[Code of Federal Regulations]

[Title 49, Volume 4]

[Revised as of October 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR222.9]



[Page 266-270]

 

                        TITLE 49--TRANSPORTATION

 

       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 

                             TRANSPORTATION

 

PART 222_USE OF LOCOMOTIVE HORNS AT PUBLIC HIGHWAY-RAIL GRADE 

 

                            Subpart A_General

 

Sec.  222.9  Definitions.



    As used in this part--

    Administrator means the Administrator of the Federal Railroad 

Administration or the Administrator's delegate.



[[Page 267]]



    Alternative safety measures (ASM) means a safety system or 

procedure, other than an SSM, established in accordance with this part 

which is provided by the appropriate traffic control authority or law 

enforcement authority and which, after individual review and analysis by 

the Associate Administrator, is determined to be an effective substitute 

for the locomotive horn in the prevention of highway-rail casualties at 

specific highway-rail grade crossings. Appendix B to this part lists 

such measures.

    Associate Administrator means the Associate Administrator for Safety 

of the Federal Railroad Administration or the Associate Administrator's 

delegate.

    Channelization device means a traffic separation system made up of a 

raised longitudinal channelizer, with vertical panels or tubular 

delineators, that is placed between opposing highway lanes designed to 

alert or guide traffic around an obstacle or to direct traffic in a 

particular direction. ``Tubular markers'' and ``vertical panels'', as 

described in the MUTCD, are acceptable channelization devices for 

purposes of this part. Additional design specifications are determined 

by the standard traffic design specifications used by the governmental 

entity constructing the channelization device.

    Chicago Region means the following six counties in the State of 

Illinois: Cook, DuPage, Lake, Kane, McHenry and Will.

    Crossing Corridor Risk Index means a number reflecting a measure of 

risk to the motoring public at public grade crossings along a rail 

corridor, calculated in accordance with the procedures in appendix D of 

this part, representing the average risk at each public crossing within 

the corridor. This risk level is determined by averaging among all 

public crossings within the corridor, the product of the number of 

predicted collisions per year and the predicted likelihood and severity 

of casualties resulting from those collisions at each public crossing 

within the corridor.

    Diagnostic team as used in this part, means a group of knowledgeable 

representatives of parties of interest in a highway-rail grade crossing, 

organized by the public authority responsible for that crossing, who, 

using crossing safety management principles, evaluate conditions at a 

grade crossing to make determinations or recommendations for the public 

authority concerning safety needs at that crossing.

    Effectiveness rate means a number between zero and one which 

represents the reduction of the likelihood of a collision at a public 

highway-rail grade crossing as a result of the installation of an SSM or 

ASM when compared to the same crossing equipped with conventional active 

warning systems of flashing lights and gates. Zero effectiveness means 

that the SSM or ASM provides no reduction in the probability of a 

collision, while an effectiveness rating of one means that the SSM or 

ASM is totally effective in eliminating collision risk. Measurements 

between zero and one reflect the percentage by which the SSM or ASM 

reduces the probability of a collision.

    FRA means the Federal Railroad Administration.

    Grade Crossing Inventory Form means the U.S. DOT National Highway-

Rail Grade Crossing Inventory Form, FRA Form F6180.71. This form is 

available through the FRA's Office of Safety, or on FRA's Web site at 

http://www.fra.dot.gov.

    Intermediate Partial Quiet Zone means a segment of a rail line 

within which is situated one or a number of consecutive public highway-

rail grade crossings at which State statutes or local ordinances 

restricted the routine sounding of locomotive horns for a specified 

period of time during the evening or nighttime hours, or at which 

locomotive horns did not sound due to formal or informal agreements 

between the community and the railroad or railroads for a specified 

period of time during the evening and/or nighttime hours, and at which 

such statutes, ordinances or agreements were in place and enforced or 

observed as of December 18, 2003, but not as of October 9, 1996.

    Intermediate Quiet Zone means a segment of a rail line within which 

is situated one or a number of consecutive public highway-rail grade 

crossings at which State statutes or local ordinances restricted the 

routine sounding



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of locomotive horns, or at which locomotive horns did not sound due to 

formal or informal agreements between the community and the railroad or 

railroads, and at which such statutes, ordinances or agreements were in 

place and enforced or observed as of December 18, 2003, but not as of 

October 9, 1996.

    Locomotive means a piece of on-track equipment other than hi-rail, 

specialized maintenance, or other similar equipment--

    (1) With one or more propelling motors designed for moving other 

equipment;

    (2) With one or more propelling motors designed to carry freight or 

passenger traffic or both; or

    (3) Without propelling motors but with one or more control stands.

