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The purpose of this paper is to investigate the underground levels of a city to explore how vernacular and historic underground urban facilities help traditional cities to be sustainable. Therefore, the authors look at how culture, climate and economy affect those facilities.

The paper focuses on vernacular and local underground urban facilities in historic cities to find more sustainable processes of urban development that integrate cultural, climatic and economical concerns into design planning. The paper is based on a case study of the underground infrastructure of Dezful, Iran.

There are several vernacular building styles around the world, especially in Iran, with different shapes, materials, arrangements and concepts. Building construction has significant impacts on the environment and natural resources. Dezful is a city in Iran with a lot of potential in terms of its architecture. Vernacular cities possess infrastructure that helped them thrive in harsh climates. For instance, Dezful takes advantage of a systematic infrastructure termed the “Underground City.”

The traditional architecture of Dezful plays an important role in creating underground spaces, especially urban and architectural elements with thermal isolation properties that can be used as housing and as food storage. In this century, building construction could adopt these environmental properties, which could lead to low energy consumption in urban environments. Considering traditional and contextual elements in urban planning and design could revive sustainable community practices in urban environments.

Despite the title of this bibliography, there was not a truly underground press in the United States during the 1960s and 1970s. The phrase is amisnomer, reputedly coined on the spur of the moment in 1966 by Thomas Forcade when asked to describe the newly established news service, Underground Press Syndicate, of which he was an active member. The papers mentioned in this bibliography, except for the publications of the Weather Underground, were not published by secretive, covert organizations. Freedom of the press and of expression is protected by the First Amendment to the Constitution, although often only symbolically as the experience of the undergrounds will show, and most of the publications that fall into the “underground” described herein maintained public offices, contracted with commercial printers, and often used the U.S. Postal Service to distribute their publications.

Planning for underground spaces has become an effective way to use central areas in cities given the steady economic growth in China. The development of underground spaces in mountainous cities has satisfied the needs of the diversification of the city commercial areas and pedestrian movement. Safety issues exist because these underground spaces were originally used for civil air defense. This study was based on the underground commercial street in Chongqing, which is a typical mountainous city. Based on the results of combined fieldwork and survey, this paper summarized current safety issues, which include the not-fully-open exit, the imbalanced exit location, blocked evacuation routes, and the poor awareness of the potential safety issues. This paper proposed a framework of the safety factors for the underground space and synopsized prevention strategies that are specific to potential disasters in the underground environment. The framework comprises ensuring that the exits are fully open, the underground corridors are kept unblocked, the open space on the street is increased for disaster prevention, and equipment security is maintained and managed. At last, This paper summarized disaster prevention strategies, which include ensuring unimpeded exits, balancing the locations of the exits, avoiding blocks, increasing the disaster prevention square area in the underground space, maintaining and managing the security of the equipment.

The purpose of this paper is to use a series of disruptive innovations in the 150‐year history of the US lighting industry to test whether two key innovation management theories retain their explanatory power as market structures change.

Historical case studies of four successive disruptive lighting innovations are used: incandescent light bulbs, fluorescent light bulbs, compact fluorescent light bulbs (CFBs) and light emitting diodes (LEDs). Descriptions of each innovation include the new technologies, the evolving market structures, and how the innovating companies managed their risks during the transitions.

This paper finds that two contemporary theories on absorptive capacity and disruptive innovations retain validity and remain broadly applicable even as market structures change overtime from oligopoly and cartel to free market competition.

By juxtaposing historic incandescent and fluorescent bulb innovations in constrained market conditions with modern CFB and LED innovations in free market conditions, this paper expands understanding of the lighting history to include the past two decades. It also expands the applicability of innovation theories by showing that they apply to various and changing market structures.

Underground space is a valuable commodity — no less valuable because it is largely unseen. This space is especially valuable in towns and cities where land values are at a premium. The need for a study of these tracts below street level is becoming increasingly urgent, if only to assess the true value of this capital vested underground. Perhaps equally important to our consideration of it are the long term prospects for the vast service network buried beneath our cities.

This chapter estimates how minimum parking requirements increase the cost of constructing housing, office buildings, and shopping centers. It also explains proposed legislation to limit how much parking cities can require in transit-rich districts.

I assembled data on the cost of constructing office buildings, shopping centers, and parking spaces in eight American cities, and data on the minimum parking requirements in these cities. I then combined the parking construction costs with the number of required parking spaces for each land use to estimate how the minimum parking requirements increase development costs for office buildings and shopping centers.

Minimum parking requirements increase the cost of constructing a shopping center by up to 67 percent if the parking is in an aboveground structure and by up to 93 percent if the parking is underground.

In suburban Seattle, parking requirements force developers to spend between $10,000 and $14,000 per dwelling to provide unused parking spaces.

On a typical construction site in Los Angeles, parking requirements reduce the number of units in an apartment building by 13 percent.

