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This chapter describes the construction and operation of a new concept in shared street design – the Pedestrian Priority Street (PPS). The PPS is a design concept and policy approach developed in Seoul, Korea. It specifically seeks to retrofit narrow and busy street networks to promote shared use and protect pedestrians. First the evolution of the PPS concept is described. This is followed by an account of the design, construction and evaluation of two pilot PPS projects in 2013, and a brief description of eight additional projects completed during 2014. The chapter concludes with some reflections on the future of PPS, including recommendations on strengths of the over-arching approach. Evaluation of PPS pilot projects shows that the general level of user satisfaction on treated streets was significantly increased and vehicle speeds were slightly decreased. Of note is that observation studies show a reduced incidence of pedestrians coming in risky proximity to vehicles. This indicates that the general possibility of pedestrian-car accidents decreased and a considerable change in driver behaviour. Other findings of interest relate to the need to involve the community in decision making about shared street design and the related need to design street treatments to reflect the surrounding land use. PPS in Seoul is reflective of a new era in shared street design and implementation, promoting streets as places to be, rather than simply thoroughfares to move through at speed. Its design concepts can be applied to any street, but will be particularly relevant to those seeking to retrofit narrow, car-dominated streets to be more balanced in their appeal to pedestrians as well as car users.

The purpose of this paper is to analyze walking activity and recent efforts at augmenting walkability conditions in the cities of Macau, Lisbon and Las Vegas.

The methodology consisted mostly of in-loco observations, pedestrian counts and extensive reviews of the literature, city plans and regulations.

The findings include the need to properly design, maintain and retrofit pedestrian facilities, while reducing safety conflicts among street users as well as the establishment and the nurturing of a culture of walking.

A fivefold international walkability research agenda with implications for other cities around the world is established: the value and the need for comparative studies and best practices; the need for urban design interventions; the cultivation of attractiveness and aesthetics; the implementation of safety, construction and maintenance criteria; and responsible funding programs.

This paper has twofold implications for stakeholders with direct responsibilities in the design, planning, building and maintenance of streets and public spaces, and for those who simply use those places at their own discretion.

A succinct set of recommendations include the need to augment endogeneity, the need to make cities for people and not for automobiles and commitment to resolving pedestrian safety concerns.

This paper discusses the factors affecting street vibrancy from both a stakeholder’s and a user’s perspective. The fundamental and inalienable right to walk is analyzed using the WPPFUS framework (walking levels, purposes, primacy of walking, facilities, unique features and safety concerns).

Properly planned road illumination systems are collectively a public wealth and the commissioning of such systems may require extensive planning, simulation and testing. The purpose of this simulative work is to offer a simple approach to facilitate luminance-based road lighting calculations that can be easier to comprehend and apply to practical designing problems when compared to complex multi-objective algorithms and other convoluted simulative techniques.

Road illumination systems were photometrically simulated with a created model in a validated software platform for specified system design configurations involving high-pressure sodium (HPS) and light-emitting diode (LED) luminaires. Multiple regression analyses were conducted with the simulatively obtained data set to propound a linear model of estimating average luminance, overall uniformity of luminance and energy efficiency of lighting installations, and the simulatively obtained data set was used to explore luminaire power–road surface average luminance characteristics for common geometric design configurations involving HPS and LED luminaires, and four categories of road surfaces.

The six linear equations of the propounded linear model were found to be well-fitted with their corresponding observation sets. Moreover, it was found that the luminaire power–road surface average luminance characteristics were well-fitted with linear trendlines and the increment in road surface average luminance level per watt increment of luminaire power was marginally higher for LEDs.

This neoteric approach of estimating road surface luminance parameters and energy efficiency of lighting installations, and the compendia of luminaire power–road surface average luminance characteristics offer new insights that can prove to be very useful for practical purposes.

