Draft Canadian Railway-Roadway Grade Crossings Standards ...

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Luminous Intensity (I v ) (of a source in a given direction) – the luminous flux dΦ v leaving the source and propagating in the element of solid angle dΩ containing the given direction, divided by the element of solid angle (I v = dΦ v / dΩ candela) (Intensité lumineuse (I v )) Luminous Flux (Φ v ) – quantity derived from radiant flux Φ e by evaluating the radiation according to its action upon the CIE standard photometric observer (lumen) (Flux lumineux (Φ v )) Lux (lx) (SI unit of Illuminance) – illuminance produced on a surface of area 1 square metre by a luminous flux of 1 lumen uniformly distributed over that surface (1 lx = 1 lm/m 2 ) (Lux (lx)) Power Consumption – the electrical power in watts consumed by an LED signal module when operated at nominal operating voltage and ambient operating temperature range (Puissance consommée) Radiant Flux (Φ e ) – the total power emitted, received, or passing in the form of electromagnetic radiation. It is measured in watts (Flux radiant (Φ e )) Rated Life – the arithmetic average of burning hours for a sample number of signal modules operated at rated voltage and under defined operating conditions (Durée (de vie) nominale) Rated Voltage – the nominal or design operating voltage of the LED signal module; the voltage at which rated watts, candelas, and life are determined (Tension nominale) Rated Watts – the average initial power (watts) consumed when the lamp is operated at rated voltage (Puissance nominale) Road/Railway Grade Crossing Signal – that part of a Road/Railway Grade Crossing Warning System used at the crossing to provide visual warning to road traffic (Signal de passage à niveau rail-route) Spectral Luminous Efficiency – ratio of the radiant flux at wavelength λ m to that at wavelength λ such that both radiations produce equally intense luminous sensations under specified photometric conditions and λ m is chosen so that the maximum value of this ratio is equal to 1 (Efficacité lumineuse spectrale) 3.0 PHOTOMETRIC REQUIREMENTS 3.1 Luminous Intensity When LED signal modules are in use at a road/railway grade crossing, they shall at all times and under all normal operational conditions meet the minimum luminous intensity values shown in Table A-1. Table A-1 – Minimum Luminous Intensity (Candela) over Temperature and Lifetime 0˚ 5˚G/D 10˚G/D 15˚G/D 20˚G/D 25˚G/D 30˚G/D 0˚ 400 375 250 150 75 40 15 5˚B 350 325 250 150 75 40 15 10˚B 130 125 110 85 60 35 15 15˚B 45 40 35 30 25 20 15 20˚B 15 15 15 15 15 15 10 3.2 Chromaticity A signal module shall produce a uniform red light output that conforms to the Equipment and Material Standards of the Institute of Transportation Engineers, Chapter 2, section 8.04, 1998. 3.3 Uniformity Page | 70
The ratio of the greatest and least luminance on the signal module shall not exceed 5:1, when measured over average areas of 500 mm 2 . 3.4 Rise/Fall Time The maximum rise time from zero intensity to full intensity, and the maximum fall time from full intensity to zero intensity, shall be 75 ms. 4.0 PHYSICAL AND MECHANICAL REQUIREMENTS 4.1 LED Signal Module Design 4.1.1 The LED signal module shall be designed to fit the road/railway grade crossing light unit housings, which are described in AREMA Communications and Signals Manual Part 3.2.35 (Recommended Design Criteria for Electric Light Unit for Highway-Rail Grade Crossing Signals Including Light Emitting Arrays and Incandescent Lamps), without requiring modification of the mechanical, structural, or electrical components. 4.1.2 The LED signal module shall be either 200 mm or 300 mm in size. 4.1.3 The LED signal module shall have either a clear or a red lens. 4.1.4 Any gasket or similar sealing provisions shall be made of a material in accordance with AREMA Communications and Signals Manual Part 15.2.10 (Recommended Functional Guidelines for Gasket Material Suitable for Circuit Controllers, Signal Cases and Other Signal Apparatus Housings). 