Locations within Heavy Rail where no clearance exists between fixed wayside structures and moving vehicles operating on tracks.
(Also known as Do-nothing Alternative, Null Alternative.) A planning option of leaving the situation as it already exists. Existing facilities and services are maintained, and existing transportation policies are continued. See also Transportation System Management Alternative. (TRB)
Transportation System Management Alternative.
Planning projection of what the future will be like without any new transportation investments added beyond what is currently under construction.
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Notice of Determination
In planning, a point that represents as intersection of two or more links, highways, or transit lines or a zone centroid; used in trip assignment. (TRB)
A driving assignment, more than three hours long but not longer than seven hours, during either the morning or evening peak periods. Some non-biddable trippers, less than five hours long, are assigned to part-time operators. All other non-biddable trippers are…
A gap in the contact rail that is longer than the distance between the front and rear collector shoes on a vehicle.
Construction minimizing the hazards of fire by the use of non-combustible materials for structural elements or assemblies, and by limiting the amount of combustible materials that are incorporated into the building construction.