Code of Massachusetts Regulations
521 CMR - Architectural Access Board
Title 521 CMR 18 - Transportation Terminals
Section 18.10 - AT GRADE CROSSINGS

Universal Citation: 521 CMR 18 MA Code of Regs 18.10
Current through Register 1531, September 27, 2024

Where public sidewalks cross rail systems at grade, the surface of the continuous passage shall be level and flush with the rail top at the outer edge and between the rails. The horizontal gap on the inner edge of each rail shall be the minimum necessary to allow passage of wheel flanges and shall not exceed 21/2 inches (21/2" = 64mm). Where tracks cross a sidewalk, 24 inch (24" = 610mm) wide detectable warnings complying with 521 CMR 18.4.2a shall be placed on both sides of the tracks across the entire width of the sidewalk, at a sufficient distance from the tracks to allow clearance for the widest vehicle using those tracks. Where multiple tracks are part of the same level crossing, detectable warnings should be placed alongside the outermost track, and not within the sets of tracks.

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