Key to Improving Subway Service in New York? Modern Signals

At a subway station deep under Manhattan, a dingy room is filled with rows of antique equipment built before World War II. The weathered glass boxes and cloth-covered cables are not part of a museum exhibit, however — they are crucial pieces of the signal system that directs traffic in one of the busiest subways in the world. Much of the signal equipment at that station, at West Fourth Street, is decades beyond its life span, and it is one of the main culprits plaguing the overburdened subway. As New York City's sprawling subway faces a deepening crisis over delays , the Metropolitan Transportation Authority says that modernizing the signals is a top priority. But the rollout of a new signal network is unfolding at a glacial pace even as the subway system is straining under the demands of a booming ridership. Two decades after the agency began its push to upgrade signals, work has been completed on just one line. At the current pace, transforming every subway line could take half a century and cost $20 billion. The signal system is the hidden, unglamorous backbone of the subway, controlling when trains can move down the tracks. But it is… Read full this story

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