Category: Research papers for built environment

Finding ways to help people understand universal design is not easy. Many have tried by creating frameworks, policies, and guidelines. Many have stayed with the 7 principles of universal design, now thirty years old. Some have used these principles as a checklist for implementation or evaluation. Others have attempted their own definitions and explanations. So it’s good to see a a useful and thoughtful evaluation framework for understanding and implementing universal design in the built environment.

Mosca and Capologo have developed a universal design framework for the built environment that is up to date with current thinking. It encapsulates physical, sensory and social qualities of the environment. The background research for the framework included stakeholder input. This takes it beyond access compliance and evaluates aspects such as user convenience and social inclusion. 

Three key elements or universal design categories:

1. 1. Physical-Spatial Quality: the capability of the environment to foster easy, comfortable, functional, and safe use of space and objects. This means being able to physically interact with a system;
   2. Sensory-Cognitive Quality: the capability of the environment to foster orientation, comprehension of the service, and comfort of users. This refers to the features that impact peoples’ senses and cognition;
   3. Social Quality: the ability of the environment to enhance well-being and inclusion. It considers emotional stimuli and social integration among users.

The framework is about performance and assessing the quality of the built environment beyond access. Mosca and Capologo used 21 indicators and 8 main criteria in their work. 

The title of the article is, Universal Design-Based Framework to Assess Usability and Inclusion of Buildings. It is pleasing to see a framework that includes a human centred design and co-design approach. 

From the abstract

Universal design offers a set of principles in design practice to meet the needs of the vast majority of a population. However, there is a lack of an accountable approach to measure and analyze the built environment with a universal design lens. This study aims to develop an evaluation framework to assess UD in public buildings to determine, in addition to accessibility requirements, the usability and inclusion of projects for different users.

Multicriteria Decision Analysis (MCDA) was adopted as research methodology to systematically and scientifically develop the framework. 

We devised a hierarchical framework consisting of three main categories of universal design (physical, sensory, and social), eight criteria (usability, functionality, safety/security, wayfinding, understanding, environmental factors, well-being, and social inclusion), and 21 indicators.

The proposed framework can be considered as an innovative approach in the field of accessible design evaluation since it explores the relation among a multiplicity of aspects, including human performance and social factors, to evaluate the quality of UD buildings

Editor’s note: I’ve seen a lot of attempts at frameworks and this is one of the best so far. Yes, universal design is evolving.

It’s not just the buildings or landscaping that make cities – the spaces in between matter too. These is where the social aspect sits. Blue and green infrastructure and public art are important factors and it’s universal design that joins the dots for urban design.

Landscape architecture, green/blue infrastructure, artistic strategies and universal design work together for attractive and safe public areas. This is the proposition in an article in the latest issue of Urban Planning. The key point of the article is “in-between spaces” and how to transform them.

The article’s theoretical framework is about the relationship between the elements of the city. Tools for public space are also discussed, with universal design acting as a tool for merging the city. This is because universal design brings benefits to everyone – social and physical.

The article concludes with case studies and solutions for connecting “social tissue”.  Cities are constantly changing and should planned as such. 

The title of the article is, The Changing Nature of In Between Spaces in the Transformation Process of Cities. This open access article is also on ResearchGate.

From the abstract

In the in‐between spaces of cities, there are many problems: functional, spatial, economic, environmental, visual, and social. The article explores the possibilities of solving existing problems and the possibilities of using the potentials of in‐between spaces with regard to the changing nature of a city.

The article, of a discursive character, aims to answer the questions of whether connecting a city with public spaces can be a catalyst of changes, and what tools should be used to facilitate the flux of material factors (like goods or natural resources) and immaterial matter (e.g., ideas or cultural patterns).

The new approach assumes this would be most effective when using landscape architecture, green/blue infrastructure, artistic strategies, and universal design in public spaces. The expected result of the research is to show the purposefulness and possibilities in creating attractive and safe public areas of in‐between spaces as an on‐going micro‐ or macro‐process of urban change on a wider scale.

It was recognised that integrated actions combining the humanistic, ecological, and technical approaches could bring significant benefits to society, preventing existing problems, not only spatial and visual (changing the city directly), but above all social and environmental, having an impact on the functioning of the city from a much longer perspective.

The results show how the transformation process of public spaces may change the nature of the cities. Also how it improves the compactness of existing cities, and increases the quality of life. Selected case studies illustrate the scale, scope, and benefits of possible actions.

 

Visual contrast, or luminance contrast, is a key feature of universal design, but how well can we measure it? It’s a mainstream issue and something designers need to consider from the outset. It’s one thing to know the importance of visual contrast, but knowing how to measure it is another.

 

For most people, vision is their most dominant sense. About 80% of our perception, learning, cognition and activities use visual cues. Contrast helps us detect objects from the background and to perceive distance.

Inadequate contrast leads to confusion and difficulty negotiating the environment, even if only temporarily.  Australian Standards require a certain level of luminance contrast in the built environment. But most access consultants use their own eyes as the measuring tool. Is this good enough? Probably not.

Penny Galbraith took conference delegates through the two main measuring instruments and there is good reason for not using them. One is costly and the other is heavy and bulky. Then she introduced a free app for a smart phone called Get Luminance. While there is still more work to do on establishing the validity of the app, it gives a better guide than a guess by eyesight.

