Orami01/Test3 · Datasets at Hugging Face

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Enter the count of cantilevered (or bridged) flashing light structures that are: (1) “Over The Traffic Lanes,” and (2) “Not Over the Traffic Lanes.” Count the number of structures, not the number of flashing light pairs. If cantilevered flashing light structures are not present, enter “0”.

Check the appropriate box to indicate whether the flashing lights are Incandescent or LED.

3.D. Mast-Mounted Flashing Lights (count of masts)

Enter the count of masts that have flashing lights. Count the number of masts, not the number of flashing light pairs. The number of cantilevered structures are not included in the count. If mast-mounted flashing lights are not present, enter “0”.

Check the appropriate boxes to indicate whether the flashing lights are Incandescent or LED, and whether back lights and side lights are included.

When indicating the presence of mast-mounted flashing lights, do not enter the number of crossbuck assemblies (2.A.) at the crossing.




Figure 2-66: Examples of Back Lights and Side Lights

3.E. Total Count of Flashing Light Pairs
Enter the total number of flashing light pairs installed at the crossing, including back lights, side lights, and where cantilever structures are present


Example of 3 pairs Example of 4 pairs


Figure 2-67: Examples of 3 and 4 of flashing light pairs
3.F. Installation Date of Current Active Warning Devices

Figure 2-68: U.S. DOT-FRA Crossing Inventory Form Part III, Item 3.F.
This data field must be updated if train-activated warning devices are installed or upgraded at a public highway-rail grade crossing after March 7, 2015. Using the list below, enter the installation date for the first device encountered (moving from top to bottom).
1. Four quad (or full barrier) gates
2. Three quad gates
3. Gates (normally two quadrant)
4. Flashing lights (standard and cantilever type units)
5. Highway traffic signals, wigwags, bells, or other activated devices
6. Special active warning devices (usually flagman)

Check the “Not Required” checkbox if the active warning devices were installed before March 7, 2015 and the installation date is not provided. Completion of this data field is not required for active warning devices installed prior March 7, 2015; however, if date is known, it is recommended to enter it.


3.G. Wayside Horn

Figure 2-69: U.S. DOT-FRA Crossing Inventory Form Part III, Item 3.G.
Check the “Yes” box if the crossing is equipped with a wayside horn and enter the month and year that the horn or system was installed. Check “No” if the crossing is not equipped with a wayside horn.

3.H. Highway Traffic Signals Controlling Crossing

Figure 2-70: U.S. DOT-FRA Crossing Inventory Form Part III, Item 3.H.
Enter a check in the “Yes” box to indicate that there are highway traffic signals that control highway traffic over the crossing, exclusive of other types of warning devices. For purposes of Item 3.H., “highway traffic signals” refers only to train-activated redamber-green signals that control street traffic over the crossing. Do not count highway signals controlling a nearby intersection even if they are interconnected with the crossing warning devices.

Enter a check in the “No” box if there are none.

3.I. Bells

Figure 2-71: U.S. DOT-FRA Crossing Inventory Form Part III, Item 3.I.
Enter the count of bells (either mechanical or electrical) present at the crossing as part of the warning system. If there are none, enter “0.”

3.J. Non-Train Active Warning

Figure 2-72: U.S. DOT-FRA Crossing Inventory Form Part III, Items 3.J – 3.K

Check the appropriate box if there is “Flagging” or a “Flagman” (a member of the train crew or other person who actively controls the flow of vehicular traffic using handsignaling devices or an Automated Flagger Assistance Device); “Manually Operated Signals” (e.g., dual toned multi-frequency (DTMF)-controlled, push-button activated); “Watchman” (a person assigned to provide warning that is not a member of the train crew); or “Floodlighting” at the crossing. Only floodlighting—which is distinctive from ordinary street lighting in intensity, light distribution, focus, or color—is to be reported. Check “None” if applicable.

3.K. Other Flashing Lights or Warning Devices
Enter the count and type of any other special warning devices at the crossing. For example, this would include wigwags if present. If none are present, enter a count of “0”.


Figure 2-73: U.S. DOT-FRA Crossing Inventory Form Part III, Items 4.A. – 4.C.

4.A. Does nearby Hwy Intersection have Traffic Signals?
Check either the “Yes” or “No” box to indicate whether or not a highway-highway intersection within 500 feet has highway traffic signals.

Note: The distance (500 feet or less) is measured from the nearest rail, not from the centerline of track.

4.B. Hwy Traffic Signal Interconnection
Check all that apply. If “Not Interconnected” is checked, do not check the other two choices.

• “Not Interconnected” – crossings equipped with active warning systems that do not have an electrical connection between the railroad active warning system and the traffic signal controller assembly for the purpose of preemption.
• “For Traffic Signals” – crossings having an electrical connection between the railroad active warning system and the traffic signal controller assembly for the purpose of preemption.
• “For Warning Signs” – signs that are electrically connected to a railroad crossing control circuit that is designed to illuminate the signs upon the approach or presence of a train.




Figure 2-74: Examples of “For Warning Signs”
4.C. Hwy Traffic Signal Preemption
Check the appropriate box for the type of preemption. This field is not applicable if “Not Interconnected” is chosen in field 4.B. and should be left blank.

Preemption is defined in the MUTCD as the transfer of the normal operation of highway traffic signals to a special control mode.

