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Innovative Delivery Methods for Highway Infrastructure
Seminario de infraestructura Universidad de los Andes Bogota, Colombia Keith R. Molenaar University of Colorado SIIC UNIANDES 2017 11 October 2017
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Innovative Delivery Methods for Highway Infrastructure
Learning Objectives Define US highway project delivery methods Describe project delivery method performance Demonstrate how to select appropriate delivery method SIIC UNIANDES 2017 11 October 2017
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Innovative Delivery Methods for Highway Infrastructure
US Highway Success National system National standards Free to the public Creates work for public and private sectors SIIC UNIANDES 2017 11 October 2017
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Innovative Delivery Methods for Highway Infrastructure
US Highway Challenges Deterioration Traffic congestion Smaller public sector Time to design and build new projects SIIC UNIANDES 2017 11 October 2017
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United States Highway Project Delivery Methods
Evolution of Highway Project Delivery Methods 1800 B.C. Code of Hammurabi (Design-Build) 450 B.C. Classical Greece (Design-Build) 1200 A.D. Middle Ages Cathedrals (Design-Build) 1450 Renaissance Emergence of Design- Bid-Build 1900s US Highway Built by Lowest Bidder 1990s US Highway Special Experimental Programs Design-Build Law for US Highways 2002 Construction Manager General Contractor Law for US Highways 2012 SIIC UNIANDES 2017 11 October 2017
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United States Highway Project Delivery Methods
SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
How do highway project delivery methods impact performance? Project schedule? Cost certainty? Cost growth? SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
How do highway project delivery methods impact performance? 3-year research study 15 researchers and 25+ reviewers Data collected from 291 completed projects Case studies of best and worst projects SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Data Collection Goals Collect the largest highway project delivery database Collect only completed projects Geographic Project type Project size Project complexity SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Two-step approach Contract admin databases Project manager questionnaires SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Research Data Collection 291 projects 134 D-B-B projects 34 CM/GC projects 39 D-B/LB projects 84 D-B/BV projects 28 agencies Completed SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Project Complexity SIIC UNIANDES 2017 11 October 2017
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D-B-B Project Complexity
US Highway Project Delivery Performance D-B-B Project Complexity SIIC UNIANDES 2017 11 October 2017
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CM/GC Project Complexity
US Highway Project Delivery Performance CM/GC Project Complexity SIIC UNIANDES 2017 11 October 2017
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D-B Project Complexity
US Highway Project Delivery Performance D-B Project Complexity SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Average Project Cost Contract Method Mean Median Min. Max. D-B-B (n=134) $20,286,637 $12,438,075 $183,202 $252,052,326 CM/GC (n=34) $36,328,010 $19,167,399 $1,390,828 $235,936,099 D-B/LB (n=39) $10,646,348 $4,384,177 $69,108 $68,826,264 D-B/BV (n=77) $43,364,854 $22,127,526 $622,317 $357,760,287 SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance Average Project Schedule
Contract Method Mean Cost ($) Mean Project Duration (Days) Mean Agency Design Duration (Days) Mean Construction Duration (Days) D-B-B (n=74) $21,687,447 1,774 932 642 CM/GC (n=24) $41,368,952 929 361 511 D-B/LB (n=18) $12,249,585 889 268 435 D-B/BV (n=21) $48,532,458 1,516 662 837 SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Average schedule for D-B-B & D-B/LB projects between $2M-10M Contract Method Mean Cost ($) Mean Project Duration (Days) Mean Agency Design Duration (Days) Mean Construction Duration (Days) D-B-B (n=19) $4,958,329 1,506 795 508 D-B/LB (n=10) $4,745,533 773 181 380 SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Average schedule for D-B-B & D-B/LB projects between $2M-10M SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Ave Schedule for D-B-B, CM/GC and D-B/BV Projects between $10M-50M Contract Method Mean Cost ($) Mean Project Duration (Days) Mean Agency Design Duration (Days) Mean Construction Duration (Days) D-B-B (n=34) $21,188,585 2,130 1,139 818 CM/GC (n=10) $23,912,981 662 281 349 D-B/BV (n=10) $18,604,503 1,420 638 639 SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Timing of Award for D-B-B, CM/GC & D-B/LB Projects between $10M-50M SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Average Project Intensity Contract Method Mean Cost ($) Mean Project Intensity ($/Days) D-B-B (n=74) $21,687,447 $12,802 CM/GC (n=24) $41,368,952 $46,450 D-B/LB (n=18) $12,249,585 $12,816 D-B/BV (n=21) $48,532,458 $28,527 SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Project Award Growth per Delivery Method Contract Method Mean (%) Standard Deviation D-B-B (n=129) -9% 18% CM/GC (n=31) 3% 6% D-B/LB (n=37) -5% 32% D-B/BV (n=78) -7% 22% CM/GC closest to EE (mean & std deviation) SIIC UNIANDES 2017 11 October 2017
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US Highway Project Delivery Performance
Summary of Findings Innovative delivery methods Are used on all project costs Are used on all project complexities Reducing project schedules CM/GC is generally the fastest CM/GC can cost more at award SIIC UNIANDES 2017 11 October 2017
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Selecting Project Delivery Methods
Project Delivery Selection Matrix SIIC UNIANDES 2017 11 October 2017
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Selecting Project Delivery Methods
Develop project goals and identify project constraints Evaluate the primary factors 1. Delivery schedule 2. Complexity and innovation 3. Level of design 4. Cost 5. Initial project risk assessment Evaluate the secondary factors 6. Staff experience / availability 7. Level of oversight and control 8. Competition and contractor experience SIIC UNIANDES 2017 11 October 2017
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Innovative Delivery Methods for Highway Infrastructure
Learning Objectives Define US highway project delivery methods Describe project delivery method performance Demonstrate how to select appropriate delivery method SIIC UNIANDES 2017 11 October 2017
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