Orami01/Test3 · Datasets at Hugging Face

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Simultaneous preemption is defined in the MUTCD as notification of approaching rail
traffic that is forwarded to the highway traffic signal controller unit or assembly and
railroad active warning devices at the same time.
Simultaneous preemption results in the initiation of the highway traffic signal cycle at the
same time the highway-rail grade crossing warning system is activated.
Advance preemption is defined in the MUTCD as notification of approaching rail traffic
that is forwarded to the highway traffic signal controller unit or assembly by the railroad
equipment in advance of the activation of the railroad warning devices.
Advance preemption results in the initiation of the highway traffic signal cycle before the
highway-rail grade crossing active warning system is activated.
5. Highway Traffic Pre-Signals
Figure 2-75: U.S. DOT-FRA Crossing Inventory Form Part III, Item 5
Check the “Yes” box to indicate if highway traffic pre-signals are installed. Check the
“No” box if there are none. The “Storage Distance” and “Stop Line Distance” fields are
optional. Use feet as the measuring unit.
Pre-signals are used to control traffic approaching a grade crossing in conjunction with
the highway traffic control signal faces that control traffic approaching a highwayhighway intersection beyond the tracks. Pre-signals may be located on either the near
or far side of the railroad tracks, and may be mounted on the same cantilever structures
as the railroad’s flashing light warning devices.
 “Storage Distance” (for pre-signals only) is the distance available for vehicle
storage as measured 6 feet from the rail nearest the intersection to the
intersection stop line or the normal stopping point on the roadway.
Highway-Rail Crossing Inventory Instruction and Procedures Manual
39
Instructions for Completing the U.S. DOT Crossing Inventory Form
 “Stop Line Distance” (for pre-signals only) is the distance between the stop line
and the crossing gates. This field should be left blank if the crossing is not
equipped with gates.
6. Highway Monitoring Devices
Figure 2-76: U.S. DOT-FRA Crossing Inventory Form Part III, Item 6
Check all boxes that apply. Note: The temporary installation of highway
monitoring devices (e.g., for research purposes) should not be reported to the
Crossing Inventory.
 “Check the “Yes” box if “Photo/Video Recording” is present at the crossing.
Photo/Video Recording is the use of high-resolution cameras to photograph or
record motorists driving under or around railroad crossing gates. The camera
equipment is typically mounted in a 12-foot-high bullet-resistant cabinet. There
may be signs, installed on all street approaches to the crossing, that inform
motorists that photo citations are being issued to violators at the crossing. Note
– The temporary installation of photo/video recording devices (e.g., for research
purposes) are not to be reported.
 Check the “Yes” box if “Vehicle Presence Detection” is present at the crossing.
Vehicle Presence Detection is system capable of detecting and reporting in real
time the presence of a vehicle on the crossing. An example includes a series of
looped wire, coils, or magnetometers that are placed below ground level within
the field side and gauge side of the railroad tracks, at a distance between the
approach gate and the exit gate. The loop detectors or magnetometers use a
magnetic effect caused by the presence of a roadway vehicle, which then sends
a signal to the exit gate to remain in the up position, or can send a signal to the
train operator that a vehicle is still occupying the restricted area of the grade
crossing.
 Check the “None” box if neither Photo/Video Recording nor Vehicle Presence
Detection are at the crossing or if the crossing is passive.
 Note: This field applies for crossings with train-activated warning devices. If
monitoring is conducted at passive crossings, it should be noted in Part I, Box 30
or 31, as appropriate.
Highway-Rail Crossing Inventory Instruction and Procedures Manual
40
Instructions for Completing the U.S. DOT Crossing Inventory Form
5. Part IV – Physical Characteristics
Figure 2-77: U.S. DOT-FRA Crossing Inventory Form Part IV, Physical Characteristics
1. Traffic Lanes Crossing Railroad
Figure 2-78: U.S. DOT-FRA Crossing Inventory Form Part IV, Item 1
Enter the number of through traffic lanes crossing the track. Do not include shoulders
or lanes that are used for parking. Check the box that describes the type of roadway. If
channelization devices are present at the crossing, then it can only be classified as
“Two-way Traffic.”
 “One-way Traffic” – Where highway motor vehicles travel in the same direction
over the same roadway.
 “Two-way Traffic” – Where highway motor vehicles travel in two opposite
directions over the same roadway.
 “Divided Traffic” – Where roadway traffic moving in opposite directions is
separated by a median sufficient to prevent movement across it into opposing
traffic.
Note: Divided traffic refers to the characteristics of the entire roadway, not simply at the
crossing.
2. Is Roadway/Pathway Paved?
Figure 2-79: U.S. DOT-FRA Crossing Inventory Form Part IV, Item 2
Check “Yes” if the highway or pathway is paved with material on which pavement
markings can be effectively maintained. Check “No” if the highway or pathway surface
is gravel, dirt, or has a surface treatment on which pavement markings cannot be
maintained. If the entire road or pathway is not paved, the roadway or pathway
Highway-Rail Crossing Inventory Instruction and Procedures Manual
41
Instructions for Completing the U.S. DOT Crossing Inventory Form
pavement through the crossing must extend far enough beyond the railroad tracks to be
able to accept railroad pavement markings, nominally about 100 feet, to be considered
“Yes” for this Item. If pavement markings are indicated in Part III.2.F., then this item
must be checked “Yes.”
3. Does the Track Run Down a Street?
Figure 2-80: U.S. DOT-FRA Crossing Inventory Form Part IV, Item 3
Figure 2-81: Example of a track that runs down a street.
Check “Yes” if the crossing involves a railroad track that is embedded within the
pavement of a roadway that crosses another roadway at grade, such that trains
operating on those tracks will cross the intersecting roadway. In addition, the “Yes” box
may be checked if the tracks run alongside the roadway in the same direction as
roadway vehicles, and if the tracks are located within or adjacent to the roadway rightof-way. In both cases, the crossing to be inventoried will be the crossing of the tracks
with the intersecting roadway, not the roadway within or adjacent to the street where the
tracks are running.
Check “No” if the tracks and crossties are in a semi-exclusive right-of-way with exposed