    Locomotive audible warning device means a horn, whistle, siren, or 

bell affixed to a locomotive that is capable of producing an audible 

signal.

    Locomotive horn means a locomotive air horn, steam whistle, or 

similar audible warning device (see 49 CFR 229.129) mounted on a 

locomotive or control cab car. The terms ``locomotive horn'', ``train 

whistle'', ``locomotive whistle'', and ``train horn'' are used 

interchangeably in the railroad industry. For purposes of this part, 

locomotive horns used in rapid transit operations must be suitable for 

street usage and/or designed in accordance with State law requirements.

    Median means the portion of a divided highway separating the travel 

ways for traffic in opposite directions.

    MUTCD means the Manual on Uniform Traffic Control Devices published 

by the Federal Highway Administration.

    Nationwide Significant Risk Threshold means a number reflecting a 

measure of risk, calculated on a nationwide basis, which reflects the 

average level of risk to the motoring public at public highway-rail 

grade crossings equipped with flashing lights and gates and at which 

locomotive horns are sounded. For purposes of this rule, a risk level 

above the Nationwide Significant Risk Threshold represents a significant 

risk with respect to loss of life or serious personal injury. The 

Nationwide Significant Risk Threshold is calculated in accordance with 

the procedures in appendix D of this part. Unless otherwise indicated, 

references in this part to the Nationwide Significant Risk Threshold 

reflect its level as last published by FRA in the Federal Register.

    New Partial Quiet Zone means a segment of a rail line within which 

is situated one or a number of consecutive public highway-rail crossings 

at which locomotive horns are not routinely sounded between the hours of 

10 p.m. and 7 a.m., but are routinely sounded during the remaining 

portion of the day, and which does not qualify as a Pre-Rule Partial 

Quiet Zone or an Intermediate Partial Quiet Zone.

    New Quiet Zone means a segment of a rail line within which is 

situated one or a number of consecutive public highway-rail grade 

crossings at which routine sounding of locomotive horns is restricted 

pursuant to this part and which does not qualify as either a Pre-Rule 

Quiet Zone or Intermediate Quiet Zone.

    Non-traversable curb means a highway curb designed to discourage a 

motor vehicle from leaving the roadway. Non-traversable curbs are used 

at locations where highway speeds do not exceed 40 miles per hour and 

are at least six inches high. Additional design specifications are 

determined by the standard traffic design specifications used by the 

governmental entity constructing the curb.

    Partial Quiet Zone means a segment of a rail line within which is 

situated one or a number of consecutive public highway-rail grade 

crossings at which locomotive horns are not routinely sounded for a 

specified period of time during the evening and/or nighttime hours.

    Pedestrian grade crossing means, for purposes of this part, a 

separate designed sidewalk or pathway where pedestrians, but not 

vehicles, cross railroad tracks. Sidewalk crossings contiguous with, or 

separate but adjacent to, public highway-rail grade crossings are 

presumed to be part of the public highway-rail grade crossing and are 

not considered pedestrian grade crossings.

    Power-out indicator means a device which is capable of indicating to 

trains approaching a grade crossing equipped



[[Page 269]]



with an active warning system whether commercial electric power is 

activating the warning system at that crossing. This term includes 

remote health monitoring of grade crossing warning systems if such 

monitoring system is equipped to indicate power status.

    Pre-existing Modified Supplementary Safety Measure (Pre-existing 

Modified SSM) means a safety system or procedure that is listed in 

appendix A to this Part, but is not fully compliant with the standards 

set forth therein, which was installed before December 18, 2003 by the 

appropriate traffic control or law enforcement authority responsible for 

safety at the highway-rail grade crossing. The calculation of risk 

reduction credit for pre-existing modified SSMs is addressed in appendix 

B of this part.

    Pre-existing Supplementary Safety Measure (Pre-existing SSM) means a 

safety system or procedure established in accordance with this part 

before December 18, 2003 which was provided by the appropriate traffic 

control or law enforcement authority responsible for safety at the 

highway-rail grade crossing. These safety measures must fully comply 

with the SSM requirements set forth in appendix A of this part. The 

calculation of risk reduction credit for qualifying pre-existing SSMs is 

addressed in appendix A.

