Public Space and Accessibility

Abstract

Virtually everyone experiences a physical disability at some time in their lives; that is to say that their mobility has been restricted. An infant, en adult with an injury, a parent with a pushchair, an elderly person are all disabled in one way or another. Those who remain healthy and able-bodied throughout their lives are few. The physical environment and public services and public spaces in general should be as barrier-free as possible to fulfil the needs of all people equally. People with a disability have the same rights as other people. People with a disability are not a homogeneous group. They may include the mentally retarded. The most important item for the disabled people is the possibility of circulation; namely accessibility. Inclusive and universal design approaches have to be considered especially for the public spaces and public buildings. In this paper, some main items of circulation in relation with accessibility have been detailed as well as a workshop study outputs which has been hold in Selçuk University, Department of Architecture.

Full text

ICONARP
ICONARP
International Journal of Architecture & Planning
Received 15 July 2018; Accepted 17 Aug 2018
Volume 6, Special Issue, pp: 01-14 /Published 31August 2018
DOI: 10.15320/ICONARP.2018.46–E-ISSN: 2147-9380
Research Article
Abstract
Virtually everyone experiences a physical disability at some time in their
lives; that is to say that their mobility has been restricted. An infant, en
adult with an injury, a parent with a pushchair, an elderly person are all
disabled in one way or another. Those who remain healthy and able-
bodied throughout their lives are few. The physical environment and
public services and public spaces in general should be as barrier-free as
possible to fulfil the needs of all people equally. People with a disability
have the same rights as other people. People with a disability are not a
homogeneous group. They may include the mentally retarded. The most
important item for the disabled people is the possibility of circulation;
namely accessibility. Inclusive and universal design approaches have to
be considered especially for the public spaces and public buildings. In
this paper, some main items of circulation in relation with accessibility
have been detailed as well as a workshop study outputs which has been
hold in Selçuk University, Department of Architecture.
Public Space and
Accessibility
Meltem Yılmaz*
Keywords: Iinclusive design, design for the
disabled, universal design, accessibility
*Prof. Dr., Faculty of Fine Arts, Hacettepe
University, Ankara, Turkey. E
E-mail: meltemy@hacettepe.edu.tr
Orcid ID: http://orcid.org/000-0001-7117-
6300

Meltem Yılmaz
DOI: 10.15320/ICONARP.2018.46 – E-ISSN: 2147-9380
INTRODUCTION
All of us want to join the society life as an independent and equal
individual. In order to join the society life we have to access and
use the urban spaces primarily. Everybody has the right to access
and use the urban spaces independently and equally. The
provision of this depends on the accessibility of our urbanized
environments.
Usually the cities are designed according to the young, healthy,
athletic and dynamic people who can climb the 40 centimeters
pedestrian curbs, go up from the stairs and can manage to come
over every kind of obstacles. This is the easiest way of designing
the built environment. The important thing is to realize the space
organizations for the use of everybody. In all societies, besides
young people there are old people, children, pregnant, wheel chair
users, visually despaired, hearing impairment and the other
different positioned people. So, especially the public spaces have
to be planned according to the access and the usage of everybody.
This requirement has become a compulsory in 5378 numbered
Disability Act in Turkey.
PUBLIC SPACE
The acknowledgement of the word “public” is given as “collective,
whole, society, general”; in other words, it means as open to
everybody, open to the whole. The most distinctive quality of
public sphere is its “visible and audible” character or “open” can
be said. The other important quality of public sphere is
“commonness”. Briefly, the sphere that everybody can be “visible
and audible” is “common” (or the areas that have been permitted
for common use) public sphere.
The meaning of the “public” in the concept of public sphere is
explained as “1. All, whole, 2. Population in a country, society,
general”. Public Sphere is explained as “Belong to public, the
place that the public works have been done”. The most important
quality of the public sphere is its openness to the whole
population. In public sphere, diversities join together and at the
same time, it is witnessed to the communal and political events
(Kosova, 2007:46, 51).
Philosophic and sociologic based public sphere is explained as an
open interactive and informative area that individuals can
participate. The democratic public system that depends on the
principles like pluralism, tolerance, clearance that forms the
essence of democracy; provides the participatory, conciliatory
and transparent public spheres (Koca and Yılmaz, 2017, 11).
02