Simultaneous preemption is defined in the MUTCD as notification of approaching rail

traffic that is forwarded to the highway traffic signal controller unit or assembly and

railroad active warning devices at the same time.

Simultaneous preemption results in the initiation of the highway traffic signal cycle at the

same time the highway-rail grade crossing warning system is activated.

Advance preemption is defined in the MUTCD as notification of approaching rail traffic

that is forwarded to the highway traffic signal controller unit or assembly by the railroad

equipment in advance of the activation of the railroad warning devices.

Advance preemption results in the initiation of the highway traffic signal cycle before the

highway-rail grade crossing active warning system is activated.

5. Highway Traffic Pre-Signals

Figure 2-75: U.S. DOT-FRA Crossing Inventory Form Part III, Item 5

Check the “Yes” box to indicate if highway traffic pre-signals are installed. Check the

“No” box if there are none. The “Storage Distance” and “Stop Line Distance” fields are

optional. Use feet as the measuring unit.

Pre-signals are used to control traffic approaching a grade crossing in conjunction with

the highway traffic control signal faces that control traffic approaching a highwayhighway intersection beyond the tracks. Pre-signals may be located on either the near

or far side of the railroad tracks, and may be mounted on the same cantilever structures

as the railroad’s flashing light warning devices.

 “Storage Distance” (for pre-signals only) is the distance available for vehicle

storage as measured 6 feet from the rail nearest the intersection to the

intersection stop line or the normal stopping point on the roadway.

Highway-Rail Crossing Inventory Instruction and Procedures Manual

39

Instructions for Completing the U.S. DOT Crossing Inventory Form

 “Stop Line Distance” (for pre-signals only) is the distance between the stop line

and the crossing gates. This field should be left blank if the crossing is not

equipped with gates.

6. Highway Monitoring Devices

Figure 2-76: U.S. DOT-FRA Crossing Inventory Form Part III, Item 6

Check all boxes that apply. Note: The temporary installation of highway

monitoring devices (e.g., for research purposes) should not be reported to the

Crossing Inventory.

