This talk was given at the FOSS4G Buenos Aires 2021. This research is about the development of an EIA(Environmental Impact Assessment) decision support system that effectively integrates and visualizes the results of the EIA review process and related information such as BIM/GIS, modeling data, and sensor data. The final goal is to improve the EIA process so that not only experts but also non-experts can participate in the EIA process and easily understand the EIA statements using innovative technologies such as 3D GIS and Easy Finger real-time simulation. The final system will be developed and opened as an open source. This research is 5 years long project funded by Ministry of Environment, South Korea. This talk will focus on the 1st year's research outcome and future plans.

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EIA(Environmental Impact Assessment)
“The Environmental Impact Assessment (EIA) is designed to review, predict, and assess
the potential environmental impacts of a project before its plan is finalized in order to
come up with measures to prevent or minimize any possible adverse effects that the
project could have on the environment.”
<Source: Korea Environment Corporation, https://www.keco.or.kr/en/core/contentsid/3016/index.do>
“Environmental Impact Assessment (EIA) purpose is to ensure that the environmental
and social effects of proposals are understood prior to decisions being taken and to aid
public participation in decision-making.”
<Source: Digital EIA Project Partners, Digitizing the Environmental Impact Assessment(EIA) Process>

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EIA Key Stages
<Source: Digital EIA Project Partners, Digitizing the Environmental Impact Assessment(EIA) Process>

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Huge and burdensome
<Source: Digital EIA Project Partners, Digitizing the Environmental Impact Assessment(EIA) Process>
<Source: 남양주왕숙 공공주택지구 조성사업 환경영향평가서>

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Stuffed in documents – Non interactive
<Source: 남양주왕숙 공공주택지구 조성사업 환경영향평가서>

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I can see the assessments and predictions in an
interactive way?
I can change the development plan by myself and want
to see the results in real-time?
We can interact with other stakeholders through one
single EIA platform?
We can visualize BIM and 3D GIS data on a web
browser?

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Document, report oriented ESs
Full of jargons, technical terms
Static modeling & simulation results
Digital technology is not being exploited
Dynamic and multimedia based ESs
Easy to read, navigate, understand ESs
Increasing citizen participation and
public consultation
Providing real-time modeling &
simulation
Integrated Digital EIA platform for the
different stakeholders
Harnessing digital technology to drive
productivity
As-Is To-Be
Limitations of citizen participation
Inefficient communications among
stakeholders
EIA
Data Visualization
Platform
Motivations

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Overview
Development of EIA Decision Support Spatio-Temporal Visualization System
EIA Analytics, EIA Data Hub, …
2020-2024
5 Year National R&D

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DSS Models
Environment Impact
Predictions Tools
Spatial Statistics
DSS
Algorithms
Citizen/NGOs
Developers/Reviewers
Open Data
Public System
EIA Decision Support System
Open/Use
Data Collecting &
Cleaning
Decision Support Platform
Data & Analytics Platform
EIA
Data Hub
AI/Big Data
Environment Impact
Assessments/Predictions
EIA Visualization Platform
EIA
Algorithm
Interface
EIA
Data
Interface
① Data & Analytics ② Algorithms & Tools
③ EIA DSS
Easy Finger
Realtime Simulation
BIM/GIS
Visualization
EIA Data/Algorithm
Visualization
AR/VR

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Conceptual System Design
사업분야
Data Layer Processing/Business Layer Application Layer
OGC/ISO Standard Based Interface
Terrain/Cadastre
Facilities
Statistics
Forest/Agriculture
Population
Weather/Climate
Administrative
Noise
IoT…
Visualization
Geo
Statistics
Data
Management
Conversion
Geo
Processing
Modeling
Simulation
Other
Modules
Biological
Atmosphere
Life
Socio
Economic
Soil
Service Layer

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Overall System Design
EIA Biological Soil
Water
Atmospheric
1st
Breakdown
Terrain/Geology
Soil
Land Use … ….
2nd
Breakdown
Geometry ->
Coverage
DEM Extraction Land Cut/Fill Analysis Results ….
Atomic
Process
WPS WPS
Grid Coverage Analysis
Geometry Vector Analysis Statistical
WPS WPS
WMS, WFS, WCS
….
…
….

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FOSS4G Based Platform Architecture
EIA Data Visualization Platform
3D Visualization Server
BIM/3D GIS Server
(mago3D)
Easy Finger Realtime
Modeler
Database 2D GIS Server
• Maps
• DEM
• Terrain
• Land Use
• Forest
• Soil
• Geology
• Life
• Images
• …
Env. Data
• BIM
• IFC
• REVIT
• REV
• 3DS
• COLLADA
• OBJ
• CityGML
• LAS
• …
BIM/3D
F4D Converter
• Developers
• Reviewers
• Government
• Citizens/NGOs
Web System
• Developers
• Reviewers
• Governments
• Citizens/NGOs
AR/VR
Contents Management
System

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Understand spatial patterns
➔ Same X, Y Mean, SD and Corr. with different spatial patterns.
<Source: https://www.autodesk.com/research/publications/same-stats-different-graphs>

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Effective Data
Understanding
Data Analytics
Visual Storytelling
Data Visualization
Realtime Interactions
Know what it says

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Know what it says
Importance of
Visualization
1. Know what big data says
2. Non-Expert can understand the meaning
3. Easily catch the trends and patterns
4. Easily sharing the meaning of data
5. Increasing the data using
<Source: https://brunch.co.kr/@dimension-value/56>

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<Source: https://www.youtube.com/watch?v=qP3wYrnHHug>
Sample Case - Noise

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Sample Visualization Case – BIM/GIS

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Sample Visualization Case – Wind Simulation

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Sample Visualization Case – Air Pollution

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Sample Visualization Case – Hydrology

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Sample Visualization Case – Oil Spill

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• Current EIA statements are quite paper document oriented.
• Current EIA statements are hard to navigate, read, and understand with full of
jargons, technical terms, and scientific numbers, which make public inaccessible to
the real meaning of the statements.
• EIAs are falling behind other industries harnessing digital technology to drive
productivity.
• This research is an attempt to increase transparency, accessibility, trust,
interactions among stakeholders around EIA processes.
• It is expected to give a new tool to stakeholders for understanding EIA processes
by developing new ways of EIA data visualization.
• Still long way to go.

23. This work was supported by Korea Environment Industry & Technology Institute(KEITI) through 'The Decision Support System
Development Project for Environmental Impact Assessment' Program, funded by Korea Ministry of Environment(MOE)(Grant number:
2020002990005)
Sanghee Shin shshin@gaia3d.com