Trinity Industries is a diversified industrial company based in Dallas, TX. The company owns market-leading businesses offering? rail transportation products and services in North America. The rail-related business (operating under the trade name TrinityRail) offers railcar leasing and management services, railcar manufacturing, and railcar maintenance and modification services. Additionally, the company owns transportaton businesses that offers suporting services to Trinity among other industrial manufacturers. The company also owns businesses that are involved in manufacturing products used on the roadways and in traffic control.