Annals of GIS,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 20
Published: Oct. 15, 2024
Challenges
related
to
data
integration
and
interoperability
were
raised
recently
under
the
auspice
of
Urban
Digital
Twin
(UDT).
This
new
paradigm
shows
its
potential
address
current
city
challenges.
However,
maximize
outcomes
at
scale,
we
should
tackle
fundamental
issues
integration.
Indeed,
various
(DT)
frameworks
are
developed
in
practice.
Their
implementations
led
identification
three
main
levels
The
first
level
involves
extension
model
handle
information.
second
supports
by
default,
needs
be
transformed
meet
requirements.
third
performs
front-end
with
help
system
architectures.
aim
this
work
is
analyze,
illustrate,
guide
effectiveness
different
approaches.
exploratory
review
unpacks
according
corresponding
UDT
lifecycle
phases
(i.e.,
creation,
use,
update
phases).
It
highlights
challenges
potentialities
offers
DT
designer
conceptual
guidelines
Furthermore,
theoretical
scenarios
extracted
investigated,
considering
several
types
sources
data.
research
provides
a
comprehensive
analytical
framework
for
within
UDTs,
where
some
operational
examined
based
on
life
cycle
While
state-of-the-art
identifies
as
major
challenge
full
implementation
UDT,
it
not
explored
depth,
only
addressed
from
case
study-specific
perspective,
availability
requirement.
Hence,
generic
urban
application-independent
overview
inspired
Spatial
Data
Infrastructure
lifecycle.
article
insights
build,
UDT.
practical
list
initiatives
used
illustrate
exhaustive,
future
documented.
emphasis
creation
use
lifecycle,
which
lacks
concrete
illustration
phase.
limits
practicability
maintenance
Forests,
Journal Year:
2024,
Volume and Issue:
15(2), P. 368 - 368
Published: Feb. 16, 2024
The
effective
development
of
digital
twins
real-world
objects
requires
sophisticated
data
collection
techniques
and
algorithms
for
the
automated
modeling
individual
objects.
In
City
Information
Modeling
(CIM)
systems,
buildings
can
be
modeled
automatically
at
second
Level
Detail
or
LOD2.
Similarly,
Tree
(TIM)
building
Forest
Digital
Twins
(FDT),
solutions
3D
trees
different
levels
detail
are
required.
existing
support
by
generating
models
canopy
lower
part
trunk.
Our
argument
this
work
is
that
structure
tree
trunk
branches
as
important
shape.
As
such,
aim
research
to
develop
an
algorithm
trunks
based
on
from
point
clouds
obtained
through
laser
scanning.
Aiming
generate
trunks,
suggested
approach
starts
with
extracting
cloud,
which
then
segmented
into
single
stems.
Subsets
clouds,
representing
branches,
measured
using
Airborne
Laser
Scanning
(ALS)
Terrestrial
(TLS).
Trunks
generated
fitting
cylinders
layered
subsets
cloud.
stems
a
slices.
accuracy
model
calculated
determining
fitness
Despite
huge
variation
in
geometric
forms,
proposed
gain
better
than
4
cm
constructed
models.
developed
represented
matrix
format,
solution
enables
automatic
comparisons
elements
over
time,
necessary
monitoring
changes
forest
stands.
Due
existence
large
variations
geometry,
performance
deserves
further
investigation
its
generality
other
types
multiple
areas.
Remote Sensing,
Journal Year:
2024,
Volume and Issue:
16(11), P. 1939 - 1939
Published: May 28, 2024
A
key
feature
for
urban
digital
twins
(DTs)
is
an
automatically
generated
detailed
3D
representation
of
the
built
and
unbuilt
environment
from
aerial
imagery,
footprints,
LiDAR,
or
a
fusion
these.
Such
models
have
applications
in
architecture,
civil
engineering,
planning,
construction,
real
estate,
Geographical
Information
Systems
(GIS),
many
other
areas.
While
visualization
large-scale
data
conjunction
with
often
recurring
resource-intensive
task,
automated
workflow
complex,
requiring
steps
to
achieve
high-quality
visualization.
Methods
building
reconstruction
approaches
come
long
way,
previously
manual
semi-automatic
automatic
approaches.
This
paper
aims
complement
existing
methods
generation.
First,
we
present
literature
review
covering
different
options
procedural
context
generation
methods,
focusing
on
workflows
pipelines.
Next,
semi-automated
that
extends
pipeline
include
using
Python
Unreal
Engine.
