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Dispatcher

Dispatcher

A railroad dispatcher directs and coordinates train movements and track authorities within an assigned territory according to operating rules and the method of operation.

Dispatchers communicate with train crews and roadway workers to support safe movement and access to the track.

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Signal System

Signal System

A railroad signal system uses wayside signals, train detection, communications, controls and related equipment to support the safe and efficient movement of trains.

Signal systems may include highway-rail crossing warning systems, wayside signals, interlockings and other technologies designed for the operating environment.

Right-of-Way

Right-of-Way

Railroad right-of-way is the land or property interest used for railroad tracks, drainage, signals, communications, access and related infrastructure.

Work within railroad right-of-way may require railroad authorization, protective measures and coordination to avoid interference with railroad operations.

Washout

Washout

A washout is the erosion or loss of ballast, roadbed or supporting soil caused by moving water, flooding or drainage failure.

Washouts can undermine railroad track and may require emergency stabilization, drainage work, fill placement and track reconstruction.

Track Geometry

Track Geometry

Track geometry describes the physical position and relationship of railroad track components, including gauge, alignment, profile, cross-level and curvature.

Geometry measurements help identify conditions that may require maintenance so track remains within applicable operating standards.

Tamping

Tamping

Tamping is the mechanical compaction of ballast beneath railroad ties to provide uniform support and help establish the desired track geometry.

Tamping is often performed with lifting and lining operations during track surfacing, construction or rehabilitation using specialized equipment such as tampers.

Surfacing

Surfacing

Surfacing is the process of lifting, lining and leveling railroad track to restore its profile, alignment and cross-level.

Surfacing commonly uses specialized maintenance-of-way equipment such as ballast regulators and tampers to adjust the track and compact ballast beneath and around the ties.

Rail Anchor

Rail Anchor

A rail anchor is a track component attached to the rail to help resist longitudinal movement caused by train forces and temperature changes.

Rail anchors work with ties, fasteners and ballast to help maintain the position and stability of jointed or continuously welded rail.

Rail Joint

Rail Joint

A rail joint is the connection between the ends of two rail sections, commonly made with joint bars, bolts and related hardware.

Rail joints allow individual rail sections to be connected but require inspection for wear, looseness, cracking, surface condition and alignment.

Grade Crossing

Grade Crossing

A grade crossing is a location where a roadway or pedestrian route crosses railroad tracks at the same level.

A grade crossing may use passive signs or active warning devices such as flashing lights and gates, depending on its design and requirements.

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