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Costing Projects: A Methodology GN-PBO Meeting, Costing Washington, DC December 17, 2014 Sahir Khan Helaina Gaspard Jean-Luc Pepin Research Chair University of Ottawa
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Purpose Review the context for costing projects Present a replicable methodology usable to cost various projects. What is costing? Why do we do it? First versus second data point.
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Context – the stakeholder universe Citizenry PBO’s Peers Think Tanks and Academics Media Executive and/or Legislative PBO
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Context - diversity of topics posed challenges… …so our strategy had to reflect this reality
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Context – the environment Legislative and fiduciary obligations High expectations from a complex stakeholder universe Complicated institutional arrangements Limited resources A different language in politics
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Learning Outcomes 1.Methodology for costing Bottom-up versus comparative/proxy approach 1.Costing case study: public safety radio network infrastructure. 2.Application in other cases.
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4-Part Costing Methodology 1.Define parameters/working assumptions 2.Acquire data 3.Sort/analyze data 4.Communicate your findings
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Define Parameters/Work Assumptions a)What are you costing? Why? b)Does a current figure exist (e.g. from government)? c)Do you have access to the data necessary to undertake the project? d)Have comparable jurisdictions undertaken a similar project? If so, what was their cost?
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Acquiring Data a)Alternate data sources (e.g. comparative jurisdictions). b)Where to go when other jurisdictions are unwilling to share (e.g. WB)? c)Data credibility is CRUCIAL: i.What is a credible source of data? ii.How can data be verified? iii.The importance of multiple data sources/data points.
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Case Study Lessons
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Sorting and Analyzing Data a)What are common cost drivers? b)What are the phases of your project (i.e. design, build, operate)? c)Are there common elements to the projects across jurisdictions?
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DRIVERS OF COSTS Correlations
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Towers driving by area The high correlation is to be expected given the current technology and coverage rates (p = 0.70)
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Capital costs and geographic area Geographic area and urbanization directly influence capital costs (p= 0.63)
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Total Cost and Agencies
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O&M and agencies The number of agencies has a relatively strong positive effect on the operating costs (p = 0.65)
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O&M and end-user devices End-user devices has a relatively strong positive effect on Opex (p = 0.69)
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The key cost driver – tower sites and total costs Tower numbers drove total cost of project Towers are the most significant driver of total costs (p = 0.88). Total costs include both capital costs (Capex) and operating costs (Opex)
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Communicating your Results a)Data visualization. b)Basic correlations. c)Work inductively and let your data lead.
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Conclusions 1.Be clear about stakeholder needs and choose an appropriate methodology. 2.Both bottom-up and proxy models are dependent on good data. 3.Finding the right cost drivers is key to good cost estimation. 4.Effective communications should balance rigor and accessibility - including the findings and approach.
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Thank-you Sahir Khan & Helaina Gaspard Jean-Luc Pepin Research Chair University of Ottawa, Canada Faculty of Social Sciences +1 613 562 5800 x1402 www.jlp.uottawa.ca
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