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Research & Best Practices

The Carbon Footprint of Asphalt Pavements: A Reference Document for Decarbonization

In this follow-up to the GHG Emissions Inventory, NAPA is taking proactive steps to provide a roadmap for the industry and agencies to leverage unprecedented levels of federal funding in IIJA, IRA, and other federal programs to reduce greenhouse gas (GHG) emissions. It details specific actions individual companies and agencies can take to reduce GHG emissions – making it useful to pavement engineers, asphalt mix producers, paving contractors, policy makers, and other stakeholders with an interest in reducing embodied carbon emissions associated with asphalt pavements.


GHG Emissions Inventory for Asphalt Mix Production in the United States

This first-of-its-kind report documents the asphalt pavement's contribution to GHG emissions nationwide, including avoided emissions achieved with current technologies, along with comparisons to related sectors and research needed to continue reducing emissions.


Readily Implementable Asphalt Technologies

With an ambitious goal of achieving net zero carbon emissions by 2050, you may be wondering what you can do now. There are many opportunities to optimize asphalt pavement materials, mix production practices, paving operations, and pavement design. Explore these resources to begin implementing environmentally friendly practices, optimizing your operations, and addressing your bottom line – today.


Production Strategies for Saving Money and Reducing Emissions

QIP-132 aims to help mix plant operators apply learnings from QIP-126 and QIP-127 to conserve energy and reduce costs. Details specific opportunities related to the drying/heating process, maintaining adequate storage temperatures, and electrical energy use. Includes self-audit worksheets to make it easy to evaluate individual facilities.


Benefits of Prioritizing RAP

This document underscores the economic, environmental, and performance advantages of prioritizing Reclaimed Asphalt Pavement (RAP) in asphalt mixture production. Road owners can achieve substantial cost savings, reduce environmental impact, and enhance pavement performance by embracing RAP, according to the comprehensive findings. The asphalt pavement industry is urged to prioritize RAP utilization for sustainable resource management, reduced emissions, and long-term cost efficiencies.


5 Benefits of Asphalt Pavement Milling

Milling is a fundamental practice in the maintenance and rehabilitation of asphalt pavements. This paper explores the multifaceted benefits of milling, highlighting its role in restoring pavement geometry, facilitating material recycling, removing deteriorated materials, aiding in surface preparation, and preserving existing infrastructure. By exploring each benefit, this paper illustrates the significance of milling as an essential component of modern pavement management strategies.


Efficient Trucking

Trucking represents a significant cost in the production and placement of asphalt mixtures and contributes to greenhouse gas emissions. In the effort to optimize trucking operations and lower emissions, asphalt producers can focus on planning, scheduling, and management/execution. Download this report to find strategies and techniques within each of these areas, along with a Tactical Checklist to complete a self-audit and find opportunities to increase efficiency.


With support from The Road Forward, NAPA's Plant Operations Subcommittee developed the Plant Efficiency Series to help asphalt mix producers with specific operational topics.

Driving Sustainability with Key Performance Indicators (KPIs) in the Asphalt Industry

The use of KPIs is increasingly hailed as an effective way to measure and manage environmental performance.

Balanced Operations: Strategies for Seamless Collaboration Between Paving Crews and Asphalt Plants

This paper delves into potential strategies that can enhance collaboration, leading to operational efficiencies in asphalt manufacturing plants.

Operational Tips: The Road Forward to Lower Emissions and Higher Profits

This series of case studies explores opportunities to reduce environmental impacts while improving business practices.

Using EPDs to Inform Decisions and Modernize Operations

Green Asphalt LLC in Long Island City, New York used NAPA's verified Environmental Product Declaration (EPD) tool, to quantify the environmental impact of their asphalt mixtures. The tool helps Green Asphalt make data-driven decisions, modernize operations, and provide better information to tell their story.


Using Liquified Natural Gas to Lower Fuel Costs

E.T. Simonds Materials Co. and Kinetrex Energy partnered to reduce delivered fuel prices, obtain cleaner fuel, and reduce operational and maintenance costs with Liquified Natural Gas (LNG).


Insulating to Prevent Loss of Thermal Energy, Reduce Fuel Use and Reduce Costs

Granite Construction Co. shares its data on the benefits of pipe insulation to minimize thermal energy loss — within one year the project paid for itself by reducing energy consumption by 55 percent. 


Electric Heated Tank Farm

Learn how an electric asphalt tank farm, an existing technology, was leveraged by Orlando Paving Co. to reduce carbon emissions by 99.5% and save 16.5% on energy usage.


Paving Under Stockpiles Pays Off Environmentally & Economically

This case study shows how paving under stockpiles can reduce aggregate moisture and therefore reduce fuel consumption. Read how they did it at Michigan Paving & Materials, A CRH Co.


Subscribe to NAPA’s communication channels

Find out when new resources are added here. Look for reports on emissions, the climate-related impacts of freeze/thaw events on asphalt pavements, and more coming soon!