    Pre-Rule Partial Quiet Zone means a segment of a rail line within 

which is situated one or a number of consecutive public highway-rail 

crossings at which State statutes or local ordinances restricted the 

routine sounding of locomotive horns for a specified period of time 

during the evening and/or nighttime hours, or at which locomotive horns 

did not sound due to formal or informal agreements between the community 

and the railroad or railroads for a specified period of time during the 

evening and/or nighttime hours, and at which such statutes, ordinances 

or agreements were in place and enforced or observed as of October 9, 

1996 and on December 18, 2003.

    Pre-Rule Quiet Zone means a segment of a rail line within which is 

situated one or a number of consecutive public highway-rail crossings at 

which State statutes or local ordinances restricted the routine sounding 

of locomotive horns, or at which locomotive horns did not sound due to 

formal or informal agreements between the community and the railroad or 

railroads, and at which such statutes, ordinances or agreements were in 

place and enforced or observed as of October 9, 1996 and on December 18, 

2003.

    Private highway-rail grade crossing means, for purposes of this 

part, a highway-rail grade crossing which is not a public highway-rail 

grade crossing.

    Public authority means the public entity responsible for traffic 

control or law enforcement at the public highway-rail grade or 

pedestrian crossing.

    Public highway-rail grade crossing means, for purposes of this part, 

a location where a public highway, road, or street, including associated 

sidewalks or pathways, crosses one or more railroad tracks at grade. If 

a public authority maintains the roadway on both sides of the crossing, 

the crossing is considered a public crossing for purposes of this part.

    Quiet zone means a segment of a rail line, within which is situated 

one or a number of consecutive public highway-rail crossings at which 

locomotive horns are not routinely sounded.

    Quiet Zone Risk Index means a measure of risk to the motoring public 

which reflects the Crossing Corridor Risk Index for a quiet zone, after 

adjustment to account for increased risk due to lack of locomotive horn 

use at the crossings within the quiet zone (if horns are presently 

sounded at the crossings) and reduced risk due to implementation, if 

any, of SSMs and ASMs with the quiet zone. The calculation of the Quiet 

Zone Risk Index, which is explained in appendix D of this part, does not 

differ for partial quiet zones.

    Railroad means any form of non-highway ground transportation that 

runs on rails or electromagnetic guideways and any entity providing such 

transportation, including:

    (1) Commuter or other short-haul railroad passenger service in a 

metropolitan or suburban area and commuter railroad service that was 

operated by the Consolidated Rail Corporation on January 1, 1979; and



[[Page 270]]



    (2) High speed ground transportation systems that connect 

metropolitan areas, without regard to whether those systems use new 

technologies not associated with traditional railroads; but does not 

include rapid transit operations in an urban area that are not connected 

to the general railroad system of transportation.

    Recognized State agency means, for purposes of this part, a State 

agency, responsible for highway-rail grade crossing safety or highway 

and road safety, that has applied for and been approved by FRA as a 

participant in the quiet zone development process.

    Relevant collision means a collision at a highway-rail grade 

crossing between a train and a motor vehicle, excluding the following: a 

collision resulting from an activation failure of an active grade 

crossing warning system; a collision in which there is no driver in the 

motor vehicle; or a collision in which the highway vehicle struck the 

side of the train beyond the fourth locomotive unit or rail car. With 

respect to Pre-Rule Partial Quiet Zones, a relevant collision shall not 

include collisions that occur during the time period within which the 

locomotive horn is routinely sounded.

    Risk Index With Horns means a measure of risk to the motoring public 

when locomotive horns are routinely sounded at every public highway-rail 

grade crossing within a quiet zone. In Pre-Rule Quiet Zones and Pre-Rule 

Partial Quiet Zones, the Risk Index With Horns is determined by 

adjusting the Crossing Corridor Risk Index to account for the decreased 

risk that would result if locomotive horns were routinely sounded at 

each public highway-rail grade crossing.

    Supplementary safety measure (SSM) means a safety system or 

procedure established in accordance with this part which is provided by 

the appropriate traffic control authority or law enforcement authority 

responsible for safety at the highway-rail grade crossing, that is 

determined by the Associate Administrator to be an effective substitute 

for the locomotive horn in the prevention of highway-rail casualties. 

Appendix A of this part lists such SSMs.

    Waiver means a temporary or permanent modification of some or all of 

the requirements of this part as they apply to a specific party under a 

specific set of facts. Waiver does not refer to the process of 

establishing quiet zones or approval of quiet zones in accordance with 

the provisions of this part.

    Wayside horn means a stationary horn located at a highway rail grade 

crossing, designed to provide, upon the approach of a locomotive or 

train, audible warning to oncoming motorists of the approach of a train.