In this instance preemption occurs as a result of a signal received from the railroad active warning device system

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

Enter the count of cantilevered (or bridged) flashing light structures that are: (1) “Over The Traffic Lanes,” and (2) “Not Over the Traffic Lanes.” Count the number of structures, not the number of flashing light pairs. If cantilevered flashing light structures are not present, enter “0”.

Check the appropriate box to indicate whether the flashing lights are Incandescent or LED.

3.D. Mast-Mounted Flashing Lights (count of masts)

Enter the count of masts that have flashing lights. Count the number of masts, not the number of flashing light pairs. The number of cantilevered structures are not included in the count. If mast-mounted flashing lights are not present, enter “0”.

Check the appropriate boxes to indicate whether the flashing lights are Incandescent or LED, and whether back lights and side lights are included.

When indicating the presence of mast-mounted flashing lights, do not enter the number of crossbuck assemblies (2.A.) at the crossing.

Figure 2-66: Examples of Back Lights and Side Lights

3.E. Total Count of Flashing Light Pairs

Enter the total number of flashing light pairs installed at the crossing, including back lights, side lights, and where cantilever structures are present

Example of 3 pairs Example of 4 pairs

Figure 2-67: Examples of 3 and 4 of flashing light pairs

3.F. Installation Date of Current Active Warning Devices

Figure 2-68: U.S. DOT-FRA Crossing Inventory Form Part III, Item 3.F.

This data field must be updated if train-activated warning devices are installed or upgraded at a public highway-rail grade crossing after March 7, 2015. Using the list below, enter the installation date for the first device encountered (moving from top to bottom).

1. Four quad (or full barrier) gates

2. Three quad gates

3. Gates (normally two quadrant)

4. Flashing lights (standard and cantilever type units)

5. Highway traffic signals, wigwags, bells, or other activated devices

6. Special active warning devices (usually flagman)

Check the “Not Required” checkbox if the active warning devices were installed before March 7, 2015 and the installation date is not provided. Completion of this data field is not required for active warning devices installed prior March 7, 2015; however, if date is known, it is recommended to enter it.

3.G. Wayside Horn

Figure 2-69: U.S. DOT-FRA Crossing Inventory Form Part III, Item 3.G.

Check the “Yes” box if the crossing is equipped with a wayside horn and enter the month and year that the horn or system was installed. Check “No” if the crossing is not equipped with a wayside horn.

3.H. Highway Traffic Signals Controlling Crossing

Figure 2-70: U.S. DOT-FRA Crossing Inventory Form Part III, Item 3.H.

Enter a check in the “Yes” box to indicate that there are highway traffic signals that control highway traffic over the crossing, exclusive of other types of warning devices. For purposes of Item 3.H., “highway traffic signals” refers only to train-activated redamber-green signals that control street traffic over the crossing. Do not count highway signals controlling a nearby intersection even if they are interconnected with the crossing warning devices.

Enter a check in the “No” box if there are none.

3.I. Bells

Figure 2-71: U.S. DOT-FRA Crossing Inventory Form Part III, Item 3.I.

Enter the count of bells (either mechanical or electrical) present at the crossing as part of the warning system. If there are none, enter “0.”

3.J. Non-Train Active Warning

Figure 2-72: U.S. DOT-FRA Crossing Inventory Form Part III, Items 3.J – 3.K

Check the appropriate box if there is “Flagging” or a “Flagman” (a member of the train crew or other person who actively controls the flow of vehicular traffic using handsignaling devices or an Automated Flagger Assistance Device); “Manually Operated Signals” (e.g., dual toned multi-frequency (DTMF)-controlled, push-button activated); “Watchman” (a person assigned to provide warning that is not a member of the train crew); or “Floodlighting” at the crossing. Only floodlighting—which is distinctive from ordinary street lighting in intensity, light distribution, focus, or color—is to be reported. Check “None” if applicable.

3.K. Other Flashing Lights or Warning Devices

Enter the count and type of any other special warning devices at the crossing. For example, this would include wigwags if present. If none are present, enter a count of “0”.

Figure 2-73: U.S. DOT-FRA Crossing Inventory Form Part III, Items 4.A. – 4.C.

4.A. Does nearby Hwy Intersection have Traffic Signals?

Check either the “Yes” or “No” box to indicate whether or not a highway-highway intersection within 500 feet has highway traffic signals.

Note: The distance (500 feet or less) is measured from the nearest rail, not from the centerline of track.

4.B. Hwy Traffic Signal Interconnection

Check all that apply. If “Not Interconnected” is checked, do not check the other two choices.

• “Not Interconnected” – crossings equipped with active warning systems that do not have an electrical connection between the railroad active warning system and the traffic signal controller assembly for the purpose of preemption.

• “For Traffic Signals” – crossings having an electrical connection between the railroad active warning system and the traffic signal controller assembly for the purpose of preemption.

• “For Warning Signs” – signs that are electrically connected to a railroad crossing control circuit that is designed to illuminate the signs upon the approach or presence of a train.

Figure 2-74: Examples of “For Warning Signs”

4.C. Hwy Traffic Signal Preemption

Check the appropriate box for the type of preemption. This field is not applicable if “Not Interconnected” is chosen in field 4.B. and should be left blank.

Preemption is defined in the MUTCD as the transfer of the normal operation of highway traffic signals to a special control mode.

In this instance preemption occurs as a result of a signal received from the railroad active warning device system

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