Publications: Heavy-Duty Vehicles


Analyzes the model structure, simulation flow, and limitations of the EU’s regulatory tool for the simulation of heavy-duty vehicle fuel consumption. Compares the regulatory vehicle simulation tools used in the EU and the United States.


Starting January 1, 2021, all new HDVs sold in Mexico will be required to meet the best-in-class, filter-based standards, equivalent to those currently in place in the rest of North America and the European Union. The Euro VI and US 2010 options are introduced in 2019, along with much weaker Euro V and US 2007 options, which are allowed over a two-year transition period. The soot-free standards become the only regulatory option on January 1, 2021.


Explores some of the compliance pathways available to heavy duty vehicle manufacturers. Specifically, this paper develops hypothetical technology packages for certain types of tractor trucks, vocational vehicles, and trailers using distinct technology strategies compares cost-effectiveness.


Summarizes the potential in Europe of presently available efficiency technologies to produce fuel savings that greatly exceed the upfront costs of technology and maintenance, and evaluates emerging advanced efficiency technologies that offer even more substantial fuel savings and short payback periods over the long term.


Investigated the impacts of updating three standards in Mexico to align with the international best practices employed in the rest of North America: gasoline and diesel sulfur standards, passenger vehicle emissions standards, and truck and bus emissions standards. 


Synopsis of new fuel-efficiency standards for diesel-powered trucks and buses with a gross vehicle weight of 12 tonnes or more that will go into effect beginning 1 April 2018.


A statistical portrait of passenger car, light commercial, and heavy-duty vehicle fleets in the European Union from 2001 to 2016, with emphasis on vehicle technologies, fuel consumption, and emissions of greenhouse gases and other air pollutants.


In September, China’s Ministry of Environmental Protection issued the first national standard for portable emission measurement system (PEMS) testing of heavy-duty vehicles (HDVs). This regulation is a supplement to all existing requirements under the China V standard, and it requires additional on-road PEMS testing for new and in-use China V HDVs.


Provides information on market dynamics, opportunities and barriers for truck fuel-saving technologies and operational measures, and the potential benefits of building a more robust and extensive Transporte Limpio program, and harmonizing it with the SmartWay program in the U.S.


Assesses zero-emission heavy-duty vehicle technologies to support decarbonization of the freight sector in the 2025–2030 timeframe. Synthesizes data from the research literature, demonstrations, and low-volume commercial trucks regarding their potential to deliver freight with zero tailpipe emissions. Analyzes the emerging technologies by their cost of ownership and life-cycle greenhouse gas emissions for China, Europe, and the United States.


Summarizes provisions of the first national-level remote sensing regulation adopted by China for diesel vehicles.


Analyzes the benefits of establishing separate engine CO2 standards in addition to full-vehicle regulations to specifically drive improvements in heavy-duty engine efficiency. Outlines a possible pathway for the development and implementation of separate engine CO2 standards for heavy-duty vehicles within the regulatory framework of the European Union.


Evaluates well-to-wheel greenhouse gas emissions from soot-free urban transit bus types in 20 megacities.


Reveals that the efforts made by multiple Transport Task Group (TTG) countries to promote and support policies and programs—including stringent tailpipe emissions standards, fuel economy standards, low sulfur fuels, and green freight programs—are in good alignment with the long-term perspective and pathways of the Transport Task Group defined in the G20 Energy Efficiency Leading Programme.


Summarizes provisions of the implementing act adopted in May 2017 by the European Union for type-approval of CO2 emissions and fuel consumption of on-road heavy-duty vehicles, which will go into effect in 2019 and 2020.


Examines the HDV market in China and investigates the potential for currently sold vehicles to reduce fuel consumption through the adoption of known efficiency technologies. 


Assesses, through vehicle simulation modeling, the baseline fuel efficiency performance and the potential of various fuel saving technologies to improve the efficiency of European tractor-trailers and rigid trucks, in the 2020–2030 timeframe.


Summarizes the key barriers that impede the adoption of fuel-saving technologies in the trucking sector and discusses some of the ways policymakers can combat them.


Summarizes the key elements of the proposed regulation to reduce greenhouse gas (GHG) emissions from new on-road heavy-duty vehicles, including the major vehicle and equipment categories, estimated costs and benefits, and Canada-specific provisions.


Summarizes important features and experiences of successful retrofit program efforts primarily in the U.S. and Europe, and also highlights the range of retrofit technologies that have been successfully used to reduce exhaust emissions (including diesel particulate and NOX emissions) from older, existing on-road and off-road diesel engines.