Minnesota Administrative Rules
Agency 175 - Transportation Department
Chapter 8830 - RAILROADS
SIGNS, SIGNALS, OTHER SAFETY MEASURES
Part 8830.1400 - FLASHING LIGHT UNITS

Universal Citation: MN Rules 8830.1400

Current through Register Vol. 49, No. 13, September 23, 2024

Subpart 1. Standard.

Flashing light units consist of two horizontally mounted red lights flashing alternately at predetermined levels. Design criteria for flashing light units must comply with the AREMA signal manual.

Subp. 2. Horizontal and vertical installation.

Flashing light units must be mounted in accordance with the MMUTCD. Use of cantilevered flashing light units that are mounted on the arm projecting over the roadway must comply with the MMUTCD.

Subp. 3. Size and design.

Lamp units must be 12 inches (300 millimeters) in diameter, must be hooded to shade them from the sun but not shielded at the sides to impair close-in indication, and must have nonreflecting black backgrounds 20 to 24 inches (500 to 600 millimeters) in diameter. The light units must flash alternately. The number of flashes per minute for an incandescent-type lamp must comply with the MMUTCD. Lamps must be illuminated approximately the same length of time.

Subp. 4. Alignment.

Alignment of flashing light units must be accomplished by the rail carrier in accordance with the recommended practice set forth in Code of Federal Regulations, title 49, section 234.217, paragraph (a), as amended.

Statutory Authority: MS s 218.071; 219.073; 219.165; 219.17; 219.384; 222.50; 222.58; 222.63

Disclaimer: These regulations may not be the most recent version. Minnesota may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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