17. Warning Systems and Traffic Signals Installed at a Grade Crossing in Lieu of a Warning System - Inspection and Testing

17.1  Inspection and testing of warning systems must be done in accordance with article 3.3.1 and 3.1.15 of AREMA Communications and Signals Manual (cited in Part A).

17.2  Inspection and testing of traffic signals installed at a grade crossing in lieu of a warning system must be done in accordance with the road authority's procedures.

Table 17-1 – Interpretation of Frequencies of Inspections and Tests for Warning Systems and Traffic Signals installed at a grade crossing in lieu of a warning system

Interpretation of Frequencies of Maintenance, Inspections and Tests for Warning Systems. In Table 17-1 the designated frequency, is defined, by the maximum interval between the days of maintenance, inspection or test.
Column 1
Designated Frequency
Column 2
Definition
Column 3
Maximum interval between
each inspection or test
Weekly

Once every week  

(Sunday to Saturday)

10 clear days
Monthly Once every calendar month 40 clear days
Quarterly

Once every 3 months

(January to March, April to June, July to September, and October to December)

100 clear days
Twice annually

Once every 6 months

(January to June and July to December)

200 clear days
Annually Once every calendar year 13 months
Every 2 years Once every 2 calendar years 26 months
Every 4 years Once every 4 calendar years 52 months
Every 10 years Once every 10 calendar years 130 months

Table 17-2 – Required Frequencies of Inspections and Tests for Warning Systems and Traffic Signals installed at a grade crossing in lieu of a warning system

Required Frequencies of Inspections and Tests for Warning systems. Table 17-2 outlines the required frequency of inspections and tests for various components of warning systems, limited use warning systems and limited use warning systems with walk light.
Column 1
ITEM

Column 2
Elements: Inspection and Testing requirements

Column 3
Frequency for Warning Systems Systems and Traffic Signals installed at a grade crossing in lieu of a warning system
Column 4
Frequency for Limited Use Warning Systems
Column 5
Frequency for Limited Use Warning Systems with Walk Ligh
1 Warning Systems: for operation of lights, bell, gates, and power off light. Weekly or no more than 7 days before the operation of railway equipment N/A N/A
2 Light units: for misalignment, physical damage and conspicuity. Monthly Quarterly Quarterly
3 Standby power: for operating bank voltage Monthly Quarterly Quarterly
4 Light units, and gates: for damage, cleanliness, and visibility Monthly Quarterly N/A
5 Bell: for operation Monthly N/A N/A
6 Gate arm: for operation Monthly N/A N/A
7 Surge protection: for condition Monthly Quarterly Quarterly
8 Circuits: for grounds Monthly Quarterly Quarterly
9 Battery: for isolation faults Monthly Quarterly Quarterly
10 Batteries: for voltage, current, electrolyte level, and plate deterioration where plates are visible Monthly Quarterly Quarterly
11 Interconnection components: for energization of circuits as intended. Monthly N/A N/A
12 Switch circuit controller: for adjustment Quarterly Quarterly Quarterly
13 Batteries: for degree of exhaustion, voltage and current Quarterly Quarterly Quarterly
14 Fouling circuits: for continuity Quarterly Quarterly Quarterly
15 Direct Current relays: visual check of condition Twice Annually Twice Annually Twice Annually
16 Bond wires, track connections, insulated joints, and other insulated track appliances: visual check of condition Twice Annually Twice Annually Twice Annually
17 Cut-out circuits (any circuit that overrides the operation of a warning system): for operation Twice Annually Twice Annually Twice Annually
18 Gate mechanism and circuit controller: visual inspection of condition Twice Annually N/A N/A
19 Control circuits operation of traffic signals installed at a grade crossing in lieu of a warning system Twice Annually N/A N/A
20 Light units: for proper alignment, focus, and visibility. Annually Annually Annually
21 Light Unit: for voltage Annually Annually Annually
22 Track circuits: for proper functioning Annually Annually Annually
23 Flash controller: for flash rate Annually Annually Annually
24 Battery: load test Annually Annually Annually
25 Warning time: for required time Annually Annually Annually
26 Electronic railway equipment detection devices, including processor-based systems: for programming and function ability. Annually Annually Annually
27 Timing relays and timing devices: for required time Annually Annually Annually
28 Cable and wire entrances: for condition Annually Annually Annually
29 Switch circuit controller centering device: for condition Annually Annually Annually
30 Interconnection operation between of warning systems and traffic control devices Annually N/A N/A
31 Pole line and attachments: for condition Every Two Years Every Two Years Every Two Years
32 Gate mechanism: for electrical values, mechanical clearances and torque Every Four Years Every Four Years Every Four Years
33 DC Polar, AC Vane, and Mechanical Timer relays: for electrical values and operating characteristics Every Two Years Every Two Years Every Two Years
34 Relays that affect proper functioning of a warning system (except for DC polar, AC Vane and Mechanical Timer): for electrical values and operation Every Four Years Every Four Years Every Four Years
35 Ground: for resistance value Every Ten Years Every Ten Years Every Ten Years
36 Wire and cable insulation: for resistance Every Ten Years N/A N/A
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