Railroad Structures and Estimates

Cluster Estimates for Modular Structures

The cluster theorem of relativistic quantum field theory expresses the decay of correlations between clusters of local observables as the space-like separation between clusters increases. In 3 + 1 dimensions the correlations of the vacuum expectation values of local observables decrease at least like δ if δ is their space-like separation [AHR]. In the presence of a massgap one even finds an exp...

Railroad Transportation

Railroad Safety and Public Policy

This paper discusses the safety challenges faced by railroads in the United States. It discusses and evaluates public policy dealing with trespassing, grade crossing collisions, occupational injuries and operational accidents. The primary conclusion is that the government oversight body, the Federal Railroad Administration (FRA), should take on the role of teacher and risk analyst rather than t...

Trespassing on the Railroad

Greater than half of all the fatal injuries on United States railroads are sustained by trespassers. The paper provides a statistical analysis of the demographics of trespassers, the activities they were engaged in, and the causes of injury. It also analyzes trends over time. The paper finds that the risks of injury and death are particularly acute for males in their 20s and 30s. The annual cas...

[Insane railroad workers].