Public Space and Accessibility
ICONARP - Volume 6, Special Issue / Published: August 2018
We can see the public sphere as a widened area when associated
with the ‘space’ which includes not only the political activities but,
the routines that belongs to daily life. When the space is the point
of issue, both of the two aspects (political activities and daily life)
can be coincide. The urban square that is the stage of political
activities is the space of publicity at the same time which belongs
to everyone, common area that daily routines take place.
In Architectural Terminology generally the usage of public
expression is sometimes used for the buildings as well as
open/urbanized areas. Publicity means openness to everybody.
Either closed space nor open urban area, public space carries the
meaning of permission for general usage (Gürallar, Neşe, 2010).
Public space is conceived as open or closed spaces which
constructed for the usage of every individual without any
discrimination in the society (park, garden, stop etc.) ministration.
Everybody has the responsibility to create solutions for the public
life; we can not ignore the problems that the disabled people come
across in their daily lives in built environment (Özdemir, 2017,
27).
General Directorate of Disabled and Elderly Services that
connected to the Ministry of Family and Social Policy (2011,
Decision 663), as its old name was Prime ministry Head of the
Disability Administration defined accessibility as: “to access
every right and services in all of the live areas and to benefit from
those”. In this direction, all of the people live in the cities have the
right to benefit equally from the public spaces especially. In other
words, everybody has the right to benefit from the public spaces
equally and independently. Not for the society but with the
society, the design for the access and usage together with the
qualified interaction on physical space for whole citizens can be
provided. Public space has great contributions on the formation
and progress of public sphere. Public spaces are the milieus that
citizens meet, come across, socialize, do activities and can be
exemplified as areas like streets, avenues, parks and squares.
ACCESSIBILITY
The most important item for the disabled people is the possibility
of circulation; namely accessibility. American Disabilities Act
(ADA) is federal legislation passed in 1990 that prohibits
discrimination against people with disabilities
(Investopedia.com) defines the accessibility as: “Accessible road,
is the road that from a node in the interior of a building to the
public space does not include any obstacle and provides
continuity”. Accessibility must be the most essential feature of the
human centred design in built environment. Everybody must use
03
2

Meltem Yılmaz
DOI: 10.15320/ICONARP.2018.46 – E-ISSN: 2147-9380
the built environment independently and equally. Every country
must have the goal of providing the usage of built environment in
safe and beneficially including the disabled people.
The objective of each country should be the provision of the
environments which are convenient, safe and enjoyable to use by
everyone, including people with disabilities. City environments
are particularly hostile to people with disabilities, mainly since
access to most places is very difficult or almost impossible. The
UN Standard Rules on Accessibility make the following
recommendations regarding access to the physical environment
(Arvanitis, 2004: 20-21):
- States should initiate measures to remove the obstacles to
participation in the physical environment. Such measures
should develop standards and guidelines and consider
enacting legislation to ensure accessibility to various areas in
society, including housing, buildings, public transport services
and other means of transportation, streets and other outdoor
environments.
- States should ensure that architects, construction engineers
and others who are professionally involved in the design and
construction of the physical environment have access to
adequate information on disability policy and measures to
achieve accessibility.
- Accessibility requirements should be included in the design
and construction of the physical environment from the
beginning of the design process.
- Organizations of persons with disabilities should be consulted
when standards and norms for accessibility are being
developed. They should also be involved locally from the initial
planning stage when public construction projects are being
designed, thus ensuring maximum accessibility.
Like everybody, the disabled people want to be safe when they go
out from their homes. To move independently without coming
across any obstacles on the streets and roads; to reach the
building entrances easily and to use the entrance – exit door that
everyone uses; to access the city squares and service areas at the
same way are the main demands of disabled people (Koca, Yılmaz,
2017: 12).
According to this approach which named as ‘universal design’,
discrimination has to be prevented, rightly and egalitarian
approach has to be reflected into the space and products. The
concept of universal design contributes us to understand more
better the people that do not resemble to us whom we see as the
“others”; contributes us to put ourselves instead of them who are
less lucky from us or seems as less powered (elderly people,
04

