MIAMI--(BUSINESS WIRE)--Ryder System, Inc. (NYSE:R), a leader in commercial fleet management, dedicated transportation, and supply chain management solutions, today announced that it is a platinum sponsor of the 2015 Alternative Clean Transportation (ACT) Expo. The Expo, North America’s largest alternative fuel and clean vehicle technology conference, will be held from May 4 – 7 at the Kay Bailey Hutchison Convention Center in Dallas, Texas. Ryder Vice President of Supply Management and Global