Signal and Train ControlRULES, STANDARDS, AND INSTRUCTIONS (R,S&I)

STC – 6

Protective Devices

Subpart F

§ 236.601 Dragging Equipment and Slide Detectors and Other Similar Protective Devices

Signals controlled by devices used to provide protection against unusual contingencies, such as landslides, dragging equipment, burned bridges or trestles and washouts shall be located so that stopping distance will be provided between the signal and the point where it is necessary to stop the train. 

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Learning Objectives
        - Understand that these regulations are engineering design standards and must be incorporated into the design of any on-board signal system.
        - Understand that actions taken during the installation, maintenance, or modification of the system must not negate these design standards.	

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CAUTION

The following presentation was developed to provide general information only. For detailed compliance information please refer to 49 CFR 236 – Rules, Standards and Instructions, Subpart E and the S&TC technical manual.  It is recommended that each employee refer to appropriate manuals and regulations when dealing with any specific issue.

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When in doubt, go to the book!

Information

The FRA Rules, Standards, and Instructions are considered to be the minimum standard allowed for the installation, inspection, maintenance, and repair of signal and train control systems, devices, and appliances.  Each railroad may adopt more stringent standards. Refer to your railroad’s signal standard and instruction manual for further guidance.

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236.601 Signals controlled by devices; location.

Signals controlled by devices used to provide protection against unusual contingencies, such as landslides, dragging equipment, burned bridges or trestles and washouts shall be located so that stopping distance will be provided between the signal and the point where it is necessary to stop the train.

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This rule requires that signals controlled by devices to protect against unusual contingencies, such as landslides, dragging equipment, washouts, etc., shall be located so that stopping distance will be provided between the signal and the point where it is necessary to stop the train.

This rule is applicable to all signals or systems governing the movement of trains into one or more blocks that are not covered in Subparts B, C, D, and E of Part 236.

Part 236, Subpart A, contains the applicable sections to use when citing defective conditions of devices or systems covered by this rule.

Such protective devices are installed as safety features and shall not be removed without approval of FRA unless the condition that warranted their installation ceases to exist.  If for some reason the signals or devices are removed from service for a temporary period the carrier shall take appropriate measures to protect safety of train operation.

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236.601 Signals controlled by devices; location.

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Detected Event

Adequate Stopping Distance

Dragging Equipment Detector

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Slide Detector

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High Water Detector

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High/Wide load Detectors

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Wash Out Detector

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Acoustic Bearing Detector

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Hot Bearing Detector

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Truck Bogie Optical Geometry Inspection

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Broken Wheel Detector

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Continuous Welded Rail Buckling Detector

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Cracked Wheel Detector

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S&TC  FUNDAMENTALS

49 CFR 236

Subpart F

Protective

Devices

The End

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