Development of Guidelines to Establish Effective and Efficient Timelines and Incentives for ABC

Reduction of road closure times, traffic disruption and user costs, in addition to improvements in construction quality and utilizing prefabricated elements, are all attractive qualities of the implementation of accelerated bridge construction (ABC) techniques that encourage the transportation agencies to use the technique for repair and replacement projects. ABC helps minimize onsite construction activities, results in decreasing the long-term presence of contractor related equipment, labor, and staging areas and consequently can decrease driver distractions and traffic disruptions that reduce the safety and mobility efficiencies of the transportation network. The total cost of bridge replacement includes the direct costs which are commonly identified as the design, materials, and construction cost and indirect costs that are costs associated with the lower quality of network performance (due to traffic delays or longer reroutes) and opportunity losses that represent the socio-economic (and event environmental) losses due to the closure. The total cost of construction of the bridge is the addition of these two. One should note that some traffic safety issues also lead to inevitable costs, such as accidents occurring because of partial lane closures and drivers unfamiliar to the detour route. This underlines the importance of implementing effective strategies to repair/replace the bridges in the shortest possible time. Oftentimes long detours present opportunities where the use of ABC methods can provide more practical and economical solutions to those available with conventional construction methods. Two time metrics are used when determining the amount of impact to the road user: i) Onsite construction time, which is the period of time when a contractor alters the project site location until all construction related activities are removed. This includes, but is not limited to, the removal of maintenance of traffic items, construction materials, equipment, and personnel; and ii) mobility impact time which is any period of time the traffic flow of the transportation network is reduced due to onsite construction activities (FHWA). The mobility impact time is classified to five tiers: 1) traffic impacts within 1 to 24 hours; 2) traffic impacts within 3 days; 3) traffic impacts within 2 weeks;, 4) traffic impacts within 3 months; and 5) overall project schedule is significantly reduced by months to years. Each tier dictates the type of technology the owner will use. For example, a Tier 1 project would use a slide-in construction method, whereas a Tier 3 project would require on-site assembly of prefabricated bridge elements and systems.

Language

  • English

Project

  • Status: Completed
  • Funding: $48000
  • Contract Numbers:

    DTRT13-G-UTC41

  • Sponsor Organizations:

    Accelerated Bridge Construction University Transportation Center (ABC-UTC)

    Florida International University
    10555 W. Flagler Street
    Miami, FL  United States  33174

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Managing Organizations:

    Accelerated Bridge Construction University Transportation Center (ABC-UTC)

    Florida International University
    10555 W. Flagler Street
    Miami, FL  United States  33174

    Department of Transportation

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Azizinamini, Atorod

  • Performing Organizations:

    Iowa State University, Ames

    Center for Transportation Research and Education
    2711 South Loop Drive, Suite 4700
    Ames, IA  United States  50010-8664

    Accelerated Bridge Construction University Transportation Center (ABC-UTC)

    Florida International University
    10555 W. Flagler Street
    Miami, FL  United States  33174
  • Principal Investigators:

    Alipour, Alice

    Shane, Jennifer

  • Start Date: 20170601
  • Expected Completion Date: 20190531
  • Actual Completion Date: 20190531
  • USDOT Program: University Transportation Centers

Subject/Index Terms

Filing Info

  • Accession Number: 01711276
  • Record Type: Research project
  • Source Agency: Accelerated Bridge Construction University Transportation Center (ABC-UTC)
  • Contract Numbers: DTRT13-G-UTC41
  • Files: UTC, RiP
  • Created Date: Sep 21 2018 10:23AM