Parking policy in the United States is dominated by zoning codes with minimum parking requirements stipulated for a variety of uses. Some cities have realized that this approach has not yielded the desired policy outcomes; instead, it may be causing unintended consequences including added auto-travel, dispersed development, congestion, and air pollution that cities now wish to mitigate.

This paper identifies historic and contemporary trends in United States’ parking policy as cities gain additional insight and embrace new priorities.

Three emerging trends in the U.S. context are identified: Rethinking zoning codes that require parking with development; introducing pricing to better manage curb resources thereby cutting down curb-space competition; and looking for urban design solutions to parking access, location and on-site placement which can lead to more efficient mode use decisions.

The chapter provides an analysis of cases showing how cities are now seeking alternative approaches.

After many years of policy intervention focused on the alleviation of parking shortages by requiring additional off-street parking, cities are now seeking alternative approaches.

Cities can learn from each other’s experiences. New paradigms in parking policy will lead to different social outcomes: they could increase the cost of auto use (disadvantaging the poor) but decrease auto dependence (favoring the poor).

The originality of this chapter is in the juxtaposition and analysis of trends that have, heretofore, had little exposure.

The purpose of this paper is to suggest the usage of the project finance (PF) scheme as a suitable mechanism to fund energy efficiency projects at the urban scale and present its advantages and adoption barriers.

A case study is developed to renew the traffic lighting system of an Italian town via replacement of the old lamps with new light-emitting diode (LED) technology. Several partners are involved in the case project to construct a viable PF arrangement.

The case study presents the viability of the proposed PF scheme that provides for acceptable financial returns and bankability. However, it also shows that the need for short concession periods may call for a public contribution to the initial funding to make the project more attractive to private investors.

This case study is a useful guideline for governments and promoters to using the PF arrangement to fund energy efficiency investments in urban settings. It helps designing an appropriate PF scheme and understanding the advantages of PF to reduce risk and, consequently, increase the debt leverage and profitability of energy efficiency projects.

This paper contributes to bridging the gap about the lack of works addressing the implementation of the PF mechanism in the energy efficiency sector in urban areas. The importance of this paper is also associated with the shortage of traditional public finance faced by many cities that forces to seek for alternate forms of financing.

The built environment has high potential to reduce overall greenhouse gas emissions and with around 1‐2 per cent of new buildings added to the total stock annually, the scope for reductions lies with adaptation of existing stock. Existing buildings comprise a variety of attributes and present challenges and opportunities with regards to adaptation and sustainability, and integrating retrofit measures that lessen energy, water and resource consumption.

Through a quantitative analysis of a Building Adaptation database, this paper addresses the questions; what is the nature of adaptations in relation to Premium quality office building stock in the Central Business District (CBD) and, what is the extent and scope for sustainable retrofits to Premium grade office buildings.

The nature and extent of adaptations to Premium office buildings are identified and quantified in respect of attributes such as adaptation level, building age, location, construction form, envelope, shape and height and operating costs.

The findings provide an insight for policy makers and others in respect of the nature and type of adaptations typically undertaken in Premium office buildings. The research identifies the typical attributes found in buildings undergoing adaptation and specifies the type of sustainable retrofit measures particularly suited to buildings with those attributes.

The research is based on an analysis of “all” office building adaptations from 1998 to 2008, which facilitates a unique study of what has occurred with regards to adaptation practices. From this starting point it is possible to determine where opportunities lie to capitalise on work being undertaken.

The purpose of this paper is to discuss the methodology and results of using thermography for pre‐retrofit (pre‐R:T) and post‐retrofit (post‐R:T) surveys undertaken to qualitatively assess retrofitted external wall insulation (EWI) on pre‐1919 existing dwellings with solid exterior walls.

This study involved undertaking qualitative thermography surveys before and after installation of EWI at two mid‐terrace dwellings in Swansea (UK). One dwelling was part of a whole‐street approach and the other was an isolated installation.

The two case studies have provided evidence of potential thermal bridges created as a result of an incomplete covering of EWI. Whilst overall heat loss appears to have been reduced, further evidence is required to establish the extent to which these thermal bridges reduce overall thermal performance.

