Orami01/Test3 · Datasets at Hugging Face

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Except for situations where multiple railroads or urban rapid transit operators
operate trains on separate tracks through the same crossing, if more than one
operating railroad operates trains through a single highway-rail or pathway
crossing, the primary operating railroad is responsible for submitting and
updating crossing data on behalf of all the operating railroads that operate
through the crossing.
Note: The primary operating railroad is the operating railroad that either owns
or maintains the track through the highway-rail or pathway crossing, unless the
crossing is located within a private company, port, or dock area. If more than
one operating railroad either owns or maintains the track through the highwayrail or pathway crossing, or if no operating railroad owns or maintains the track
through the highway-rail or pathway crossing, then the operating railroad that
operates the highest number of trains through the crossing is the primary
operating railroad. In the event that there is only one operating railroad that
operates one or more trains through a highway-rail or pathway crossing, that
operating railroad is the primary operating railroad.

Where multiple railroads or urban rapid transit operators operate trains on
separate tracks through the same crossing, each railroad or urban rapid transit
operator must submit crossing data to the Crossing Inventory (see Part I, Item 7
above), and each must place its name in the field titled “Primary Operating
Railroad” (this links each railroad to the data it has submitted). The primary
operating railroad must submit the rest of the railroad-required data. Except for
the train counts, the National Crossing Inventory Record will reflect the data for
the primary operating railroad.
The FRA data management system will combine the critical data (such as train
counts) to produce a combined Crossing Inventory Record for the crossing for
analyzing the risk along with providing the individual records for each of the
operating railroads. Each railroad must place its name in the field titled
“Primary Operating Railroad” in Part 1, Box 1, in order to make clear which
record belongs to which railroad.
Each Inventory Form submitted by multiple operating railroads for the same
crossing will have the same crossing inventory number.
See the Figure below for an example of which fields must be completed and
Appendix C-2
updated by each railroad or urban rapid transit operator that operates trains on
separate tracks through the same crossing.
Appendix C-3
Areas highlighted in yellow are the fields required to be completed:
Appendix D-1
APPENDIX D – Definitions
Adjacent Crossings – grade crossings with separate Crossing Inventory Numbers,
with their own separate warning devices, on the same vehicular highway or pathway,
where the distance between the inside rail of each crossing, as measured along the
highway or pathway, does not exceed 100 feet.
Annual Average Daily Traffic (AADT) – a figure that represents the amount of vehicles
traveling past a known location on a roadway for a year, divided by 365 days. In the
event that 365 consecutive days of traffic counts are not available, there are traffic
engineering calculations that can be used to develop a representative figure for AADT
based upon traffic counts of shorter duration.
Back Lights – a flashing light pair on the far side of the crossing, typically mounted 180
degrees on the signal mast or cantilever structure from the flashing light pair of the near
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.

Except for situations where multiple railroads or urban rapid transit operators

operate trains on separate tracks through the same crossing, if more than one

operating railroad operates trains through a single highway-rail or pathway

crossing, the primary operating railroad is responsible for submitting and

updating crossing data on behalf of all the operating railroads that operate

through the crossing.

Note: The primary operating railroad is the operating railroad that either owns

or maintains the track through the highway-rail or pathway crossing, unless the

crossing is located within a private company, port, or dock area. If more than

one operating railroad either owns or maintains the track through the highwayrail or pathway crossing, or if no operating railroad owns or maintains the track

through the highway-rail or pathway crossing, then the operating railroad that

operates the highest number of trains through the crossing is the primary

operating railroad. In the event that there is only one operating railroad that

operates one or more trains through a highway-rail or pathway crossing, that

operating railroad is the primary operating railroad.

Where multiple railroads or urban rapid transit operators operate trains on

separate tracks through the same crossing, each railroad or urban rapid transit

operator must submit crossing data to the Crossing Inventory (see Part I, Item 7

above), and each must place its name in the field titled “Primary Operating

Railroad” (this links each railroad to the data it has submitted). The primary

operating railroad must submit the rest of the railroad-required data. Except for

the train counts, the National Crossing Inventory Record will reflect the data for

the primary operating railroad.

The FRA data management system will combine the critical data (such as train

counts) to produce a combined Crossing Inventory Record for the crossing for

analyzing the risk along with providing the individual records for each of the

operating railroads. Each railroad must place its name in the field titled

“Primary Operating Railroad” in Part 1, Box 1, in order to make clear which

record belongs to which railroad.

Each Inventory Form submitted by multiple operating railroads for the same

crossing will have the same crossing inventory number.

See the Figure below for an example of which fields must be completed and

Appendix C-2

updated by each railroad or urban rapid transit operator that operates trains on

separate tracks through the same crossing.

Appendix C-3

Areas highlighted in yellow are the fields required to be completed:

Appendix D-1

APPENDIX D – Definitions

Adjacent Crossings – grade crossings with separate Crossing Inventory Numbers,

with their own separate warning devices, on the same vehicular highway or pathway,

where the distance between the inside rail of each crossing, as measured along the

highway or pathway, does not exceed 100 feet.

Annual Average Daily Traffic (AADT) – a figure that represents the amount of vehicles

traveling past a known location on a roadway for a year, divided by 365 days. In the

event that 365 consecutive days of traffic counts are not available, there are traffic

engineering calculations that can be used to develop a representative figure for AADT

based upon traffic counts of shorter duration.

Back Lights – a flashing light pair on the far side of the crossing, typically mounted 180

degrees on the signal mast or cantilever structure from the flashing light pair of the near

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.