4.2 Environmental Requirements 4.2.1 The LED signal module shall operate over an ambient temperature range of -40°C (-40°F) to 70°C (158°F) per MIL-STD-883, Test Method 1010. 4.2.2 The LED signal module shall be protected against dust and moisture intrusion as per the requirements of NEMA Standard 250-1991, sections 4.7.2.1 and 4.7.3.2, for Type 4 enclosures. 4.2.3 The LED signal module shall be meet mechanical vibration and shock requirements as per AREMA Communications and Signals Manual Part 11.5.1 (Recommended Environmental Requirements for Electrical and Electronic Railroad Signal System Equipment). 4.2.4 The LED signal module lens shall be UV stabilized. 4.3 Identification 4.3.1 The LED signal module shall be clearly identified with the following information: Road/Railway Grade Crossing: LED, Red Beam Deflection Classification: Universal Operating Voltage: ________________ Current Consumption at Operating Voltage: ________________ Meets Transport Canada Specifications: 2008 Serial Number: ________________ Date of Manufacture: ________________ 4.3.2 If the module or its components require orientation, they shall be prominently and permanently marked with an indexing arrow. 5.0 ELECTRICAL REQUIREMENTS 5.1 Transient Voltage Protection Page | 71
Page 1:
DRAFT CANADIAN RAILWAY-ROADWAY GRAD
Page 4 and 5:
FOREWORD The requirements of this d
Page 6 and 7:
“Geometric Design Guide” is the
Page 8 and 9:
PART B - DESIGN STANDARDS SECTION 4
Page 10 and 11:
Table 4-3 Grade Crossing Design Veh
Page 12 and 13:
Variation for Trucks The driver of
Page 14 and 15:
Figure 4-1 Clearance Distance for G
Page 16 and 17:
Road Gradient Effect The effects of
Page 18 and 19:
Departure Time - Pedestrians, Cycli
Page 20 and 21:
Table 4-8 Gate Delay Times on Level
Page 22 and 23:
SECTION 6 - GRADE CROSSING SURFACE
Page 24 and 25: Figure 6-2 Grade Crossing Surface -
Page 26 and 27: Figure 7-1 Maximum Crossing Angle:
Page 28 and 29: L = length of the grade crossing de
Page 30 and 31: 8.6 (a) Sightlines along the railwa
Page 32 and 33: Figure 8-2 Minimum Sightlines - Gra
Page 34 and 35: 9.7 Lines shall be applied within 8
Page 36 and 37: Figure 9-3 Location of Railway Cros
Page 38 and 39: 3. The supplementary tab sign indic
Page 40 and 41: GRADE CROSSING WARNING SYSTEMS SECT
Page 42 and 43: Grade Crossing Warning Systems Used
Page 44 and 45: SECTION 13 - NUMBER AND LOCATION OF
Page 46 and 47: Figure 13-1 Horizontal Cone of Visi
Page 48 and 49: Figure 13-3 Typical Light Unit Arra
Page 50 and 51: Figure 13-5 Sidewalks, Paths and Tr
Page 52 and 53: SECTION 15 - PREEMPTION OF TRAFFIC
Page 54 and 55: Table 16-1 Whistling Requirements f
Page 56 and 57: SECTION 18 - GRADE CROSSING WARNING
Page 58 and 59: Figure 18-2 Gates Gate arm at rest
Page 60 and 61: Figure 18-3 Cantilevers Drawing not
Page 62 and 63: Alignment Distance - Primary Front
Page 64 and 65: Cut-Outs 19.13 Where trains routine
Page 66 and 67: 21.5 Plans and Forms a) Plans and f
Page 68 and 69: for physical damage; check cleanlin
Page 70 and 71: 22.3 The required frequencies of in
Page 72 and 73: APPENDIX A Standards for LED Signal
Page 76 and 77: LED signal module circuitry shall i
Page 78 and 79: 1.0 WARNING SYSTEM DESIGN General 1
Page 80 and 81: Figure B-2: Grade Crossing Warning
Page 82 and 83: 1.0 WALK LIGHT DESIGN General 1.1 W
Page 84 and 85: Figure C-2 - Walk Light Grade Cross
Page 86 and 87: APPENDIX D Sharing Requirements Pag
Page 88 and 89: Table D-2: Technical Data Parameter
Page 90 and 91: APPENDIX E GRADE CROSSING STANDARDS
Page 92 and 93: Figure E-1 - Crossing Surface Page
Page 94 and 95: protected track on which trains ope
Page 96 and 97: Figure E-3 - Grade Crossing Signal
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