Author: David Lester

Preventive to Prescriptive to Predictive

Railway Age, June 2019 Issue, The Evolution in Track Geometry Technology: As railroaders know, establishing and maintaining proper track geometry requires frequent attention to maintain safe and fluid operation. Despite best efforts, derailments will occasionally occur due to geometry exceptions, prompting track engineers to look for more effective methods of correcting issues before they become problems.

BOOK REVIEW: Diesel-Electric Locomotives – How They Work, Use Energy, and Can Become More Efficient and Environmentally Sustainable

While the documentation of diesel locomotives is extensive, Walter Simpson’s new book brings a fresh perspective to the literature. The book is an excellent primer on diesel locomotives that is well-illustrated with photographs and color-coded drawings of diesels and their parts. However, the underlying theme of the book is locomotive energy efficiency, fuel economy and the Environmental Protection Agency’s emissions standards, leading to Tier 4 compliance. There is also a chapter on the environmental sustainability of railroads.