GB 14886-2016Specifications for road traffic signal setting and installation (English PDF)

3.1 Terms and Definitions

GB/T 31418 and defined by the following terms and definitions apply to this document.

3.1.1 Flashing warning lights flashsignal It consists of a round yellow unpatterned units of road traffic lights. Job status flashes, indicating that the vehicle, pedestrians should pay attention to traffic Outlook, to ensure safety after the adoption.

3.1.2 Safe stopping sight distance triangle sighttriangle Crossroads Department to either import the outermost lane road centerline and the right side of the road intersects the innermost lane road import midline Vertex intersection, two lanes along the midline with their speed limits required for the safe stopping sight length on both sides of the triangle formed area.

3.1.3 Reference axis referenceaxis Perpendicular to the surface of the horizontal plane of projection surface and a straight line through the geometric center. [

GB 14887-2011, the definition 3.2]

3.1.4 Lights installation height instalationheightofsignal Lights from the lowest point of the vertical distance to the road surface.

3.1.5 Lights boom length cantileverlengthofsignal By the lights from the poles to the pole lights farthest point.

3.1.6 Variable guide lane reversiblelane At intersections, traffic flow requirements may vary according to the vehicle forward direction guide lanes.

3.1.7 Tide lane tidalflowlane In the section of road, depending on traffic flow requirements can change the direction of vehicle travel lane.

3.1.8 Pedestrian refuges pedestrianrefugeisland To provide pedestrian crossing stop the space provided on the road surface in a variety of island facilities.

3.1.9 Pedestrian twice crossing two-stagecrossing Pedestrians crossing the street to wait once or more than once in the case of pedestrian refuges.

3.2 Acronyms The following abbreviations apply to this document. BRTbusrapidtransit BRT LEDlightemittingdiode light-emitting diodes PCUpassengercarunit equivalent car

4.1 Basic requirements

4.1.1 road traffic lights (hereinafter referred to as signal) setup and installation, you should be sure that lights motor vehicle drivers, non-motorized Drivers and pedestrians clearly observed.

4.1.2 set the lights, it should set the appropriate supporting road traffic signs, markings and traffic monitoring equipment.

4.1.3 or life beyond the lights appear insufficient brightness, color distortion and lack of LED dot matrix and other phenomena affect the use, should be promptly replace.

4.2 Signal selection requirements

4.2.1 selected lights should be consistent with the provisions of GB 14887 of.

4.2.2 The combination lights should be based on command objects, control objectives and control conditions determined comprehensively.

4.2.3 Stop lights line a distance greater than 70m or road speed limit greater than or equal 60km/h, should use light-emitting unit size translucent surface As Phi400mm semaphore.

4.3 Lights display requirements

4.3.1 provided with directional lights crossing, easement directional traffic lights and other traffic streams are directed not conflict.

4.3.2 Signal light emitting unit has lights flicker on and off the three states.

4.3.3 Signal light color conversion shall meet the following requirements.

a) Traffic Signal. red -> green -> yellow -> red, see Appendix A in Figure A.1;

b) directional lights. red -> green -> yellow -> red, see Appendix A in Figure A.2, red or yellow -> -> -> off all lights red, see Appendix Appendix A Figure A.3;

c) turn signal lamp. red -> green -> yellow -> red, see Appendix A in Figure A.4;

d) non-motor vehicle lights. red -> green -> yellow -> red, see Appendix A in Figure A.5;

e) crosswalk lights. red -> green -> red -> green light flashes, see Appendix A in Fig. A.6;

f) lane lights. red forked green down arrow -> -> red fork, see Appendix A in Figure A.7;

g) crossing lights. two alternately flashing red lights went -> -> two alternately flashing red light, red light or red light is off -> -> red Bright, see Appendix A in Figure A.8. Length should be 3s ~ 5s

4.3.4 motor vehicle lights, directional lights yellow lights or vehicle settings.

4.3.5 flashing yellow warning lights flash frequency signal should meet the GA/T 743-2007 requirements in 5.7. Green pedestrian crossing signal flash Frequency signal is 1/s ~ 2 times/s, in which the signal light and dark time ratio of 1, the number of flashes and the duration is determined depending on the specific circumstances. Halogen Flash frequency of the signal light source is allowed to reduce, but not less than 30 beats/min, the signal light and dark is not more than 1.1.

4.3.6 In the more concentrated the blind pass road, crosswalk lights should be set audible alert device. Audible alert device shall comply with the following Claim.

a) electronic synthesizer sound signal should adopt a batch type of sound;

5.1 junctions

5.1.1 Type Conditions intersection City Crossing

5.1.1.1 comply with the following conditions should be set lights.

a) urban roads and trunk road trunk road level crossing post;

b) urban roads and secondary roads main road level crossing post;

c) in accordance with GB 50647-2011

3.2.3 planning, design level class A1, class A2 level crossing.

5.1.1.2 highway intersection meets the following conditions should be set lights.

a) a flat cross-road and highway junctions;

b) in accordance with

10.1.2 using JTGD20-2006 crossing signal Traffic management design. Obstructs the motor vehicle driver's line of sight obstructions within

5.1.1.3 Crossroads safe stopping sight distance triangle bounded, it is desirable to set the letter Lights.

5.1.2 Intersection traffic conditions

5.1.2.1 intersection when the vehicle peak hour traffic exceeds the values shown in Table 1, should be set up lights. Table 1 peak hour traffic intersection vehicle The main one-way roads Lanes/Article Secondary road way Lanes/Article The main road two-way peak hour traffic / (PCU/h) Larger secondary roads one-way traffic Peak hour traffic/(PCU/h) 1 >=2 >=2 1 >=2 >= 2

Note 1. The main road where two roads intersect in a larger flow path.

Note 2. The secondary road where two roads intersect in less traffic on the road.

Note 3. The number of lanes in the intersection of 50m above the canal section or sections of the counting.

Note 4. Imported without special non-motorized vehicles, and should the import of non-motorized traffic entering the intersection converted to equivalent car traffic and uniform consideration.

Note 5. Take a traffic statistics for each import period two-way road traffic statistics should be secondary in the larger value of the accumulated.

Note 6. PCU refers to the equivalent car. Conversion factors in Appendix B.

5.1.2.2 When crossing any continuous 8h average hourly motor vehicle traffic exceeds the values shown in Table 2, it should be set up lights. Table 2 hour crossing any 8h continuous vehicle traffic The main road one-way lanes / Secondary roads one-way lanes / Any continuous two-way main road 8h Average hourly flow rate/(PCU/h) Larger flow of secondary roads arbitrary continuous unidirectional 8h Average hourly flow rate/(PCU/h) 1 >=2 >=2 1 >=2 >=2

5.1.3 intersection traffic accident conditions According to traffic accident situation intersection achieve one of the following conditions should be set intersection lights.

a) 3 years, an average of more than five accidents per year, from the cause of the accident analysis by setting the lights to avoid accidents intersection;

b) 3 years average crossing more than one death traffic accidents every year.

5.1.4 intersection general terms

5.1.4.1 When Table 1, Table 2 and 5.1.3, there are two or more conditions to reach 80%, the crossing lights should be set. The semaphore is set to

5.1.4.2 after crossing deformity or road crossing point should be reasonable traffic channelization. 5.1.4.3