State-of-Practice Technologies on Accelerated Urban Highway Rehabilitation: I-15 California Experience
Publication: Journal of Construction Engineering and Management
Volume 133, Issue 2
Abstract
This case study paper presents an innovative fast-track approach applied to a heavily trafficked urban freeway reconstruction project in Southern California. Badly deteriorated truck lanes in both directions along a stretch of I-15 were rebuilt from the gravel base up. The operations, estimated to take using traditional nighttime closures, were completed in two continuous closures with round-the-clock (about for each direction) operations. This “Rapid Rehab” project adopted state-of-practice technologies to accelerate construction, mitigate traffic disruptions, and propagate project information. As a result, traffic demand through the construction work zone was reduced by 20% and the maximum peak-hour delay was reduced by 50%. The estimated benefits of accelerated reconstruction on this project included a 28% reduction in agency cost and 29% time value savings to road users, compared to the traditional approach of using repeated nighttime closures. Web surveys showed dramatic changes in public perception of the Rapid Rehab approach from initial reluctance and objection to positive support.
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Acknowledgments
The funding for this study provided by Caltrans is gratefully acknowledged. The research team would also like to acknowledge the information and coordination support by Caltrans, especially from the I-15 Devore project team including Imad Abu-Gharbieu, Resident Engineer, and senior traffic engineer Patrick Hsu. This I-15 Devore research team has been honored with two Caltrans 2005 Excellence in Transportation Awards, one for innovation and another for public awareness. It also received the 2005 Tranny Award for highway projects issued by the California Transportation Foundation.
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© 2007 ASCE.
History
Received: Jun 3, 2005
Accepted: Aug 7, 2006
Published online: Feb 1, 2007
Published in print: Feb 2007
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