Preconstruction Critical Path for Highway Projects ... · represented by placement of the bar on...
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10/15/2018 1 Preconstruction Critical Path for Highway Projects Jeff Jasper, P.E. University of Kentucky Transportation Center Tulsa Time Capsule (1957) Tulsa Time Capsule (1957) Tulsa Time Capsule (2007) Tulsa Time Capsule (2007) Tulsa Time Capsule (2007)
Transcript of Preconstruction Critical Path for Highway Projects ... · represented by placement of the bar on...
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Preconstruction Critical Path for Highway Projects Jeff Jasper, P.E.
University of Kentucky
Transportation Center
Tulsa Time Capsule (1957)
Tulsa Time Capsule (1957) Tulsa Time Capsule (2007)
Tulsa Time Capsule (2007) Tulsa Time Capsule (2007)
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Background: Kentucky Transportation Center charged to research & develop…
Critical Path Method for KYTC Project Development
Identify typical KYTC highway projects and phases. Create several high-level CPM templates for these typical projects and common project phases.
PRIORITY TASK
Critical Path Method for KYTC Project Development
Graphical Representation of the Entire Project
Time Scale, Activities, Durations, and Internal Activity-Relationships represented by placement of the bar on the Gantt Chart
The Gantt Chart
3/1 3/3 3/133/113/93/73/5
• Rural Federal Bridge Replacement CE I
• Urban Federal Bridge Replacement with Railroad CE I
• 4 Mile Rural Road Widening into Urban Intersection EA FONSI
Project Contexts
average, Better Than Average and, EXTRAORDINARY average, Better Than Average and, EXTRAORDINARY
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• “Normal” Rural Federal Bridge Replacement CE I
• “Normal” Urban Federal Bridge Replacement with Railroad CE I
• “Normal” 4 Mile Rural Road Widening into Urban Intersection EA FONSI (In Progress)
“Normal” Project Contexts
Work BreakdownStructure
• Made assumptions based on fictitious projects (i.e. Project Contexts)
• Created WBS for the Project Contexts (project work & deliverables)
How Do We Define Dependencies?
Dependent or subordinate activities assigned per “normal” KYTC processes and procedures (mostly); some activities and dependencies shown in the desired order to be performed.
Durations for Our Project Contexts
Priority? Emergency orNormal/Common Practice
Durations for Our Project Contexts
Complexity? Low, Medium, or High
“Normal” Rural Federal Bridge Replacement CE1
• Standard Rural Bridge Replacement
• Environmental (CE I)
• Track for Archeology & not
• Track for Asbestos & not
• Right Of Way
• 4 to 6 parcels, some appraisals, some MARs, no relocations, a miscellaneous move (i.e. barn)
• Two paths tracked: ROW Acceptance and Condemnation
• Utilities Overhead and In-ground
• A few overhead poles, underground water line
• Time durations for medium and high complexity
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“Normal” Rural Federal Bridge Replacement CE I
“Normal” Rural Federal Bridge Replacement CE I
“Normal” Rural Federal Bridge Replacement CE I
Normal Priority with Medium Complexity
Rural Federal Bridge Replacement CE I
Phase I Phase II Total
Acceptance, No Arch & Asbestos
1 years 4 months 7 day
1 years 9 months 1 days
3 years 1 months 6 days
Acceptance, Arch & Asbestos
1 years 4 months 7 day
2 years 1 month 3 years 5 months 6 days
Condemnation, No Arch & Asbestos
1 years 4 months 7 day
2 years 0 months 13 days
3 years 4 months 21 days
Condemnation, Arch & Asbestos
1 years 4 months 7 day
2 years 4 months 13 days
3 years 8 months 18 days
Project Time Durations:
Rural Federal Bridge Replacement CE I
Phase I Phase II Total
Acceptance, No Arch & Asbestos
3 years 2 months 22 days
3 years 6 months 6 days
6 years 8 months 25 days
Acceptance, Arch & Asbestos
3 years 2 months 22 days
4 years 0 months 2 days
7 years 2 months 24 days
Condemnation, No Arch & Asbestos
3 years 2 months 22 days
4 years 1 months 1 day
7 years 3 months 23 days
Condemnation, Arch & Asbestos
3 years 2 months 22 days
4 years 7 months 7 years 9 months 20 days
Normal Priority with High Complexity Project Time Durations:
Urban Federal Bridge Replacement CE I with RR
Phase I Phase II Total
Acceptance, No Arch & Asbestos
1 years 4 months 7 day
1 years 9 months 1 days
3 years 1 months 6 days
Acceptance, Arch & Asbestos
1 years 4 months 7 day
2 years 0 months 1 days
3 years 4 months 9 days
Condemnation, No Arch & Asbestos
1 years 4 months 7 day
2 years 0 months 13 days
3 years 4 months 21 days
Condemnation, Arch & Asbestos
1 years 4 months 7 day
2 years 4 months 13 days
3 years 8 months 18 days
Normal Priority with Medium Complexity Project Time Durations:
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Urban Federal Bridge Replacement CE I with RR
Phase I Phase II Total
Acceptance, No Arch & Asbestos
3 years 3 months 4 years 0 months 17 days
7 years 3 months 17 days
Acceptance, Arch & Asbestos
3 years 3 months 4 years 0 months 17 days
7 years 3 months 17 days
Condemnation, No Arch & Asbestos
3 years 3 months 4 years 1 months 1 day
7 years 4 months 2 days
Condemnation, Arch & Asbestos
3 years 3 months 4 years 7 months 7 years 10 months
Normal Priority with High Complexity Project Time Durations:
Queried KYTC project database• BR Funding• CE I Environmental• Design Funding Authorization to Letting• No easy way to sort Urban vs. Rural
Validation
• 264 valid BR projects
• 64 have duration less than 1 year • (Emergency or Expedited)
• Compared to data sets with and without
the projects of less than one year
ValidationValidation
• Average=
2 years, 6 months
• Range=
11 days to
12 years 11 months
• Medium Complexity =
63rd percentile
• High Complexity =
99th percentile
264 BR Project Observations:
Bridge Replacement Times
Validation
• Average=
3 years, 2 months
• Range=
1 year to
12 years 11 months
• Medium Complexity =
52nd percentile
• High Complexity =
98th percentile
200 BR Project Observations:
Bridge Replacement Times
Microsoft Project files (Gantt Charts) and Project Flow Maps for Rural & Urban Federal Bridge Replacement CE1 are Available online. Go to:
http://ktc.uky.edu/ismyprojectonschedule/
Further Information
Critical Path Method for KYTC Project Development
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Critical Path Method for KYTC Project Development
Questions?
Contact Information: [email protected]
502-229-0819
