[Code of Federal Regulations]

[Title 49, Volume 4]

[Revised as of October 1, 2005]

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

[CITE: 49CFR221.5]



[Page 257-258]

 

                        TITLE 49--TRANSPORTATION

 

       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 

                             TRANSPORTATION

 

PART 221_REAR END MARKING DEVICE_PASSENGER, COMMUTER AND FREIGHT TRAINS

--Table of Contents

 

                            Subpart A_General

 

Sec. 221.5  Definitions.



    As used in this part:

    (a) Train means a locomotive unit or locomotive units coupled, with 

or without cars, involved in a railroad operation conducted on a main 

track. It does not include yard movements.

    (b) Commuter train means a short haul passenger train operating on 

track which is part of the general railroad system of transportation, 

within an urban, suburban or metropolitan area. It includes a passenger 

train provided by an instrumentality of a State or political subdivision 

thereof.

    (c) Locomotive means a self-propelled unit of equipment designed for 

moving other equipment in revenue service and includes a self-propelled 

unit designed to carry freight or passenger traffic, or both.



[[Page 258]]



    (d) Main track means a track, other than an auxiliary track, 

extending through yards or between stations, upon which trains are 

operated by timetable or train order or both, or the use of which is 

governed by a signal system.

    (e) Train order means mandatory directives issued as authority for 

the conduct of a railroad operation outside of yard limits.

    (f) Red-orange-amber color range means those colors defined by 

chromaticity coordinates, as expressed in terms of the International 

Commission on Illumination's 1931 Colormetric System, which lie within 

the region bounded by the spectrum locus and lines defined by the 

following equations:



X+Y=.97 (white boundary)

Y=X--.12 (green boundary)



    (g) Administrator means the Federal Railroad Administrator, the 

Deputy Administrator, or any official of the Federal Railroad 

Administration to whom the Administrator has delegated his authority 

under this part.

    (h) Effective intensity means that intensity of a light in candela 

as defined by the Illuminating Engineering Society's Guide for 

Calculating the Effective Intensity of Flashing Signal Lights, November, 

1964.

    (i) Qualified person means any person who has the skill to perform 

the task and has received adequate instruction.



[42 FR 2321, Jan. 11, 1977; 42 FR 3843, Jan. 21, 1977, as amended at 51 

FR 25185, July 10, 1986]