Finally,
propose
integrating
various
types
analysis
We
conclude
series
challenges
faced
achieving
such
pipelines
limitations
current
approach.
However,
complete,
end-to-end
solution
involve
further
developing
robust
systems
detection,
rooftop
recognition,
geometry
importing
visualizing
same
environment,
highlighting
need
research
development
this
field.
Smart and Sustainable Built Environment,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 30, 2024
Purpose
This
paper
aims
to
elucidate
the
pivotal
role
of
Digital
Twin
(DT)
technology
in
addressing
adverse
impacts
Urban
Heat
Island
(UHI)
and
consolidate
fragmented
knowledge
DT
urban
environments
by
identifying
applied
actions,
proposing
an
approach
revealing
challenges
for
tackling
UHI
effects.
Design/methodology/approach
Using
a
systematic
literature
review,
24
materials
were
retrieved
from
scholarly
databases
provide
comprehensive
understanding
propose
conceptual
framework
mitigating
Findings
The
results
revealed
three
major
study
categories
within
domains:
(1)
DT-enabled
actions
greenery
optimisation,
(2)
implementation
enhancing
resilience
planning
(3)
increasing
fidelity
level
Additionally,
this
introduces
REFLECT,
consisting
seven
layers:
Retrieve,
Establish,
Facilitate,
Lump,
Examine,
Cognition
Take.
proposes
developing
systems-based
model
with
identifiable
scopes,
strategies
factors
through
multilayered
platform,
specifying
input,
process
output
towards
Originality/value
contributes
discourse
on
sustainable
development
highlighting
associated
UHI.
It
demonstrate
applications
directions
innovative
solutions
unlock
full
potential
Digital
twins
of
the
Earth
are
digital
representations
system,
spanning
scales
and
domains.
Their
purpose
is
to
monitor,
forecast
assess
system
consequences
human
interventions
on
system.
Providing
users
with
capability
interact
interrogate
decision
support
systems
for
addressing
environmental
challenges.
By
informing
humans
their
impact
aspire
promote
new
pathways
moving
forward.
answering
causal
queries
through
intervention
analysis,
they
can
enhance
evidence-based
policy
making.
Existing
primarily
technological
information
that
represent
physical
world.
However,
as
social
worlds
intrinsically
interconnected,
we
argue
must
be
accounted
both
within
outside
Earth:
Within
impacts
responses
integral
system;
govern
access
development
guide
responsible
use
acquired
from
twins.
Incorporating
interactions
in
represents
a
transformative
frontier,
promising
unparalleled
insights
into
dynamics
empower
action.
Humans
represented
Earth,
but
also
play
role
usage,
argues
perspective
based
interdisciplinary
scientific
expert
viewpoints.
Ethics and Information Technology,
Journal Year:
2024,
Volume and Issue:
27(1)
Published: Nov. 23, 2024
Abstract
Urban
Digital
Twins
(UDTs)
have
become
the
new
buzzword
for
researchers,
planners,
policymakers,
and
industry
experts
when
it
comes
to
designing,
planning,
managing
sustainable
efficient
cities.
It
encapsulates
last
iteration
of
technocratic
ultra-efficient,
post-modernist
vision
smart
However,
while
more
applications
branded
as
UDTs
appear
around
world,
its
conceptualization
remains
ambiguous.
Beyond
being
technically
prescriptive
about
what
are,
this
article
focuses
on
their
aspects
interaction
operationalization
in
connection
people
cities,
how
enhanced
by
metaverse
ideas
they
can
deepen
societal
divides
offering
divergent
urban
experiences
based
different
stakeholder
preferences.
Therefore,
firstly
repositions
term
comparing
existing
concrete
located
that
a
focus
participation,
including
some
may
be
closer
concept
UDT
than
is
commonly
assumed.
Based
components
found
separately
studied
cases,
possible
hypothesize
future,
advanced
realizations
UDTs.
This
enables
us
contrast
positive
negative
impacts.
While
development
immersive
interactive
digital
worlds
improve
planning
using
collective
knowledge
inclusive
diverse
pose
significant
risks
not
only
common
ones
regarding
privacy,
transparency,
or
fairness,
but
also
social
fragmentation
multiplicities.
The
potential
benefits
challenges
integrating
multiplicity
into
participatory
governance
emphasize
need
human-centric
approaches
promote
socio-technical
frameworks
able
mitigate
division.
