DFI Magazine November/December 2020 - 90

They include housing, education and the
provision of goods and services. The DDA
makes disability discrimination unlawful,
aims to promote equal opportunity and
access for people who have disabilities, and
also allows disability standards to be
formulated in a range of areas, including
public transportation.
In this context, the Disability Standards
for Accessible Public Transport 2002
(Transport Standards) was developed to
spell out in detail rights and obligations
under the DDA. In addition to the Transport
Standards, the Australian Standard AS1428
specifies the design requirements for new
building work, as required by the Building
Code of Australia (BCA), to provide access
for people who have disabilities.
Reforms to the Transport Standards are
currently being undertaken, led by the
National Accessible Public Transport
Advisory Committee (NAPTAC). The goal
is to ensure that all the state jurisdictions
and the Australian Government are
working together to achieve common goals.
Implementation of measures to improve
public transportation access is carried out
by the state governments, following the
disability inclusion and action plans of the
different Departments of Transport.

Infrastructure Access Features
Both in Germany and Australia, newly
designed transportation infrastructure and
upgrades of existing facilities must comply
with national standards for barrier-free
accessibility. Particular attention in each
country is given to:
* Providing continuously accessible
paths of travel, and circulation spaces,
for people who use wheelchairs
* Providing access and facilities for
people with ambulatory disabilities

* Lifts and long ramps to guarantee stairfree access to transportation platforms
and circulation within the premises.
The wide ramps have shallow slopes.
Based on German and Australian
national standards, the slope of the
ramps is limited to between 5% and 7%
depending on a ramp's length (a 9.8 yd
[9.0 m] ramp in Australia can have a 7%
slope, e.g., whereas a 16.4 yd [15.0 m]
ramp, only a 5% slope). Landings, or
half-paces, shall be provided every 6.6
yd (6.0 m).

* Providing access for people who have
sensory impairments

* Weather protection above seats for the
passengers waiting at platforms (i.e.,
canopy shelters)

In terms of the built environment, the most
commonly constructed features that create
barrier-free access for existing public
transportation facilities (infrastructure) are:

Transport Station Upgrades

* Suitable platform heights, to guarantee
that people who have disabilities can
easily enter and exit trains or other
vehicles without external aid (i.e., that
they have at-grade access). In Germany,
the rail platforms must have a
minimum height of 1.8 ft (55 cm).
Typical layout of barrier-free rail
platforms (credit: www.deutschebahn.com)

Lifts and canopies above platforms are
essential elements for a barrier-free
configuration of modern transportation
infrastructure. Vertical platform lifts,
which are simpler than elevators and used
for traveling shorter distances, allow multilevel, inclusive access to platforms for
people who are in wheelchairs. Platform
canopies offer weather protection and
comfort to passengers.
Both elements are usually founded on
shallow foundations. But if ground
conditions are not favorable, the use of
deep foundations is required. That has
been the case at several train stations that
the authors and Ischebeck have been
involved with assisting on the design and
construction of, including:
* Light Rail Station Stadthaus (City Hall),
implemented in 2015 in Bonn (North
Rhine-Westfalia, Germany)
* Suburban Rail and Metro-Station
Stadthaus implemented in 2015 in
Dortmund (North Rhine-Westfalia,
Germany), described below as a case
study
In many cases, the deep foundation
solution originally considered for
modifying existing foundations consisted
of bored piles. However, the large space that
operating a piling rig usually requires could
have caused major disruptions to railway
operations. For this reason, a different deep
foundation solution was suggested for the
foundation of the lift shafts and the canopy
columns: micropiling.

90 * DEEP FOUNDATIONS * NOV/DEC 2020


http://www.deutschebahn.com

DFI Magazine November/December 2020

Table of Contents for the Digital Edition of DFI Magazine November/December 2020

TOC #1
TOC #2
DFI Magazine November/December 2020 - Intro
DFI Magazine November/December 2020 - 1
DFI Magazine November/December 2020 - 2
DFI Magazine November/December 2020 - TOC #1
DFI Magazine November/December 2020 - 4
DFI Magazine November/December 2020 - TOC #2
DFI Magazine November/December 2020 - 6
DFI Magazine November/December 2020 - 7
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