Alstom sells North American signal business to Knorr-Bremse

Alstom logo

SAINT-OUEN-SUR-SEINE, France — Alstom will sell its North American signal business to Knorr-Bremse of Germany for about €630 million, or about $671 million, the companies announced today. The sale, which Alstom describes as covering the conventional portion of its North American signaling business, is part of a plan announced in November to sell up to […]

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Wabtec to work with Australia’s ARTC on interoperability

Map of Australia highlighting selected rail lines

PITTSBURGH — Wabtec will work with the Australian Rail Track Corp. to help develop interoperability of the country’s rail system, the two companies have announced. Wabtec will work to develop the interoperability standard between ARTC’s Advanced Train Management System and European Rail Traffic Management System 2, also used in Australia. “ARTC recognizes the complex challenge […]

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Metra gears up for 2024 construction season

Metra Electric train arriving at station

CHICAGO — With spring having arrived, at least according to the calendar, commuter operator Metra on Wednesday outlined plans for capital projects planned for the 2024 construction season. The Metra budget calls for $332.4 million in projects this fiscal year, including $140.7 million for bridge projects; $81.6 million for station and parking improvements; $66.2 million […]

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Siemens lands contract for Toronto-area passenger infrastructure maintenance

Metrolinx logo

TORONTO — Siemens Mobility has been awarded a contract by Ontario transportation agency Metrolinx to handle track, signal, and right-of-way maintenance for the Central Region of Toronto’s passenger rail infrastructure system, Siemens has announced. Siemens already has a similar contract in the West Region and handles signal and communications services at the Metrolinx Network Operations. […]

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OS block control using an Arduino microcontroller

A railroad dispatch schematic with a train passing another on a siding

The following project is an update of Gary D. Patterson’s “Simplified CTC signals” in the July 1988 issue of MR. Bringing the project up to date was a large endeavour. The block control project now incorporates “all” solid-state components controlled by an Arduino microcontroller. I refer to this updated article as “CTC Signals 2.0.” The […]

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Train operation 101: How trains are controlled

diverging railroad lines form a y-shaped junction in the woods. An orange diesel occupies the left track, a green and white diesel the one on the right.

Modern day train operations are largely controlled by train dispatchers or control operators. A dispatcher directly controls all movements on a given piece of track, while a control operator typically handles movement on a smaller piece of trackage — operating under the direction of a dispatcher. Control operators can typically be found at interlockings, or […]

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Train signals and interlockings unraveled

purple sky with train moving fast

Train signals All dark, two silent sentinels guard their respective tracks on the double-track main line. Just beyond them is a crossover enabling trains to switch from one track to another. Beyond the crossover, a similar set of signals faces the opposite way. Suddenly, the dark signals light up, each displaying three columns of red […]

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MTA details projects at risk without congestion pricing funds

Long Island Rail Road train arrives at station

NEW YORK — The Metropolitan Transportation Authority, which had previously announced it was placing much of its capital spending on hold because of uncertainty over implementation of Manhattan’s congestion pricing plan, on Monday detailed the projects at risk while the lawsuits against congestion pricing are pending. Congestion pricing, intended to discourage driving in Manhattan below […]

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