new naoki kodama japan construction information center · 2017. 5. 19. · in japan, in the...

Naoki Kodama Japan Construction Information Center

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INTRODUCTION

Purpose of using LOD/LOI

Examples in the world

The approach to make standard of LOD for civil engineering in Japan

For the future 2

Plan Design Construction Maintenance

Innovative Construction Production

• Design Visualization

• Design Optimization

• ICT Construction MC/MG

• O/M Productivity Enhancement

Integration of National Policy and Technology, Leveraging Latest ICT

• Cost Reduction

• Quality Management

• Environmental Policy

• Disaster Prevention Policy

CIM Construction Information Modeling/Management

• Leveraging 3D product model

• From plan and design phase of infrastructure development project

• Throughout construction and most importantly at maintenance phase

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The CIM of the Ministry of Land, Infrastructure, Transport and Tourism (MLIT)

After

• Find an Error instantly by 3D

Before

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ＳＴＥＰ１：Start implementing CIM for designs and constructions which should have effect from CIM (FY 2017 ～ ) ＳＴＥＰ２：Investigating for Progress of utilizing CIM (FY 2017 ～ FY 2020) ＳＴＥＰ３：Expanding Maintenance of Infrastructure by CIM Models (～ FY 2025)

Mandate of

utilizing ＣＩＭ

Progress of

utilizing ＣＩＭ

Improve Productivity

20 %

Around

3 years

Examination of Traffic regulation

Examination of safety By machine utilization

② Discussion between stakeholders

Briefing for local residents

Design considering Maintenance

① Front Loading

START Adopting CIM

Implementing Maintenance of Infrastructure by CIM Models to MLIT Field

（イメージ）

ＳＴＥＰ２: Fy 2020 ＳＴＥＰ３: Fy 2025 ＳＴＥＰ１: Fy 2017

The Scope of Expanding CIM

ＳＴＥＰ１ＳＴＥＰ３

○○Bridge

Database : Linked data of CIM Models and location Information

○○Tunnel ダム・ダム湖

砂防施設

風力発電水力発電所

河川・堤防

トンネル

鉄道

漁村集落・砂防林

空港

遊歩道砂浜海岸

○○km

道路法面緑化

石垣

送電施設

自動車専用道路

道路

保存樹木

街路・街路樹

宅地

公園・緑地

タンク

橋梁

漁港

水門

駅・駅前広場

防波堤

農業用水路

圃場整備

The Scope of Expanding CIM by Steps 【FY2017 ～ FY2025】

Around

5 years

Image

implementing CIM for designs and constructions which should have effect from CIM

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When it becomes practical phase with regard to 3D Model, many troubles occur if there are not standards of levels.

For example, the content’s level of the model varies among creators, at the time of hand over.

Miscommunication: Comic strip to explain what problem will occurs if there is no standard LOD ⇒ see Next Page

If there is no standard of LOD

①

②

③

④

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specifications

　・・・・・・・・・・・to make the 3D models which・can recgnize the shape of structure easily ・・・・・・・・・

I should make 3D models ...

Desingner

How do you think the Level of detail of the

moedls？

Relatively simple because it is for briefing to the local residents near the site.

Owner

ーStart Meetingー

Desingner

I have it

Mmm… this part should be consist of more detailed element

I will modify.

DesingnerOwner

Mmm… this part also should have a little more

detail element….

DesingnerOwner

Oh no! Can I finish this

work!?

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To share the recognition of the level of the 3D-models between client and contractor

To share the recognition of the level of the 3D-models between contractor and sub-contractor

To share the recognition of the level of the 3D-models to hand the data in several stage of project ex. From design phase to construction phase

AIA(The American Institute of Architects) developed the first set of the definition of LOD in 2008, and updated in 2013

BIM Forum’s working group developed the Level 350

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＜The United States＞

LOD The Definitions of LOD by BIM Forum）

100

The Model Element may be graphically represented in the Model with a

symbol or other generic representation, but does not satisfy the

requirements for LOD 200. Information related to the Model Element

(i.e. cost per square foot, tonnage of HVAC, etc.) can be derived from

other Model Element.

200

The Model Element is graphically represented within the Model as a

generic system, object, or assembly with approximate quantities, size,

shape, location, and orientation. Non-graphic information may also be

attached to the Model Element.

