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side of the crossing. |
Channelization Device – a traffic separation system made up of a raised longitudinal |
channelizer with vertical panels or tubular delineators that is placed between opposing |
highway traffic lanes designed to alert or guide traffic around an obstacle or to direct |
traffic in a particular direction. |
Closed Crossing – a location where a previous crossing no longer exists because |
either the railroad tracks have been physically removed, or each pathway or roadway |
approach to the crossing has been physically removed, leaving behind no intersection |
of railroad tracks with either a pathway or roadway. A grade-separated highway-rail or |
pathway crossing that has been physically removed is also considered a closed |
crossing. |
Crossing Inventory – the U.S. DOT National Highway-Rail Crossing Inventory. |
Diagonal Crossing – a highway-rail crossing where the railroad tracks run diagonally |
through the highway-highway intersection, thus bisecting the two roadways. Only one |
Crossing Inventory Number is to be assigned to such locations. |
Event Recorder – a device designed to resist tampering that monitors and records data |
on information at the grade crossing location such as (but not limited to) train speed, |
direction of motion, time, and distance over the most recent timeframe (e.g. last 24 or |
48 hours) of the grade crossing warning system operation. |
Flashing Light Pairs – two red-colored light units that flash alternately at a rate of 45 to |
65 times per minute. The main components of a flashing light pair are the hood, |
background, roundel, lamp, lamp holder, reflector, and housing. The background is 20 |
Appendix D-2 |
or 24 inches in diameter and is painted a nonreflecting black to provide a contrast for |
the red light. The hood is also painted black. |
Gate – an automatically-operated traffic control device which, when activated into a |
horizontal position, is intended to physically impede users such that they are |
discouraged from entering a particular grade crossing. |
Two Quadrant Gates – a gate configuration featuring gates only on entrance lanes |
leading on to the crossing. If a crossing does not have any gates on any exit lanes |
leading off the crossing, then it is to be considered a “two-quadrant gate” crossing. |
Note: A gated crossing on a one-way street is to be considered a “2 Quad” gate |
configuration. |
Three Quadrant Gates – a specific gate configuration featuring gates on all |
entrance lanes leading on to the crossing, but with only one exit leading off the |
crossing that is equipped with a gate. |
Four Quadrant Gates – a specific gate configuration that features gates on all |
entrance and all exit lanes at the crossing. When four quadrant gates are activated |
and fully lowered, all entrance lanes and all exit lanes are blocked by gates . |
Full (Barrier) Resistance Gates – a gate-like device that is specifically designed to |
physically prevent a highway vehicle from entering the crossing area when the |
resistance gate system is fully deployed. |
Median Gates (sometimes referred to as dual entrance gates) – a supplemental |
gate installation located on a roadway’s median (to the left of the travel lanes) that |
works in combination with a gate installed on the outside edge of the roadway (to the |
right of the travel lanes) to jointly provide blockage of multiple lanes on a single |
roadway approach to the crossing, with both gate arm tips meeting (2-foot maximum |
gap) in the middle. |
Grade Crossing – for purposes of the Inventory, either a highway-rail grade crossing, |
pathway grade crossing or pedestrian station grade crossing. |
Highway-Rail Crossing – for purposes of the Crossing Inventory, the location where |
one or more railroad tracks intersect with a public highway, road, street, or private |
roadway, either at-grade or grade-separated, including associated sidewalks. |
A crossing includes those tracks that lie within the same pair of warning devices. Thus, |
an intersection of a roadway with 3 tracks (2 mainline and 1 spur) where the mainline |
tracks have flashing lights and the spur track has crossbucks would be considered two |
crossings with two separate crossing inventory numbers. One crossing would consist of |
the mainline tracks with the flashing lights and one crossing would consist of the spur |
track that has crossbucks. |
Appendix D-3 |
Highway-Rail Grade Crossing – for purposes of the Crossing Inventory, a highway-rail |
crossing that is at the same grade level as the railroad tracks. |
Inventory Form – the U.S. DOT Crossing Inventory Form (Form FRA F 6180.71). |
Inventory Number – the number assigned to a highway-rail crossing or pathway |
crossing in the Crossing Inventory. |
Median – a non-traversable portion of a divided highway separating the travel ways for |
traffic in opposite directions. |
MUTCD – the Manual on Uniform Traffic Control Devices published by the Federal |
Highway Administration. |
Open Crossing – a highway-rail crossing or pathway crossing where both railroad |
operations and highway or pathway traffic are possible. |
Operating Railroad – any railroad or urban rapid transit operator that operates one or |
more trains through a highway-rail crossing or pathway crossing on, or connected to, |
the general railroad system of transportation. |
Pathway – a path for authorized users, outside the traveled way and physically |
separated from the roadway by an open space or barrier and either within the highway |
right-of-way or within an independent alignment. Pathways include shared-use paths, |
but do not include sidewalks. |
Pathway Crossing – a pathway that: (1) is explicitly authorized by a public authority or |
a railroad; (2) is dedicated for the use of non-vehicular traffic including pedestrians, |
bicyclists, and others, (3) is not associated with a public highway, road, or street, or a |
private roadway; and (4) crosses one or more railroad tracks either at grade or gradeseparated. However, an area where pedestrians trespass, even routinely, is not |
considered to be a pathway crossing. |
Pathways that are contiguous with, or separate but adjacent to, highway-rail crossings |
are presumed to be part of the highway-rail crossing and are not considered separate |
crossings. However, pathways that are located more than 25 feet from the location |
where a highway, road, or street intersects with one or more railroad tracks are |
generally considered to be separate pathway crossings. |
Pathway Grade Crossing - for purposes of the Crossing Inventory, a pathway crossing |
that is at the same grade level as the tracks. |
Pedestrian Crossing - See Pathway Crossing. |
Appendix D-4 |
Pedestrian Station Crossing (Station, Ped.) – a pathway crossing located within a |
passenger station. |
Pedestrian Station Grade Crossing – a pedestrian station crossing that is at the same |
grade level as the tracks. |
Plant Railroad – a plant or installation that owns or leases a locomotive, uses that |
locomotive to switch cars throughout the plant or installation, and is moving goods |
solely for use in the facility’s own industrial processes. The plant or installation could |
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