TY - JOUR
T1 - Impact of Alternative Project Delivery Systems on the International Roughness Index
T2 - Case Studies of Transportation Projects in the Western United States
AU - Abkarian, Hoseb
AU - El Asmar, Mounir
AU - Underwood, Shane
N1 - Funding Information:
This study was funded by the U.S. Department of Transportation through the National Transportation Center, University of Maryland, College Park. The authors thank the following individuals for providing project data that were critical to complete this research: Paul Burch and Yongqi Li of the Arizona DOT; Jay Goldblum and Nabil Haddad of the Colorado DOT; Nilesh Surti of the North Carolina DOT; Russell Swearingen, Justin Moderie, and Lauri Kunze of the Oregon DOT; Ray Tritt of Caltrans; Tanveer Chowdhury, Eddie Coggins, Raja Shekharan, and Kalyan Asam of the Virginia DOT; and Justin Clarke and Tom Deitering of FHWA.
Publisher Copyright:
© 2017 National Academy of Sciences.
PY - 2017
Y1 - 2017
N2 - The impact of alternative project delivery methods (APDM) was compared with that of the traditional method of design–bid–build (DBB) on the long-term performance of transportation projects. The metric used to quantify long-term performance differences between projects is the international roughness index (IRI), which is an indicator of ride quality. Data were collected on four alternative delivery projects on the National Highway System in Arizona and Colorado, along with data on their comparable DBB projects. Two of the projects provided northbound and southbound data and their respective comparisons, so six pairs of projects were investigated. In the study of the IRI time series, five of the six APDM projects were found to perform better than their traditional counterparts. This exploratory study contributes to the body of knowledge by starting to quantify the impact of APDM on the actual long-term performance of transportation projects.
AB - The impact of alternative project delivery methods (APDM) was compared with that of the traditional method of design–bid–build (DBB) on the long-term performance of transportation projects. The metric used to quantify long-term performance differences between projects is the international roughness index (IRI), which is an indicator of ride quality. Data were collected on four alternative delivery projects on the National Highway System in Arizona and Colorado, along with data on their comparable DBB projects. Two of the projects provided northbound and southbound data and their respective comparisons, so six pairs of projects were investigated. In the study of the IRI time series, five of the six APDM projects were found to perform better than their traditional counterparts. This exploratory study contributes to the body of knowledge by starting to quantify the impact of APDM on the actual long-term performance of transportation projects.
UR - http://www.scopus.com/inward/record.url?scp=85044570174&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85044570174&partnerID=8YFLogxK
U2 - 10.3141/2630-10
DO - 10.3141/2630-10
M3 - Article
AN - SCOPUS:85044570174
SN - 0361-1981
VL - 2630
SP - 76
EP - 84
JO - Transportation Research Record
JF - Transportation Research Record
IS - 1
ER -