Public Space and Accessibility
ICONARP - Volume 6, Special Issue / Published: August 2018
physically or mentally retarded people, children and the like)
from us and behave attentional. This kind of approach will serve
us to produce “inclusive” design and to take the required
precautions by accepting that they have the right to use the built
environment at least like us (İmamoğlu, 2013:67).
CIRCULATION
Pedestrian Roads: Accessible road does not include any elevation
difference, stair, footstep or escalator (Figure 1). In open public
areas like avenues, streets, crossings, etc. pedestrian roads have
to be designed taking into consideration all of the users. Vehicle,
pedestrian and bicycle roads can be separated from each other
without using any elevation difference, only by using different
materials and colors.
On the pedestrian roads there must not be any obstacles like
vehicle barriers or rising bollards. The trees, shrubs or the lighting
units like elements which can hit or scratch faces should be placed
30 centimeters away from the pedestrian roads.
For the visually impaired people guided roads have to be applied
on the pedestrian roads. If there does not any guiding road on the
pedestrian ways the visually impaired people can follow the
existing borders. In order to follow the borders smoothly all of the
equipment on the roads have to be elevated 10 centimeters higher
from the ground level.
The elevation difference in between the pedestrian way and the
vehicle way must be maximum 15 centimeters. For the visually
impaired people on the pedestrian ways, the guiding roads at least
50 centimeters away from the vehicle road have to be placed. The
guiding roads have to be placed on a pure and acceptable route
and have to be away from the manhole and drainage canals. For
the usage of all disabled people, the material of guiding roads have
to be on the same level with the ground pavement (Koca, Yılmaz,
2017:36-38).
Figure 1. An interior pedestrian
road; Oslo University (Yılmaz,
2017).
05

Meltem Yılmaz
DOI: 10.15320/ICONARP.2018.46 – E-ISSN: 2147-9380
Ramps: The slope of all of the ramps have to be 5 % if we think the
independent usage of wheel chair user. The ramps that have a
slope up to 8 % can be used by the wheel chair user with the help
of others (Figure 2).
The clean width of the ramps has to be minimum 91.5 centimeters.
At the starting and finishing parts of the ramps there must be an
empty space left minimum 152.5cm x 152.5 cm. for the movement
of the wheel chair user. The distance that the wheel chair user can
go straight is 9 meters. In the ramps that longer than 9 meters,
platforms have to be placed minimum in 152 .5 centimeters long.
In the below figures, in Figure 3a you see only the stairs to reach
the upper level which is not accessible for a wheel chair user. On
the upper level there is the students’ cafeteria of Hacettepe
University Beytepe Campus and the wheel chair user student
cannot access there. Afterwards a ramp with 5 % sloped with
platforms constructed and it became accessible for everyone
(Figure 3b).
Stairs: The width of the stair has to be minimum 91.5 centimeters
which is the minimum dimension for the passage of wheel chair
user. The common stair and platform widths in housing units have
to be minimum 120 centimeters, in public buildings the
dimensions have to be minimum 150 centimeters. For the
comfortable usage of everyone after 8 – 10 footstep a platform has
to be placed in staircases.
At the starting, finishing and platforms sensible stimulating
surfaces minimum 60 centimeters in width have to be applied. In
order to ease the visibility and the prevention of slippery, the
Figure 3a. Stairs which are not
accesible
Figure 3b. A ramp with platforms
(%5 slope) constructed for
accessibility of everyone
Figure 2. The ramp slopes (Koca,
Yılmaz, 2017:43).
06

Public Space and Accessibility
ICONARP - Volume 6, Special Issue / Published: August 2018
color of the step tips has to be different from the main color of the
stair and has to be marked with a perceptible color.
The stair step width has to be minimum 28 centimeters, the height
of the step has to be maximum 16 centimeters for the disabled
people; for the other situations it can be maximum 18 centimeters.
The formula for counting the relationship of the dimensions of the
risers and steps:
2 x Riser Height + Step Width = 60 – 64 cm
For the usage of disabled people open or transparent risers for the
stairs do not permitted. The finishing of the risers can be rounded,
flat or angel.
Balustrades: Balustrades, parapets and holders have to be placed
to the places where people in need of them like passage ways,
stairs and ramps. Balustrades have to be placed 30 centimeters
away from the starting and ending points of the stairs and ramps
and have to continue all along the stairs. In ramps instead of
balustrades protective borders at least 5 centimeters high can be
used. The ramps or stairs which is wider than 180 centimeters
need balustrades to be replaced in the middle. The height of the
balustrades, parapets and holders from the ground level have to
be 90 centimeters for adults and 70 centimeters for children
(Figure 4). Visually impaired people can do edge following in the
places where there are balustrades. So, in balustrades and holders
a bordure that at least 10 centimeters higher from the ground
have to be placed (Koca, Yılmaz, 2017: 45-47).
The stair or ramp balustrades can stand by themselves or can be
fixed to the wall. If they fixed to the wall then the distance between
the parapet and the wall have to be at least 4 centimeters. The
Figure 4. Balustrades and Parapets
(Koca, Yılmaz, 2017: 47).
07