 “Check the “Yes” box if “Photo/Video Recording” is present at the crossing.

Photo/Video Recording is the use of high-resolution cameras to photograph or

record motorists driving under or around railroad crossing gates. The camera

equipment is typically mounted in a 12-foot-high bullet-resistant cabinet. There

may be signs, installed on all street approaches to the crossing, that inform

motorists that photo citations are being issued to violators at the crossing. Note

– The temporary installation of photo/video recording devices (e.g., for research

purposes) are not to be reported.

 Check the “Yes” box if “Vehicle Presence Detection” is present at the crossing.

Vehicle Presence Detection is system capable of detecting and reporting in real

time the presence of a vehicle on the crossing. An example includes a series of

looped wire, coils, or magnetometers that are placed below ground level within

the field side and gauge side of the railroad tracks, at a distance between the

approach gate and the exit gate. The loop detectors or magnetometers use a

magnetic effect caused by the presence of a roadway vehicle, which then sends

a signal to the exit gate to remain in the up position, or can send a signal to the

train operator that a vehicle is still occupying the restricted area of the grade

crossing.

 Check the “None” box if neither Photo/Video Recording nor Vehicle Presence

Detection are at the crossing or if the crossing is passive.

 Note: This field applies for crossings with train-activated warning devices. If

monitoring is conducted at passive crossings, it should be noted in Part I, Box 30

or 31, as appropriate.

Highway-Rail Crossing Inventory Instruction and Procedures Manual

40

Instructions for Completing the U.S. DOT Crossing Inventory Form

5. Part IV – Physical Characteristics

Figure 2-77: U.S. DOT-FRA Crossing Inventory Form Part IV, Physical Characteristics

1. Traffic Lanes Crossing Railroad

Figure 2-78: U.S. DOT-FRA Crossing Inventory Form Part IV, Item 1

Enter the number of through traffic lanes crossing the track. Do not include shoulders

or lanes that are used for parking. Check the box that describes the type of roadway. If

channelization devices are present at the crossing, then it can only be classified as

“Two-way Traffic.”

 “One-way Traffic” – Where highway motor vehicles travel in the same direction

over the same roadway.

 “Two-way Traffic” – Where highway motor vehicles travel in two opposite

directions over the same roadway.

 “Divided Traffic” – Where roadway traffic moving in opposite directions is

separated by a median sufficient to prevent movement across it into opposing

traffic.

Note: Divided traffic refers to the characteristics of the entire roadway, not simply at the

crossing.

2. Is Roadway/Pathway Paved?

Figure 2-79: U.S. DOT-FRA Crossing Inventory Form Part IV, Item 2

Check “Yes” if the highway or pathway is paved with material on which pavement

markings can be effectively maintained. Check “No” if the highway or pathway surface

is gravel, dirt, or has a surface treatment on which pavement markings cannot be

maintained. If the entire road or pathway is not paved, the roadway or pathway

Highway-Rail Crossing Inventory Instruction and Procedures Manual

41

Instructions for Completing the U.S. DOT Crossing Inventory Form

pavement through the crossing must extend far enough beyond the railroad tracks to be

able to accept railroad pavement markings, nominally about 100 feet, to be considered

“Yes” for this Item. If pavement markings are indicated in Part III.2.F., then this item

must be checked “Yes.”

3. Does the Track Run Down a Street?

Figure 2-80: U.S. DOT-FRA Crossing Inventory Form Part IV, Item 3

Figure 2-81: Example of a track that runs down a street.

Check “Yes” if the crossing involves a railroad track that is embedded within the

pavement of a roadway that crosses another roadway at grade, such that trains

operating on those tracks will cross the intersecting roadway. In addition, the “Yes” box

may be checked if the tracks run alongside the roadway in the same direction as

roadway vehicles, and if the tracks are located within or adjacent to the roadway rightof-way. In both cases, the crossing to be inventoried will be the crossing of the tracks

with the intersecting roadway, not the roadway within or adjacent to the street where the

tracks are running.

Check “No” if the tracks and crossties are in a semi-exclusive right-of-way with exposed