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Managing Motor Fleet Safety Programs: Training for the Safety Director
Unit 3 – The Quality Approach to Safety Programs NATMI © 2018
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Unit 3 Objectives Explain why safety directors need to think about safety as part of an overall system Explain why it is important to use data to identify the root causes of problems Distinguish between common cause and special cause variation, and determine how to respond to each kind Describe how control charts can be used to analyze safety data Explain the key quality management approaches that are important to implementing changes to solve safety problems NATMI © 2018
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Quality Management Approach
1. Collect data 2. Identify root causes of problems 3. Develop appropriate solutions 4. Plan and make changes NATMI © 2018
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The Organization as a System of Processes
Processes have their own inputs, steps, and outputs Processes can be simple or complex Processes are interrelated NATMI © 2018
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Success Depends on All Components
Changing any process affects outcome Optimization is achieved through cooperation not competition NATMI © 2018
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Managing a System Recognize importance of interrelationships
Consider process inputs and steps, not just outputs NATMI © 2018
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Variation Every process has variation
Reduce variation to improve efficiency To reduce variation you must understand the cause of the variation NATMI © 2018
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Understanding Variation
Incidents Per Month 30 20 10 J F M A M J J A S O N D NATMI © 2018
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Common Cause Variation
Caused by inputs that are always present in a particular process NATMI © 2018
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Special Cause Variation
Caused by unusual circumstances, where the inputs are not usually part of the process NATMI © 2018
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Actions to Control Variation
Study the overall process OR Study only the incident and events surrounding the incident NATMI © 2018
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Controlling Variation from Common Causes
Incidents Per Month 10 5 J F M A M J J A S O N D A. Study overall process OR B. Study specific incident NATMI © 2018
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Controlling Variation from Special Causes
Incidents Per Month 30 20 10 J F M A M J J A S O N D A. Study overall process OR B. Study specific incident NATMI © 2018
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Quality Management Approach
1. Collect data 2. Identify root causes of problems 3. Develop appropriate solutions 4. Plan and make changes NATMI © 2018
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A Process in Statistical Control
Predictable and stable Basis for prediction NATMI © 2018
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Sample Control Chart Upper Control Limit Lower Control Limit Average
10 Average (Mean) 5 Lower Control Limit J F M A M J J A S O N D NATMI © 2018
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Purpose of Control Charts
Distinguish between common and special cause variation Look at how process is performing Predict future process performance NATMI © 2018
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Is This Process in Statistical Control? - 1
24 6 Upper Control Limit Lower Control Limit Average (Mean) J F M A M J J A S O N D NATMI © 2018
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Is This Process in Statistical Control? - 2
40 Upper Control Limit 20 Average (Mean) Lower Control Limit J F M A M J J A S O N D NATMI © 2018
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Consecutive Increases
Special Cause NATMI © 2018
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Cluster on Same Side of Average
Special Cause NATMI © 2018
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Alternating Gains and Losses
Special Cause NATMI © 2018
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Importance of Teamwork
“People will support what they help to create.” John Wooden “It’s amazing what a group of people can accomplish when no one cares who gets the credit.” NATMI © 2018
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Cycle of Improvement Plan Act Do Check NATMI © 2018
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Questions? NATMI © 2018
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