https://doi.org/10.24928/2021/0186

Application of Ji Koutei Kanketsu in Highways Design Process Improvement

Quynh Anh Nguyen¹, Lauri Koskela², Doug Potter³, Algan Tezel⁴, Barbara Pedo⁵ & Patricia Tzortzopoulos⁶

¹PhD student, School of Art, Design and Architecture, Univ. of Huddersfield, Queensgate, Huddersfield UK, [email protected], orcid.org/0000-0003-0945-6584
²Professor, School of Art, Design and Architecture, Univ. of Huddersfield, Queensgate, Huddersfield UK, [email protected], orcid.org/0000-0003-4449-2281
³Associate Technical Director & CDM Principal Designer Manager, Arcadis Consulting (UK) Ltd, Manchester UK, [email protected], orcid.org/0000-0003-1681-9785
⁴Senior Lecturer, School of Art, Design and Architecture, Univ. of Huddersfield, Queensgate, Huddersfield UK, [email protected], orcid.org/0000-0003-3903-6126
⁵PhD student and KTP Associate, School of Art, Design and Architecture, Univ. of Huddersfield, Queensgate, Huddersfield UK, [email protected], orcid.org/0000-0002-6520-0981
⁶Associate Dean of Research, School of Art, Design and Architecture, Univ. of Huddersfield, Queensgate, Huddersfield UK, [email protected], orcid.org/0000-0002-8740-6753

Abstract

This paper provides an introduction to ‘Ji Koutei Kanketsu’ (JKK) as a recently developed Lean method and illustrates its potential to support the improvement of BIM-based highways design work processes. JKK is developed based on the concept of jidoka to enhance the autonomation in non-physical work processes. This method provides the employees the confidence to complete their own processes without defects, while requiring a strong collaboration between the managers and their teams. The paper is based on an action research study for trialing the use of JKK in a large engineering company. It is concluded that JKK, when its prescription is compared to the current state, focuses attention to the following issues: defining individual work activities, their support factors, their pre-conditions, the judgment criteria of their outputs, and continuous improvement. JKK is also evaluated by comparing it to other, overlapping methods.

Keywords

Lean, BIM, jidoka, ji koutei kanketsu

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Reference

Nguyen, Q. A. , Koskela, L. , Potter, D. , Tezel, A. , Pedo, B. & Tzortzopoulos, P. 2021. Application of Ji Koutei Kanketsu in Highways Design Process Improvement, Proc. 29th Annual Conference of the International Group for Lean Construction (IGLC) , 623-633. doi.org/10.24928/2021/0186

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