Allison Transmission recently announced the integration of the Allison 4000 Series transmission with a Class 8 truck equipped with a hydrogen internal combustion engine displayed by Southwest Research ...

Cambridge, MA – Any motorist who has ever waited through multiple cycles for a traffic light to turn green knows how annoying signalized intersections can be. But sitting at intersections isn’t just a ...

Emissions-control technology for mobile sources has developed in a series of interactive steps with the promulgation of emissions standards for new vehicles and engines and for fuel regulation. For ...

Gasoline, diesel, natural gas and propane continue to be the primary fuel and technology choices for U.S. commercial trucks, with the population of advanced technology near-zero emissions diesels ...

Certain vehicles now face tougher emissions checks under updated federal rules, and that could affect which cars get extra testing at the dealership or inspection station. If you own or sell a light- ...

Coverage terms in an emission warranty vary by component. Most emissions-related parts are covered for two years or 24,000 ...

Across the United States, the rules for checking tailpipe pollution are quietly shifting, even as climate targets grow more ambitious and electric vehicles grab headlines. States are carving out ...

Sustainable transportation refers to transportation methods that minimize environmental impact while still safely and efficiently moving people and goods. While the primary focus is on reducing ...

Air pollutant emissions from mobile sources have been regulated for almost half a century. During this time, the focus has largely been on tightening emissions standards for on-road vehicles and ...