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Transit Authority Specifications

Transit authority design criteria, specifications, standard drawings, and construction references for major US transit agencies. Each document opens an embedded viewer with the canonical source link and sibling navigation within its category.

LA Metro

MRDC Rev 6 (2015)

Los Angeles County Metropolitan Transportation Authority — Los Angeles, CA

LA Metro operates the largest transit system in the western US: the B/D heavy-rail subway lines, four light-rail lines (A, C, E, K), the G and J bus rapid transit corridors, and one of the country's biggest bus networks. Capital work is designed to the Metro Rail Design Criteria (MRDC), a multi-section criteria set covering civil, structural, architectural, and systems disciplines, supplemented by systemwide station design policies.

Heavy RailLight RailBusBRT

Local terminology: "Metro Rail Design Criteria (MRDC)" for design criteria

Design criteria manuals covering civil, structural, and systems engineering

MRDC Section 6 — ArchitecturalPDF

Metro Rail Design Criteria, Section 6: Architectural standards for stations and facilities.

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Systemwide Station Design Standards PolicyPDF

Policy establishing consistent station design criteria, layouts, materials and features.

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All categories for LA Metro

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