1

BIM

Karin Anderson

BIM Manager

2

Source: McKinsey&Company, “How to boost productivity in construction”

Once a leader in innovation …

3

… construction is now a distant follower

1 Cumulative real growth in the United States, %, 1947-2010

Circa

1940s

Manufacturing Retail ConstructionAgriculture

Productivity

Growth1 760 699 61,512

Circa

2016

Source: McKinsey&Company, “How to boost productivity in construction”

4

https://www.weforum.org/agenda/2018/

06/construction-industry-future-

scenarios-labour-technology/

Building Information Modelling (BIM)

is at the centre of a digital

transformation of the construction

sector and the built environment.

BIM is here to stay

5

14 800 km state railway tracks

11 400 railway

switches

560 stations for

boarding

98 400 km

state roads

41 000 km municipal roads

76 100 km

state roads

20 000 - 21 000 bridges

(approx. 4000 railway bridges)

41 ferry lines

3 300 km external

railway tracks

The Swedish Transport Administration's facility

6

2015Base-level

BIM only in

Investments

2019-

2025Prerequisites

for initial level

of lifecycle

management

2023 ~>Lifecycle management of

assets is based on open

standards

Road-map

7

Extracts from the BIM strategy

• BIM is introduced into the Swedish Transport administration to help increase

productivity

• The asset information management uses an object oriented approach

• Tool neutral requirements based on open standards

• Harmonization of standards for BIM, CAD, GIS and PLM

• The information is traceable and of known quality throughout the life cycle of the asset

• Digital asset information is incorporated in the procurement process

8

Project repository

• Documentation

• Attibutes

• Graphics

• etc

Multiple systems for different purposes for

one national road asset

BIM – Information exchange and deliveries

• Local, proprietary platforms in the projects, ”BIM model”

• Object based storage in different AIM systems

Challenge

9

“Digital twin”

Common digital

facility for efficient

asset management

Management

of asset

information

Together, this contributes to a controlled information flow from concept to decommissioning

Established common

structure and hierarchy

• CoClass, nationalclassification system

• Breakdown hierarchy of assets

• Unique identifier for all asset objects

Identified and required

information needs

• Information requirements for different phases

• Level of detail, LOD

• Level of information, LOI

Standardised

information deliveries

and handover

• International standards (IFC, BCF, GML, ..)

• National standards

• Swedish transport administration specific standards

Prerequisites

Targets 2019

10

Ensure legal conditions for using and

managing digital information

Ensure that development and

application of BIM is in line with the

outside world.

Ensure the ability to apply BIM

Law, procurement and information security

Support, training and follow-up

Prerequisites

Research, development and external collaboration

Preconditioning measures and supporting functions

11

E4 The Stockholm bypassFor a growing region

Length: 21 km

Tunnel: 18 km

Travel time: 15 minutes

No. of lanes: 3 in each direction

Junctions: 6

Traffic 2035: 140,000 vehicles/day

Completion: about 10 years

Cost: EUR 3.4 billion (2018 prices)

2 million today

2,5 million 2030

Stockholm is growing

with approximately

100 people/day

12

Data from tunnel excavation

collected during production in a

structured database (“real-time”)

Tool specific“vendor neutral”

Exchange format

(dgn, dwg)

Drawings

Object oriented

CAD-layer requirements

(SB11+BSAB, 23)

As-built data delivered at hand

over

Shifting to models and data

E4 The Stockholm bypassFor a growing region

13

Better design documentsCoordination model

Technical ReviewQuality controlClash detectionQuantity take-offStrict coding

E4 The Stockholm bypassFor a growing region

14

Revised contract

Ref Description

0 Instructions to tenderers

1 Contract terms

2 Changes to Contract

3 General conditions

6 Special measurements

8 Supplementary instructions

9 Administrative instructions

10 Bill of Quantities

11 Technical descriptions

11.8 Primary Exchange modelsSpecification of infrastructure model

12 Drawings

13 Other information

Models as contract documents

• Design tools used

• File formats

• Issues with compatibility

• Object types

• Level of detail

• Level of information

• Status of content

Model + “Specification of infrastructure model”

E4 The Stockholm bypassFor a growing region

15

Models are Approved for

construction by Trafikverket

Models for construction

produced by ”design

and build” contractor

Models for construction in D&B contracts

16

The project has developed a data base ”tunneldok” for storing tunnel data during production,

this data is then used to follow up on progress and requirements.

Progress and compliance checking

17

• Level of detail in models – understanding of what is needed

• Lack of standards for classification and file-transfer for infrastructure objects

• Pubic client requirement to use vendor neutral CAD-formats

BIM – our challenges

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BIM – our success factors

• High level of ambition from start

• Competent BIM support staff on site and regular training sessions for Trafikverket staff

• Common document management system for technical documents

• Being a mega project allows development and improvement of methods and processes

• High ranking of the object oriented models in the tender packages increases the

credibility and proves the level of ambition to the contractor

19

Karin AndersonBIM Manager – E4FS / Major investments

Mobile: +46 (0) 70-724 70 73

E-mail: karin.anderson@trafikverket.se

LinkedIn: www.linkedin.com/in/karin-Anderson

…Thank you for

your attention!

20

Visualisation of traffic interchange at Kungens kurva

21

Visualisation of artworks

22

See and move around in the coordination model on a 65” screen

23

Models for Construction – Example – Tunnel wall elements

24

BIM in the field – challenging for all parties

25

Visualisation of planned work

FME

26

FME

Comparison between designed and as-built tunnel data

27

Visualisation before and after

28

Visualisation before and after

29

Example from meetings with business owners in

Kungens kurva shopping

30

Visualisation of design model and existing features

under ground

31

Visualisation of the tunnel artwork

32

Visualisation of a very complicated tunnel geometry

33Source: McKinsey&Company

“How to boost productivity in construction”

… with most construction companies continuing to underinvest in R&D and IT

34

Use of 3D Models in Design and Build Contracts – Civil Works

35

Use of 3D Models in Ordinary Contracts – Rock Tunneling Works

36

Use of 3D Models in Design and Build Contracts – Installation Works

37

E4 The Stockholm bypassFor a growing region

For some disciplines and construction

parts the contractor is to design. The

image shows a combination of both.

Models are in contract and describe the

requirements for setting out and construction