To mitigate the high costs imposed by minimum parking requirements, California is considering legislation to set an upper limit on how much parking cities can require in transit-rich districts: no more than one space per dwelling unit or two spaces per 1,000 square feet (93 square meters) of commercial space. This legislation would limit parking requirements, but it would not limit the parking supply because developers can always provide more than the required number of spaces if they think demand justifies the added cost.

This chapter measures how minimum parking requirements increase the cost of housing, office buildings, and shopping centers in order to subsidize parking. Urban historians often say that cars have changed the city, but urban planning has also changed the city to favor cars.

With the increasing number of creative cities as well as the reported incidences of deterioration to physical heritage, this paper aims to protect silent identities of heritage from the ruining living identities of modern generations in current and futuristic creative cities.

The research aim is achieved through trait-related mixed methods, since the variances are not method-related, to answer three research questions. The first method was a survey questionnaire distributed to the creative architectural sector because it was the best sector to meet the identified criteria. It aimed to answer if the upperground layer in creative cities considers the underground layer's diversity as a main cause for heritage deterioration and for being a barrier to developing creative solutions. A hypothesis for the first question was tested through a t-test. The second method was to study cases of heritage in present and futuristic creative cities to answer if living identities threaten physical heritage of all ages at the same extent and if the same creativity concepts are applied to all heritage.

The underground layer's diversity identities were found as a major barrier to the creative architectural sector. The R-value indicated a negative relationship between heritage age and its condition. Cases witnessed different creative expressions, but cases within the same period faced similar concepts of expressed creativity. The proposed tree diagram is a framework that gives numerical guidelines for the interrelationship between every heritage age and creativity concept for novel and conscious creative practices at the upperground layer to solve the conflicts in creative cities.

The selection of Egypt does not possess a limitation because methodological considerations required for generalising the findings to a broader area were met. Findings in this paper are applicable to all upperground creative sectors that seek to understand the underground layer's diversity. Results are useful for protecting heritage silent identities in all existing and futuristic creative cities in countries that have heritage, of any age, facing deterioration.

The research work in this paper is novel in thought and resolves a perpetual conflict between silent identities and expressive living identities in current and futuristic creative cities through the proposed numerical framework for the upperground creative layer to develop novel conscious solutions. This framework represents a novel synthesis that adds to the existing body of knowledge, as it resolves a critical problem highlighted in previous research studies.

India is a rapidly urbanizing developing country with a population of 1.4 Billion. Indian governments have invested USD 50 Billion) in metro rail projects in 18 cities. Metro constructions are multi-stakeholder mega-projects and are prone to a variety of risks. The purpose of this paper is to analyze the risks involved in metro rail construction projects in a densely populated developing country for two types of systems and from two perspectives. Current literature lacks an understanding of similarities and differences in the risks involved in underground and elevated metro projects from clients' and contractors' perspectives, which the paper highlights.

A total of twenty-five risks were identified, categorized and assessed through experts' opinions about the impact and probability of occurrence of the risks through a questionnaire-based survey. The survey respondents included experts in metro rail construction from client and contractor sides. Paper uses a Fuzzy Inference System to calibrate risk magnitude from occurrence probability and impact.

A notable difference was observed in the views of clients and contractors, except for certain common risks. Both stakeholders had different risk perceptions for the underground and elevated metro rail systems.

This study contributes to the risk assessment for different types of metro systems. This research can help policymakers as well as consultants in prioritizing their risk management strategies in developing countries like India.

Highlighting the critical aspects of risks in metro projects in a developing country, this paper also provides system-based and stakeholder-based comparative aspects of risk analysis.

The Department of Information Science of the Heinrich-Heine-University in Düsseldorf is currently conducting a research project on Informational World Cities – the prototypical cities of the knowledge society, which have been growing in the twenty-first century. In total, 31 potential Informational World Cities were identified and a set of criteria was developed to evaluate the degree of informativeness of a city through coherent criteria. The purpose of this paper is to investigate London.

The investigation was based on the Grounded Theory, ethnographic field research, interviews, bibliometrics, patentometrics, official statistics and the analysis of web content. During the stay in London, eight semi-standardised interviews according to SERVQUAL were conducted.

The characteristics of an Informational World City are well-marked in most cases, especially London’s knowledge infrastructure. Furthermore London places value on smart innovations and tries to adapt public transport to the growing population. This includes, next to an enhancement of the train capacities, information and communication technology, since the digital infrastructure keeps gaining importance. The ethnic/cultural diversity as well as the international connectivity and the creative infrastructure are also distinguishing marks of London. Nevertheless, especially the digital and smart infrastructure require enhancement. London’s government is ambitioned, though, to make progress and pursues plans which are of benefit to the city’s informativeness.

This paper gives insight into the characteristics of the prototypical city of the upcoming knowledge society.

This paper follows an interdisciplinary approach and combines information science, urban studies and sociology to analyse cities of the knowledge society. Furthermore it is the first time that London is considered an Informational World City in an empirical study.