National Signal Technology, Inc.

Providing Quality Signal Engineering Service Since 1991

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Signal Engineering

Mainline Railroad

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Highway Crossings

As Installed Drawings

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NST has designed numerous crossings for North American railroads including both new designs and retrofit applications. We have applied the full range of various supplier products ranging from AF overlays, to motion sensors and predictors, and solid state controllers. From single track crossings to modern four quadrant applications, we have the design skills you require for any crossing project.