Meltem Yılmaz
DOI: 10.15320/ICONARP.2018.46 – E-ISSN: 2147-9380
diameters of the parapets have to be at least 4 centimeters and
have to provide the possibility to be hold in balance.
Entrances and Exits: In the buildings main entrances equal right,
fair usage principles have to be considered for all the users. The
entrances for the disabled people have to be designed accordingly.
For the passage ways, ramps, stairs, entrance doors, information
and warning boards required dimensions have to be used. In front
of the entrances space for the movement of wheel chair user has
to be provided. If there is carpet on the ground floor, the material
has to be fixed on the ground securely. The carpet tips have to be
fixed on to the ground and the edges have to be striped. The hair
or the texture of the materials thickness must not be more than 13
mm. (Figure 5) (Koca and Yılmaz, 2017: 52-53).
TRANSPORTATION
Vehicle Approach: In the mass transportation or private car use, all
of the users’ approach to the vehicle, get on and out of the car
actions of them needs an adequate space which is very important.
For the disabled people the reserved space for them to see the
vehicle, approach, to get on and out of the car has to be cleared
from all of the obstacles. In built environments, different kind of
applications have to be considered for the physical, visual and
audial impaired individuals. For example, for a wheel chair user
efficient area has to be provided; for a visually impaired individual
stimulating surfaces on the ground and audial stimuli systems are
needed; for people who see less, bright colors or phosphoric
strings can be applied; for the audial impaired people visual
stimulating systems can be applied.
Figure 5. Entrances and Exits –
Hacettepe University Beytepe
Campus (Koca, Yılmaz, 2017: 53).
08

Public Space and Accessibility
ICONARP - Volume 6, Special Issue / Published: August 2018
In between the pedestrian way and road, ramps should be
constructed for the crossing. At the transition areas and at the
other used ramps on the roads have to have maximum 5 % slope.
Vehicle Parking Areas: Vehicle parking areas have to be placed
closer to the entrance and open to an accessible route. The
dimensions of the disabled vehicle parking side by side with an
angle are minimum 250cm x 250cm. Thinking the movement of
the wheel chair the distance left in between the two parking areas
for the transition corridors has to be minimum 150 cm in width.
In front of the vehicle, minimum 91.5 cm in width transition road
has to be left (Figure 6) (Koca and Yılmaz, 2017: 29-30).
In the transition points from parking areas to pedestrian roads,
there must not be any level difference preventing the crossing. If
the level difference is inevitable then minimum 91.5 cm widened
ramps have to be constructed. If the rams are sloped in one
direction than the slope must be 5%, if sloped in three directions
than the slope of the sides have to be 10 %. Ramps can be located
on transition area or on pedestrian road.
The materials of the roads in between the buildings and the
vehicle park have to be non-slippery and matte taking into
consideration the weather conditions.
Stops: Stops have to be protective from the weather conditions
depending on the existing region. Inside the stops there must be
seating places, holding bars have to be fixed in needed sections
and an empty space must be left for the parking of a wheel chair.
Figure 6. Vehicle Parking Area
(Koca, Yılmaz, 2017: 30).
09

Meltem Yılmaz
DOI: 10.15320/ICONARP.2018.46 – E-ISSN: 2147-9380
At the stops, audible and written (the writings may be embossed)
information and warnings related to the mass transportation
service has to be found. These writings and warnings have to be
in contrast color with the background of the panels which the
corners are rounded (Figure 7). Embossed information panels
have to be placed in between 110cm – 130cm higher from the
ground level (Koca and Yılmaz, 2017: 32-33).
In front of the stops and at the back of the stops minimum 100 cm
has to be left for the transfer. If there are transparent surfaces in
the stops, bright, colored and reflective strings higher 150 cm
from the ground level, 14 -16 cm widened have to be applied on
those transparent surfaces (Figure 8) (Koca, Yılmaz, 2017: 33).
When mass transportation vehicles approached to the stop,
a direct transfer has to be provided without any level
difference (Figure 9).
Figure 7. Liverpool Bus Stops
(Yılmaz, 2010).
Figure 8. The bus – stops (Koca,
Yılmaz 2017:33).
10