Only two schemes undertaken in Swansea (UK) are represented in this study and are therefore not a reflection of EWI installations generally. Nevertheless, the study suggests more general concerns with the installation of EWI where a continuous covering of insulation cannot be achieved. Further research is required to assess the long‐term implications of thermal bridges on the condition of the dwelling and the health of occupants.

This paper has introduced and tested a pre‐R:T and post‐R:T methodology for assessing the thermal performance of deprived dwellings, which have had EWI retrofitted to solid exterior walls. By using the pre‐R:T and post‐R:T methodology the paper has demonstrated a visual method for illustrating problems in retrofitting EWI and highlighted improvements in thermal performance, which can be used by stakeholders involved in the maintenance and improvement of existing dwellings.

Green space increase in dense urban environments is a recurring goal of contemporary planning and policy making. Nonetheless, there is a need to assess the feasibility of concrete greening implementation in specific contexts. The purpose of this paper is to evaluate and discuss the environmental potential of green roofs in commercial neighborhoods with low green rates.

By studying shopping streets in Shimokitazawa, Tokyo, this research focuses on a commercial area featuring narrow streets, mid-rise buildings and a low amount of green space. A 25ha case study area was sampled and investigated from a morphological point of view, based on mappings, aerial photographs and on-site surveys.

Because of the peculiar morphological characteristics of Shimokitazawa, green roofs are a particularly suitable greening option. If all flat roofs in the case study area were retrofitted with green roofs, green space would increase from 4 to 27.7 percent. Moreover, the area’s carbon footprint would decrease by 2.6 percent.

While maintaining that each location has unique characteristics, the quantification of the environmental benefits of green roofs in Shimokitazawa could be generalized for a number of similar areas within Tokyo and Japan, being a reference for policy making and urban design guidelines.

The purpose of this paper is to ascertain whether energy retrofits need to be directed by public policy intervention or can be encouraged through tax relief that harnesses profit incentives. Existing office space potentially has an economic life of 25 to 40 years. It may be operating inefficiently compared to newer buildings for many years. Designing a market-based incentive system that encourages periodic remodeling which lowers energy usage and carbon emissions would have social benefits.

An owner/user case study is developed to test financial feasibility. The empirical study uses publicly available information to examine whether the variables modeled react as anticipated. The regression model incorporates variables of importance to an owner/user. Tax credits and energy deductions, interest rates associated with borrowing and likely electricity and natural gas rate changes are independent variables used to predict the dependent variable new non-residential private construction spending.

Investment tax credits (ITCs) coupled with lending has a positive impact on new non-residential commercial construction spending. The value of these benefits is not sufficient to encourage total building energy retrofits, but would encourage low-cost system upgrades. The interest rates associated with borrowing and the debt-service coverage ratio need to be kept low for existing building energy retrofits to be stimulated.

The case study provides a template that a business can use to determine the financial feasibility of a proposed energy upgrade. It enables the comparison of the marginal cost associated with an update to the present value of the financial benefits likely to be generated. Local real estate tax reductions linked to specific energy upgrades offered by many municipalities can be added to the expected energy savings generated by doing the retrofit.

Tax systems designed to solve environmental pollution problems do not require regulators, inspections or court case decisions and are inherently less intrusive to businesses. Coupling private financial incentives with public policy goals cause energy-saving technologies to be adopted more quickly and with less public outcry.

The paper specifically considers the factors that influence an owner/user of the property. Rental rates and vacancy losses do not influence a property owner/user. Prior studies looked at revenue enhancements and lower-vacancy rates possibly associated with a green compared to a non-green office building. These studies did not focus on the owner/user paradigm. They reported financial benefits accruing to property owners who lease the office building. Many retrofit studies tended to use CoStar Group’s data, which are collected by a for-profit company and sold to users. The data used in this study come from survey data collected by the Federal Government of the United States of America (USA). It is publicly available to all researchers.