TY - GEN
T1 - Exploring potential delays associated with requests for information in cm/gc highway construction
AU - Papajohn, Dean
AU - Alleman, Doug
AU - El Asmar, Mounir
AU - Molenaar, Keith
N1 - Publisher Copyright:
© 2018 American Society of Civil Engineers (ASCE). All rights reserved.
PY - 2018
Y1 - 2018
N2 - Requests for information (RFIs) on construction projects facilitate communication between the contractor and the owner or designer. If responses to RFIs are not made promptly, they may cause delays. With alternative project delivery methods like construction manager/general contractor (CM/GC), the contractor participates in the design phase, which provides a much broader understanding of the design. This suggests fewer RFIs for these types of projects compared with the traditional design-bid-build (D-B-B) delivery method. Additionally, projects with alternative delivery methods are frequently on accelerated schedules, which would make them sensitive to RFI response time. Research has not addressed whether or how the CM/GC project delivery method relates to RFI response time, and by corollary, potential project delays. In this research, a simulation of the RFI process was developed using the Simphony simulation software. Probability distributions for RFI creation interval times and RFI response durations were developed from CM/GC highway project data. Preliminary results provide insights into the potential delays due to RFIs. Simulation results on a 3-year CM/GC highway construction project indicate that RFI review delays could potentially generate construction delays up to 10% of the construction duration.
AB - Requests for information (RFIs) on construction projects facilitate communication between the contractor and the owner or designer. If responses to RFIs are not made promptly, they may cause delays. With alternative project delivery methods like construction manager/general contractor (CM/GC), the contractor participates in the design phase, which provides a much broader understanding of the design. This suggests fewer RFIs for these types of projects compared with the traditional design-bid-build (D-B-B) delivery method. Additionally, projects with alternative delivery methods are frequently on accelerated schedules, which would make them sensitive to RFI response time. Research has not addressed whether or how the CM/GC project delivery method relates to RFI response time, and by corollary, potential project delays. In this research, a simulation of the RFI process was developed using the Simphony simulation software. Probability distributions for RFI creation interval times and RFI response durations were developed from CM/GC highway project data. Preliminary results provide insights into the potential delays due to RFIs. Simulation results on a 3-year CM/GC highway construction project indicate that RFI review delays could potentially generate construction delays up to 10% of the construction duration.
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U2 - 10.1061/9780784481295.064
DO - 10.1061/9780784481295.064
M3 - Conference contribution
AN - SCOPUS:85049190279
T3 - Construction Research Congress 2018: Infrastructure and Facility Management - Selected Papers from the Construction Research Congress 2018
SP - 640
EP - 649
BT - Construction Research Congress 2018
A2 - Wang, Chao
A2 - Berryman, Charles
A2 - Harper, Christofer
A2 - Lee, Yongcheol
A2 - Harris, Rebecca
PB - American Society of Civil Engineers (ASCE)
T2 - Construction Research Congress 2018: Infrastructure and Facility Management, CRC 2018
Y2 - 2 April 2018 through 4 April 2018
ER -