Minnesota Administrative Rules
Agency 175 - Transportation Department
Chapter 8830 - RAILROADS
SIGNS, SIGNALS, OTHER SAFETY MEASURES
Part 8830.2125 - PLAN APPROVAL FOR ACTIVE WARNING DEVICE
Universal Citation: MN Rules 8830.2125
Current through Register Vol. 48, No. 39, March 25, 2024
Subpart 1. Information required.
Modifications, replacements, and installations of active warning devices at grade crossings must be made in accordance with plans approved by the commissioner.
The following information must be provided by the rail carrier to the commissioner:
A. the
grade-crossing inventory number as provided for in part
8830.0300 and the exact location
of the grade crossing in terms of rail carrier stationing or distance from the
nearest milepost;
B. proper name of
the roadway crossing the railroad track, including county, state, or federal
highway designations;
C. city where
the grade crossing is located or city nearest to the grade crossing;
D. listing of plans, special instructions,
data forms, informational reports, and documents sent with the
application;
E. reasons for making
changes in existing control systems for warning devices;
F. two complete sets of plans;
G. wiring diagram of active warning devices,
or if on file, may be referred to;
H. changes of existing active warning device
facilities and controls, clearly identified on plans by color code or other
suitable means, except that if plans reflect only new work, they need not be
colored or otherwise coded;
I. upon
request, information necessary to completely analyze the active warning device
control system;
J. complete plans
with respect to the active warning device control system for the grade crossing
involved. When block-signal systems are involved, the block-signal controls
incorporated in the active warning device control system must be shown to the
extent applicable;
K. electronic
equipment adequately defined by numerical or other designation supplied by the
manufacturer and the name of the manufacturer, so that complete functional and
performance characteristics of the active warning device control system can be
accurately determined and evaluated;
L. frequency of audio frequency track
circuits and other audio equipment shown on the plans;
M. when electronic control equipment
consisting of a self-contained unit arranged for incorporation within the
active warning device control system is employed and identified only by a box
symbol with identifiable terminals within the control circuit diagram, the name
of the manufacturer and adequate information to enable accurate determination
of the circuits within the self-contained unit, including:
(1) if the circuits are published by the
manufacturer of the equipment as a coherent control system, reference to type,
model, or other identifying means; or
(2) if the circuits are not published by the
manufacturer as a complete and coherent system, copies of the circuits to be
employed and a block diagram or other means of determining how they will be
related;
N. definitions
of special symbols or nomenclature used only by the rail carrier and not found
in the AREMA signal manual, publications of manufacturers of active warning
device equipment, or other generally recognized sources of information in the
rail industry;
O. the length of
approach track sections, shown on the plans;
P. the length of island track circuits shown
on the plans;
Q. the method of
calculation employed by the rail carrier in determining the anticipated warning
time for a train approaching the grade crossing at average maximum authorized
speed, the active warning device system reaction time, the over-speed
tolerance, if any, and any other factors considered;
R. ampere hour capacity of battery stated on
the plans;
S. supplementary
supporting information when necessary to clarify and support special design
features of the active warning device controls or active warning devices, which
may consist of, but is not limited to:
(1)
daily traffic volume and peak traffic density of motor vehicles over the grade
crossing, if this information is available from the road authority;
(2) daily traffic volume and peak traffic
density of train movements over the grade crossing;
(3) special operating instructions that apply
to the warning devices at the grade crossing or indirectly affect them;
and
(4) general operating rules
effective in the design of the control system for the active warning devices;
and
T. when the control
system for roadway intersection traffic signals is to be interconnected with
the control system for active warning devices at a grade crossing:
(1) a plan showing how the electrical
interconnection will be made;
(2) a
sequence chart approved by the state and local authorities concerned, showing
the operating sequences possible for the traffic signals; and
(3) a dimensioned or scale plan drawing
showing the location of the traffic signals at the roadway intersection and the
active warning devices at the grade crossing.
The road authority shall provide the traffic signal plans and the rail carrier shall provide the active warning device plans. Plan submittals will be coordinated by the commissioner.
Subp. 2. Standards of review.
The commissioner will review the plans for proper location of active warning devices in accordance with the MMUTCD, provisions to provide the required warning to motorists, and provisions to prevent unnecessary operation or excessive operation of the active warning devices. When approved, the commissioner will return one complete set of plans to the rail carrier.
Statutory Authority: MS s 218.071; 219.073; 219.165; 219.17; 219.384; 222.50; 222.58; 222.63
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