Adobe Photoshop Lightroom basics

Abobe Photoshop Lightroom Library - Loupe view

Adobe Photoshop Lightroom The view from the Library module of Abobe’s powerful digital image organization and editing software, Photoshop Lightroom. Recognizing the popularity of digital photography and the need to keep collections organized, Adobe released Photoshop Lightroom in early 2007. This software offers a user-friendly interface that lets you store, locate, sort, and edit your […]

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Track inspection 101: Four key essentials

Railwelding

Track inspection No. 1: Know thy thermal forces! For John Zuspan, principal at Track Guy Consultants, the most important takeaway for any student in his introductory track inspection course is that rail forces increase with temperature changes. So, knowing that the rail can move (compress or tense), even in moderate temperatures, means knowing that track […]

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Crossties 101

Railroad ties are pushed out of freight car onto ground next to right-of-way

Crossties Back in 1830, track structure was different from today: stone blocks supported wood stringers (or rails) surfaced with strap iron. During the harsh winter of 1832, shipments of stone blocks to the Camden & Amboy Railroad in New Jersey were curtailed. John L. Stevens, president and chief engineer of the railroad, ordered the substitution […]

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A diesel locomotive’s family tree

Black switch engine with silver stripes

Diesel locomotives Elvis Presley may have had just one broken heart for sale back in 1963, but when it comes to the number of types of diesel locomotives built in the last three decades that you can find on most Class 1 railroads, the right number is five: switchers, light road-switchers, medium road-switchers, high-horsepower road-switchers, […]

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Dynamic braking 101

Wide-field image of an orange locomotive in a barren mountain scene.

The dynamics of dynamic braking A half-century ago, when diesel locomotives were replacing steam engines, a revolutionary breakthrough — dynamic braking — was making freight operations safer and more efficient. Dynamic braking is the method of train braking whereby the kinetic energy of a moving train is used to generate electric current at the locomotive […]

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Train orders 101

Train orders The train order, variously called the “flimsy” or the “tissue” — together with its attendant operators, train order offices, and order hoops — has been rendered obsolete by the radio, the computer, and amended work rules. With its passing in the late 1980s, so did a whole concept of railroad traffic control that […]

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Understanding brake horsepower in diesel locomotives

Drum-shaped equipment from inside a diesel locomotive

An EMD AR20 alternator from CSX SD70MAC 4549 at the railroad’s Huntington, W.Va., shop. Chris Guss Understanding brake horsepower: Diesel engines, like all engines, are built to perform a specific function. In a locomotive, that role is to provide power to move freight cars from one place to another. When buying locomotives, one thing management […]

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Blue flags save lives

A blue sign reading stop, men at work, is clamped to a rail in a weedy railroad yard

We’ve all seen blue flags. A sign with words “STOP MEN AT WORK” clamped to the head of a rail, or hanging from the side of a locomotive. It was placed there by a railroader working in the area, and the rules of its use are strict and unbending. A blue flag, is defined by […]

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