LEAN CONSTRUCTION PRINCIPLES AND RAILWAY …...LEAN CONSTRUCTION PRINCIPLES AND RAILWAY MAINTENANCE...
Transcript of LEAN CONSTRUCTION PRINCIPLES AND RAILWAY …...LEAN CONSTRUCTION PRINCIPLES AND RAILWAY MAINTENANCE...
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LEAN CONSTRUCTION PRINCIPLES AND RAILWAY MAINTENANCE
PLANNING
Daria Ivina
PhD student, Lund University, Sweden
Nils O. E. Olsson
Professor, Norwegian University of Science and
Technology, Norway
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Background – Organizational model
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5 contractor companies:
• Infranord
• Strukton Rail
• NRC i Sverige
• Infratek Sverige
• BDX Företagen
34 basic mantenance contracts
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2015 2016 2017 2018 2019
Planned maintenance activities
Planned working hours
Background – Track works
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Purpose and Method
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Purpose - study maintenance planning processes based on Last Planner framework
Method
• Literature study
• Interviews
• Data analysis
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Lean philosophy
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1. Value for customer
2. Value stream
3. Flow4. Pull
5. Perfection
Lean
Last Planner® System
Percentage Plan Completed
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(1) unproductive maintenance
(2) waiting for maintenance resources
(3) centralized maintenance
(4) poor inventory management
(5) unnecessary motion
(6) poor maintenance
(7) ineffective data management
(8) underutilization of resources
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Wastes in Maintenance
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Planninglevels
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STRATEGICAL PLANNING
ANNUAL PLANNING
DETAIL PLANNING
OPERATIONAL
PLANNING
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Barriers in Lean implementation
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• lack of knowledge about lean principles
• knowledge management
• inefficiency in source planning
• lack of trust
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Percentage Plan Completed
• Southern Sweden
• 4 companies A, B, C and D
• 1 month (April 2019)
• Time on track planned vs used
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-6%
-29%
-40%
94%
71%
100%
60%
+24%
-50 0 50 100
A
B
C
D
% time not used
% used possesions
% over used
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Conclusions
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• Last Planner principles have a potential to improve effectiveness in maintenance processes
• Establishing changes to contractors work routine based on lean principles may face some barriers
• The data available at Trafikverket can be utilized to analyze the performance of contractors
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Thank you for your attention!Questions?
Study is a part of BANDAT project supported by the Swedish Transport Administration (Trafikverket)