Public Space and Accessibility
ICONARP - Volume 6, Special Issue / Published: August 2018
WORKSHOP ON UNIVERSAL DESIGN
In Selçuk University, Faculty of Architecture, Department of
Architecture, III International Universal Design Panel and
Workshop hold on 3rd - 4th of May in Konya; The title was “to
Think with Universal design”. Related with the concept of
‘universal design’ 9 workshops organized with different
subjects. One of them was the universal design of Selçuk
university, faculty of architecture; 13 students attended to
the workshop coming from different universities in Turkey.
During the workshop, together with the participant students
only the exterior spaces examined for the disabled people.
After determining the problems and obstacles of the exterior
spaces for the disabled, solutions discussed for an accessible
design and proposals had drawn on a plan (Figure 10a) and
a visual documentation (Figure 10b) also provided with the
suggested designs.
Figure 9. Bus ramp detail from USA
(Yılmaz 2017).
11

Meltem Yılmaz
DOI: 10.15320/ICONARP.2018.46 – E-ISSN: 2147-9380
The aim of the workshop is to show the students to examine
the existing built environment with a thinking eye and
encourage them to consider an inclusive design approach for
all. Initially they started to share the disabled family or
relative members, and with their own experiences they tried
to determine the obstacles and deficiencies in the existing
built environment. After the determination, they tried to
apply universal design principles for all in their drawings
including not only physically disabled people but mental
disorders also.
CONCLUSION
The environment belongs to all. It is a fundamental human
right. Although major stakeholders in society, people with a
disability are often excluded from this right. We cannot
envisage a future of hope without access to meaningful
citizenship for all. A new vision for humanity, one based on
accessibility and social justice, is a prerequisite for a better
quality of life.
In every society there are individuals who owns different
properties and different ages. All the individuals have the
Figure 10a. The plan of Universal
design for Selçuk university faculty
of architecture (Yılmaz, 2018).
Figure 10b. A visual documentation
of the suggested design proposal
(Yılmaz, 2018).
12

Public Space and Accessibility
ICONARP - Volume 6, Special Issue / Published: August 2018
right to access the public space and use it. The people with
different disabilities in the society have to be able to use the
built environment and public space in an independent and
equal way. At that point, the urban planners, architects, local
governments have to do their responsibilities. Cities and the
buildings have to be designed and applied according to the
principles of universal design. Local governments have to be
precise for the application of universal design principles to
the building designs and public space designs and has to do
the required inspections.
Generally, in public spaces and buildings, the required
precautions are taken according to the physically disabled
people like wheel chair users, visually or audible impaired
individuals and the like; but, there are space solutions also
for mentally and cognitively disordered people. In Turkey,
some built environment precautions are taken only for the
physically impaired people. However, some space solutions
have to be searched and provided for the people who have
autism, dementia or the other similar disabilities. In order to
realize this, the society have to accept the behaviours that
include disabled people and contribute to the formation of a
fair built environment for all.
REFERENCES
Arvanitis, A. V. (2004) People with a Disability in Modern
Society, Published by Biopolitics International
Organization, ISBN 960-7508-20-3, Athens.
Gürallar, Neşe (2009) Kamusal Alan, Mimarlık 350 Dergisi,
Kasım – Aralık.
İmamoğlu, V. (2013) Evrensel Tasarıma Bir Yaklaşım: ODTÜ
Mimarlık Fakültesi Deneyimi, “Herkes İçin Tasarım”
Müfredatı Geliştirme Çalıştayı, Derleyenler, A.Özkul, C.
Girgin, O. Tutal, M. Anay, Anadolu Üniversitesi Yay.,
Eskişehir.
Koca, D. ve Yılmaz, M. (2017) Engelliler İçin Mekan
Düzenlemelerinde Kapsayıcı Tasarım, YÖK yayını,
Ankara.
Kosova, E. (2007) Kamusal Alan ve Güncel Sanat, Proje Kitabı,
İstanbul Bilgi Üniversitesi Yayınları, İstanbul.
Özdemir, A. (2017) Engelsiz Yaşama Doğru, ODTÜ’lüler
Bülteni, ODTÜ Mezunlar Derneği Yayını, Şubat, sayı
267, Ankara.
13

Meltem Yılmaz
DOI: 10.15320/ICONARP.2018.46 – E-ISSN: 2147-9380
www. Investopedia.com access date June, 2018.
Resume
Meltem Yılmaz was born in Canada, on April 28, 1965. She
received the Diploma in Architecture from Middle East
Technical University and the Master’s degree from Hacettepe
University. Her Ph.D. degree is from Ankara University. She is
currently working in Hacettepe University as a professor in
Department of Interior Architecture & Environmental Design.
Her research interests include sustainable design, universal
design, design for disabled people and historical
environments.
14