300


specific system, object or assembly in terms of quantity, size, shape,

location, and orientation. Non-graphic information may also be

attached to the Model Element.

350


specific system, object, or assembly in terms of quantity, size, shape,

orientation, and interfaces with other building systems. Non-graphic

information may also be attached to the Model Element.

400


specific system, object or assembly in terms of size, shape, location,

quantity, and orientation with detailing, fabrication, assembly, and

installation information. Non-graphic information may also be attached

to the Model Element.

500 The Model Element is a field verified representation in terms of size,

shape, location, quantity, and orientation. Non-graphic information may

also be attached to the Model Elements. 14

In PAS1192-2, there shown the Levels of model definition for projects by 7 stages.

They define the information to have and sample pictures to represent the levels.

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＜The United Kingdom＞

Stage number Model name

1 Brief

2 Concept

3 Definition

4 Design

5 Build and commission

6 Handover and closeout

7 Operation

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＜The United Kingdom＞

PAS1192-2

Levels of model definition for building and infrastructure projects

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＜make standard of LOD for civil engineering in Japan＞

Unfortunately, advanced examples in the foreign countries are made for BIM, Building, not for infrastructure.

We decided to make new definition for infrastructure.

It is based on BIM Forum’s definition, but we expand to several types of Infrastructure (e.g. road, bridge,,,)

The proposed definition of the LOD(“詳細度”) in the Civil Engineering field In Japan

We proposed the definition of the LOD in the Civil Engineering field In Japan, in the activity of the Infrastructure Information Standardization Committee.

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＜Definition in Common＞

Level Definition (Common)

100 The Model Element may be graphically represented in the Model

with a symbol or other generic representation

200

Model’s detail is to understand the type of structure Cutting slope and embankment slope is expressed by the Typical cross section. Expression level is as to make to sweep the cross section.

300

The Model Element is graphically represented within the Model as a specific system, object or assembly in terms of quantity, size, shape, location, and orientation. Except the detail structure and joint of the ancillary facilities.

400 In addition to the Level 300, the detail structure and joint of the

ancillary facilities and reinforcing bars are included.

500 The Model Element is a field verified representation

Level for each type of infrastructure

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Level Road River Bridge Tunnel

100

200

300

400

500 field verified field verified field verified field verified

Level for Road (In Japanese)

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Level Common definition definition

For road Sample model

100 The Model Element may be graphically

represented in the Model with a symbol or

other generic representation

対象位置や範囲を表現するモデル

（道路）緩和曲線を含まない概略の中心線のモデルで、道路幅員も含まない

200 Model’s detail is to understand the type of

structure

Cutting slope and embankment slope is

expressed by the Typical cross section.

Expression level is as to make to sweep the

cross section.

対象による概略の影響範囲が確認できる程度のモデル

（道路）計画道路の中心線形と標準横断面でモデル化。地形情報に応じて盛土・切土もモデル化する。

300

The Model Element is graphically

represented within the Model as a specific

system, object or assembly in terms of

quantity, size, shape, location, and

orientation. Except the detail structure and

joint of the ancillary facilities.

一般部の土工部の影響範囲が確認できる程度のモデル

（道路）詳細度200に加えて拡幅部や非常駐車帯といった変化部を含む土工部断面を設定し、地形情報に応じた盛土・切土をモデル化する。また、舗装構成のモデル化も行う。

擁壁や函渠工といった大きな構造物に対しては、その巻き込み形状・配置を含めてモデル化。

交差点においては正確な影響範囲が規定された形状・配置をモデル化する。

400 In addition to the Level 300, the detail

structure and joint of the ancillary facilities

and reinforcing bars are included.

詳細度300に加えて小構造物も含む全てをモデル化

（道路）排水構造、安全施設、路面標示といった付帯構造物等の形状、配置も含めて正確にモデル化する。

500 The Model Element is a field verified

representation

－

－

Sample model of Mixture of levels in road design

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We decided the definition of LOD (for shape), but not about LOI (for information) The study for the LOI in Japan will continue by referencing the real field of construction.

The most important thing is the opinion from the client and contractor from the field.

Further more, we should study for the LOD in the maintenance phase.

The activity for the standard will be continued in Japan I hope that I will report more information next time.

Thank You For your attention

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new naoki kodama japan construction information center · 2017. 5. 19. · in japan, in the...

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