grade separation

American  

noun

1. separation of the levels at which roads, railroads, paths, etc., cross one another in order to prevent conflicting rows of traffic or the possibility of accidents.

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Etymology

Origin of grade separation

An Americanism dating back to 1930–35

Example Sentences

It dates back to 1976, when longtime Eastside Councilmember Art Snyder secured funds for its creation as part of a grade separation project for the railroad tracks that serve as Lincoln Height’s southern border.

From Los Angeles Times • Jan. 4, 2023

Transit-board member Claudia Balducci of Bellevue, who chairs the system expansion committee, called the Rainier Valley segment “an outlier” that produces too many collisions, making grade separation a fair long-term question.

From Seattle Times • Jun. 19, 2022

In Red Wing, city officials requested $10.5 million to complete a rail grade separation project for a busy four-lane roadway that intersects the Canadian Pacific Railroad.

From Washington Times • Jul. 11, 2020

We could expect less environmentally sound approaches that include less grade separation to reduce congestion, less light-rail service in dense urban areas where it’s most efficient and fewer transit-oriented development opportunities.

From Seattle Times • Oct. 7, 2016

A grade separation was made on the West Side Highway near Votaw, wherein a wooden trestle was constructed to carry the Southern Pacific line above the roadway.

From Third Biennial Report of the Oregon State Highway Commission Covering the Period December 1st, 1916 to November 30th, 1918 by Benson, S.