The shale gas revolution in the United States has dropped the price of natural gas (NG) significantly. Combined with new fuel and vehicle technologies, an opportunity exists to expand the use of NG throughout the economy, including in the light-duty fleet of cars and trucks. This expansion could...

The future of interurban public transport will be significantly affected by public sector decisions concerning investment in infrastructure, particularly the construction of new high-speed rail lines in medium-distance corridors where cars, buses, airplanes and conventional trains are the...