American history has always been made of the railway. It is a means of transportation and a source of economic growth, and of national unity. The railroads revolutionized the U.S. system, facilitating ...

Abstract: Positive systems, which are systems whose states are always non-negative, can have both positive linear and positive nonlinear approximations that are valid dynamical models in a prescribed ...

Guide rail repairs may slow your commute on Route 581 in Cumberland County tomorrow, on Wednesday, Jan. 14. The Pennsylvania Department of Transportation said repairs will be made from 9 a.m. to 2 p.m ...

Stephen Mattingly, a civil engineering professor at the University of Texas at Arlington, explains why high-speed rail projects in much of the country so often go off track. Dr. Stephen Mattingly ...

America once led the world in railroads, yet decades of political neglect and corporate entanglement left the country with a system that barely functioned. Amtrak operated slowly, arrived late, and ...

After years of setbacks and uncertainty, Austin’s light rail project is now one step closer to fruition. Federal transit officials last week gave Austin Light Rail a key vote of confidence, issuing a ...

Metro officials are working to quickly reinstate their Tap to Exit program after it was paused weeks ago. In the time since, they've noted a troubling increase in safety incidents and crime. The pilot ...

In our Reality Check stories, Charlotte Observer journalists dig deeper into questions over facts, consequences and accountability. Read more. Story idea? RealityCheck@charlotteobserver.com. Charlotte ...