The title of Galbraith’s paper is, Achieving visual contrast in built, transport and information environments for everyone, everywhere, everyday. The key points are in a set of presentation slides. 

There is much to consider and it is good to see there is a solution. Photographs are two dimensional and often provide an indication of poor contrast. If the place is unfamiliar it is sometimes difficult to make out certain features. For example, a stainless steel sign against a concrete wall. 

Galbraith wrote another article with Richard Bowman, Luminance Contrast Standards, the Boy Who Could, and Visionary Pathfinders. The article discusses the inadequacy of standards in reflecting user experience. 

Norwegian study on staircases

As our populations age we will have more people experiencing low vision. This means that contrasts between objects will become an increasingly important factor in negotiating the built environment.

Although standards stipulate a certain luminance contrast and levels of light (lux) for buildings, how are they measured, who measures them, and what are they measured with?

This issue was investigated by a team in Norway using staircases for the case studies. They found that the tools used by builders and planners vary, and this results in different contrast and light readings for the same staircase. Other variables were also found to influence the readings, such as reflection or glare from overhead lighting. Sunny or cloudy conditions, the shadow of the measurer when measuring, and different angles and positions of the meter all bring different results.

The findings and conclusion of the study raise an important question: Are the staircases as bad as they seem in terms of not meeting the legislative requirements? Or are the requirements too difficult to fulfil? The team concluded that the answer lies with a representative group of people with low vision guiding them on understanding usability. Another case of standards being useful but not entirely effective – the users have the answer once again.

The article, Planning and Measuring Luminance Contrast in Staircases contains charts, graphs and pictures that illustrate their methods and results. The article is free to download.

L.D. Houck1 , K. Gundersen, O. Strengen: Universal Design 2016: Learning from the Past, Designing for the Future. H. Petrie et al. (Eds.)

Seeing the Light

What is luminance contrast and how do you measure it? The non-technical explanation is the contrast of the light reflected on one surface compared with that of another, adjoining or adjacent surface. For example the contrast between the kitchen bench and the cupboard below and the wall behind.

Contrasts create greater safety especially in areas like the kitchen and bathroom. Lee Wilson lists the many things in and around the home and public buildings that need such contrast. He explains in more detail the everyday items that we might not think of: coat hooks, locker handles, buttons, switches, toilet seats, floors/walls, and more.

There’s a more technical look at luminance contrast and compliance with standards on the EqualAccess website. It covers some of the most common errors and where things go wrong.  

 

Three papers from the International Journal of Architecture and Planning address universal design. Once you scroll through the usual context-setting paragraphs on the principles of universal design, the research itself has something to offer. The articles are on cinema experiences, user experience and public space 

Disability and Otherization: Readings on Cinema in The Light of UD Principles. The study explains the relationship between architecture and disability in cinema, and how it is portrayed. Using 6 well-known films that include othering, the researchers apply the 7 principles of universal design to analyse how disability is portrayed. Interesting way of dissecting societal attitudes and how such films might impact on social attitudes perhaps reinforcing prejudices.

User-Involved Universal Design Experience in the Space, Product and Service Development Process, concludes that universal design is about multiple users regardless of the design discipline. The aim was to encourage students to design beyond specialised “disability products” and to integrate a wide spectrum of users.

Public Space and Accessibility examines pedestrian ways including ramps. Specific dimensions make this a guide largely for wheelchair access. Car parking and bus stops are also covered. The article reports on a workshop they ran on universal design. It ends with the note that other disabilities including cognitive diversity now need to be considered. Perhaps of most interest to access consultants to compare with Australian standards.  

The Illustrated Technical Guide to the Accessibility Standard for the Design of Public Spaces published in 2014 by GAATES (Global Alliance on Accessible Technologies and Environments) is comprehensive. GAATES is based in Canada and refers to the Americans with Disabilities Act for standards, but they also include best practice features and design considerations. This means the design guide is applicable almost anywhere. 

The guide is available as a Google Docs version or you can view it online. The Table of Contents lists: Paths of Travel, Recreational Trails, Beach Access Routes, Outdoor Public Use Eating Areas, Outdoor Play Spaces, Accessible Parking, Obtaining Service in Public Spaces, and Maintaining Accessible Public Spaces.

Walkability is much more than paved walkways. To encourage people to get out and about, places and spaces need to be inviting. We know that urban design impacts our health and wellbeing so it’s important to get it right. Whether people go by foot, e-mobility or mobility device, size matters in urban design.  Nikola Babic says that the scale and form of buildings has a big impact on walkability. Height and width of places and spaces play their part. For example, the sense of scale is blurred when streets are too wide. Active frontages such as shops and cafes, good lighting and a sense of safety are critical factors in attracting pedestrians. Green infrastructure is another important element to include.  With the outbreak of COVID19, more people are aware of the importance of walking. However, most footways are too narrow to provide physical distancing. A good case of where size matters. It also matters for accessibility. Having welcoming streets should be part of the accessibility plan.  Babic discusses the “superblock model” in Barcelona and the 15-Minute City in Paris as examples of what works and what doesn’t. His article is very readable and good for anyone new to this topic. Babic encourages discussion with others to further develop ideas.  Babic ends with, “This short paper is just a beginning of a more in-depth research of walkable and ‘healthy’ urban forms which will explore the complex relationship between the history of urbanism, urban form, urban design, social processes and well-being.” The title of the article is, Superblocks – The Future of Walkability in Cities? It can also be downloaded from the Academia website.