upper City. In the north-west area, there’s the Upper City (fortification inside the fortification, namely Husein-Captain Gradaščević’s Tower). The Old Town is accessed through three gates: The North (the main gate), the South, and the West gate. Upper City with Husein-Captain Gradaščević’s tower is positioned on the topmost point in the north side of the fortification complex. It rests on a terrace which encloses it from the south and the east side. On the north side of the Upper City, there are outer perimeter walls constituent to the whole of the Complex. Architectural heritage preservation and valorisation are increasingly important social and economic issue in many countries. The issues encountered in these undertakings range from defining and choosing required level of safety, via the question of electing methodologies relevant for contracting reliable structural analyses and safety check-ups, up to choosing the design and installation of suitable materials, and the intervention.

The implementation of energy saving policies and their influence on energy use and cultural values in the housing stock of Sweden

Introduction: The overall objective is to understand how policies may be used to increase the potential for saving energy while simultaneously preserving cultural values in the housing stock. The project contributes to SDGs 11, 17, 5, 8 and 10. Methods: The paper summarises and discusses findings in previous research and projects led by the authors. Finally the design of a new project launched in 2020 is presented. The purpose of Energy efficiency and cultural values. How well do the policies function on the local level? is to give valuable knowledge on how the building process, advice on energy use and renovation strategies work together in Swedish municipalities. Results: Since the 1970s there has been a conflict between the preservation of architectural heritage and decreasing energy use in the Swedish housing stock. The first policy programme focussing energy saving was launched after the first global energy crisis in 1973. Since then there have been different policies addressing the issue of energy use in housing. The knowledge of how to carefully renovate existing buildings has increased, but the incentives for cutting energy use further has diminished among property managers. As a consequence, there is very little renovation aiming at energy efficiency, which challenges the national goals of lessening the impact on climate change. One problem may be an incoherent and inefficient implementation of policies dealing with the preservation and the energy use of the built environment. Conclusions: The antagonism between energy efficiency and cultural heritage that emerged in the 1970s has changed in character. Above all, increased energy efficiency seems not to be a very strong force when designing renovation projects in homes. If Agenda 2030 goals of accomplishing a well-built environment that does not require unsustainable practices to be sustained are to be reached, new policies will be required. Grant support: The research has been supported by the Swedish Energy Agency (grant #50041-1).

Regional tradition in the architectural culture of Nizhneye Povolzhye (by the example of the Volgograd region)

The article considers issues connected with the co-existence and intensive cultural interaction of indigenous population and migrants, nomadic and settled population, as well as spreading of the world’s religions in the Volgograd region. The territory of the examined region enjoys a great cultural heritage connected with a unique history and traditions and many creeds The most significant objects of historical and cultural heritage of the Volgograd region are highlighted in the article, with their characteristic features given. The problem of the architectural heritage preservation has been touched upon, too. It is regarded not only as an aggregate of objects which need to be preserved physically, but also as an essential factor of mutual understanding of peoples in the contemporary restless world. In many respects the deciding point for preserving architectural heritage is the level of knowledge about the culture of a certain region, which directly promotes solving a problem of inter-confidence between peoples. Today it is possible to solve the problem of strengthening interethnic peace and interfaith harmony through acquaintance with the culture and traditions of the non-settlement of the region. That is why the issues under consideration in the article seem vital under present conditions.

Influence of architectural heritage on the identity and present-day value of American-designed universities\u2019 campuses in Asia

In this study, through case studies of campus architectural heritage, the preservation of architectural heritage on campuses is explored. In addition, the effects of architectural heritage preservation on the identity of campuses are investigated, and the corresponding effects on present-day value and spatial experience are analysed. The case studies involve early campuses planned in East Asia by Henry Murphy, and they feature American designs and building styles.In this study, first, the characteristics of the campuses planned by Henry Murphy are analysed. Next, the characteristics of the preserved architectural heritage at Chosen Christian College are analysed. Finally, with a focus on the preservation of architectural heritage at Shanghai College, the value of architectural heritage and the spatial experience associated with campus development are analysed.Chosen Christian College focused on maintaining the authenticity of buildings, and Shanghai College attempted to consolidate the identity of the campus through maximizing the spatial experience of the architectural heritage group and preserving architectural heritage. Thus, Shanghai College was more influenced by Henry Murphy’s master plan in the development and growth of the campus, and tried to carry on the design concept of the architect and the image of the campus. Conversely, Chosen Christian College was able to retain its original design over nearly a century with the use of all-stone buildings, as Henry Murphy proposed, but no significant trace of the early general plan remains.

Traditional building techniques in architectural conservation and restoration: the experience of Casa de Oswaldo Cruz in the preservation of the Moorish Pavilion

The methodological and pedagogical dimensions of traditional construction techniques in the safeguarding of cultural heritage properties are discussed from the perspective of their contribution to the national policy for intangible cultural heritage, focusing on the conservation and restoration work developed for the Moorish Pavilion by the Department of Historical Heritage of Casa de Oswaldo Cruz. A discussion is presented of the need articulation between the history of construction systems and technological contexts, and the application of contemporary methodologies for the preservation of architectural heritage, including educational processes, and for professional training, for the transmission of knowledge.