Application of Lean Six Sigma in the Operation of a New Metro Rail Transit System

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    • How lean six sigma can contribute to Metro rail transit system
    • How can a Planning Engineer utilize lean six sigma knowledge in the operation of Metro rail transit system
    • What statistical data will be required by the Planning Engineer for fruitful utilization of lean six sigma knowledge.
    • What key tools and methodologies of lean six sigma can be utilized in this industry.
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    Shamshul othman

    Based on my experience the biggest trick for profitability of a public transportation company is punctuality, down to the minute. If your service is punctual to the 60secs as promised,  public will rely on you and you will achieve high ridership thus cost per customer will be reduced. My project leaders completed a similar project and they themselves were shocked that with Six Sigma they really can achieve the travel time within the stipulated 60secs range 100% of the time regardless of the noises. If you have completed your strategic map there should be a lot of initiatives that you can execute using DMAIC (optimization) or DFSS(create) to achieve your ultimate goal.


    Mike Carnell

    @Gill.92 There are at a minimum two areas you need to consider. The first of course is the VOC (Voice of the Customer). Asking other people, even SME’s, may be good directionally but you need to speak directly to your customers. Two reasons specifically. First unless you were part of getting the input from the SME you have no idea how they arrived at their conclusion. Second it is important that your customers see you asking them personally for their input. They need to know you care about them. From that input you build out your KPI’s and your data collection.

    The second part you need to understand is the actual function of the rail system. How does it function. What are the key characteristics that make it run well. As much as I do not like the OEE metric, I would think the same three characteristics in OEE (the idea of multiplying them together is asking to mask the poor performance of one characteristic with a high performance of another characteristic) would be a minimum for your rail system.

    You also might want to consider the maintenance system as well. Look at the advantages of IoT applications to reduce the number of catastrophic failures by using data. It will reduce the cost of repairs (those dollars come straight off the bottom line) and the frequency of unplanned down time.

    You need to keep in mind that you are in the Transportation business but to do that business at a world class level your systems that support it need to be world class as well.

    Just my opinion.

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