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The Project Emission Estimator Life Cycle Tool

The Project Emission Estimator (PE2) will have the capability of benchmarking life cycle emission estimates associated with construction maintenance and use of the roadway. This page outlines the steps taken to illustrate the concept of a pavement life cycle along with the inputs needed to create one in PE2.

The following inputs are needed to development a pavement life cycle in PE2:

1. General Project Information
   • Generalize roadway speed (55mph or 70mph) This generalization affects use phase and work zone traffic emissions
   • Average Daily Traffic (ADT)
   • Project Length
   • Number of Lanes
2. Define the first intervention strategy
   • This will define the initial construction (materials, batch plant, and hauling/construction equipment) and work zone emissions in year 1.
   • Currently, choices limited to any one of the reconstruction, rehabilitation, or maintenance projects investigated by researchers at Michigan Technological University (MTU).
   • Duration Days of the project will also be defined to estimate relative work zone traffic emissions.
3. Define the second intervention strategy (Intervention Year)
   • Repeat step two, until preservation strategy is achieved and end-of-life has been attained.
   • Use phase will be measured yearly throughout the life cycle and quantified in the life cycle emission report.
4. Output Life Cycle Emission Report

   General Information

   Generalized Roadway Speed: 55mph 70mph
   
   Average Daily Traffic (ADT):
   
   Project Length (in miles):
   
   Number of Lanes:
   

   Build Life Cycle

   R1 M1 R2 M2 HMA Cold Milling and Overlay Full Depth Concrete Pavt Joint and Crack Repairs HMA Cold Milling and Resurfacing Concrete Patch Repairs and HMA Resurfacing Intervention Year:
   
   Project Duration Days:

   Year	Job Type	Type	Emissions per Lanemile	Project Duration Days