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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

2019 Proposed Updates to Special Trackwork Elements

Rail operators who report annually to the National Transit Database (NTD) file the A-20 form, which currently collects the following special track work categories: Half grand union, single turnout, single crossover, and double diamond crossover.

On April 9, 2019, FTA issued a Federal Register Notice which, among other proposed changes, recommends the following modifications to this form: 

(1) remove half grand union

(2) rename double diamond crossover to double crossover, and

(3) include three new special track work categories: Slip switch, lapped turnout, and rail crossing.

Proposed modifications and definitions for 2019 special trackwork categories are found in the attached document.

Last updated: Tuesday, April 9, 2019
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