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GB 5768.6-2017 English PDF (GB5768.6-2017)

GB 5768.6-2017 English PDF (GB5768.6-2017)

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GB 5768.6-2017: Road traffic signs and markings -- Part 6: Highway-railway grade crossing

This part of GB 5768 specifies the requirements for the setting of road traffic signs and markings for the road segments nearby the railway-highway grade crossings. This part applies to the setting of the road traffic signs and markings close to the railway-highway grade crossings for all kinds of roads including highway, urban roads, roads which is under the jurisdiction of the unit but allows social vehicles to pass. The setting of the road traffic signs and markings close to the railway-highway grade crossing where motor vehicles pass can make reference to this part.
GB 5768.6-2017
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 03.220.20
R 80
Partially replacing GB 5768-1999
Road traffic signs and markings -
Part 6. Highway-railway grade crossing
ISSUED ON. JULY 31, 2017
IMPLEMENTED ON. FEBRUARY 01, 2018
Issued by. General Administration of Quality Supervision, Inspection and Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 General provisions ... 5
4 Settings ... 8
Appendix A (Informative) Example of layout of traffic sign and marking for railway-highway grade crossing ... 11
Foreword
All technical contents of this part of GB 5768 are mandatory.
GB 5768 ?€?Road traffic signs and markings?€? is divided into eight parts.
- Part 1. General;
- Part 2. Road traffic signs;
- Part 3. Road traffic markings;
- Part 4. Work zone;
- Part 5. Speed limit;
- Part 6. Highway railway grade crossing;
- Part 7. Non-motorized vehicles and pedestrians;
- Part 8. School area.
This part is the part 6 of GB 5768.
This part was drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces the setting part of the traffic signs and markings of the railway-highway grade crossings of GB 5768-1999 ?€?Road traffic signs and markings?€?. As compared with the corresponding parts of GB 5768-1999, the main changes in this part are as follows.
- CHANGE the ?€?Marking for near railway grade crossing marking?€? into
?€?marking for railway-highway grade crossing?€?; ADD the dimension of the
?€?railway?€? marking and grade crossing when the lane width is less than or equal to 3 m (see clause 3.3);
- ADD the requirements for the setting of the markings for railway-highway grade crossings (see clauses 3 and 4);
- ADD the examples for the arrangement of the traffic signs and marking for railway-highway grade crossings (see Appendix A).
From the date of implementation of this part, the traffic signs and markings of newly-built or currently-implemented railway-highway grade crossings shall be implemented in accordance with the provisions of this part. The traffic signs and markings that have been set up according to the old standards shall be
gradually replaced during the period of use.
This part was proposed by the Ministry of Transport of the People's Republic of China, the Ministry of Public Security of the PEOPLE Republic of China. This part shall be under the jurisdiction of the National Traffic Engineering Facilities (Highway) Standardization Technical Committee (SAC/TC 223).
Drafting organization of this part. Highway Science Research Institute of the Ministry of Transport.
The main drafters of this part. Chen Yu, Tang Zhengzheng, He Yong, Gao
Hailong, Hou Dezao, Jiang Ming, Zhang Fan, Wang Dan, Guo Yan.
This standard replaces the standard previously issued as follows.
- GB 5768-1986, GB 5768-1999.
Road traffic signs and markings -
Part 6. Highway-railway grade crossing
1 Scope
This part of GB 5768 specifies the requirements for the setting of road traffic signs and markings for the road segments nearby the railway-highway grade crossings.
This part applies to the setting of the road traffic signs and markings close to the railway-highway grade crossings for all kinds of roads including highway, urban roads, roads which is under the jurisdiction of the unit but allows social vehicles to pass. The setting of the road traffic signs and markings close to the railway-highway grade crossing where motor vehicles pass can make reference to this part.
2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard.
GB 5768.2 Road traffic signs and markings - Part 2. Road traffic signs
GB 5768.3-2009 Road traffic signs and markings - Part 3. Road traffic
markings
3 General provisions
3.1 The color, shape, size and icon of the road traffic sign on the railway- highway grade crossing shall comply with the relevant provisions of GB 5768.2; the color, shape, size and icon of the road traffic marking on the railway-highway grade crossing shall comply with the relevant provisions of GB 5768.3.
3.2 If a multi-lane railway intersects the road, it shall set a fork symbol above the sign of the attended railway-highway grade crossing or the sign of the unattended railway-highway grade crossing.
3.3 The size of the marking of railway-highway grade crossing shall comply with the provisions of clause 6.4 of GB 5768.3-2009, as shown in Figure 1. When the lane width is less than or equal to 3 m, the dimensions of the ?€?railway?€? label and cross line can use the value in brackets in Figure 1.
Unit is centimeters
Figure 1 -- Marking of railway-highway grade crossing
3.4 When setting up the marking of railway-highway grade crossing for multi- lane roads, each lane of motor vehicle shall be provided with a set of markings of railway-highway grade crossing.
3.5 When there are two lanes near the railway-highway grade crossing, it shall provide the median line which prohibits crossing the lane of the opposite direction. When there are multi-lanes, it shall also set the median line which prohibits crossing the lanes of the same direction. Except for the intensive segments of the urban road intersections, calculated from the stop-line, the length of the median line which prohibits crossing the lane of opposite direction or the median line which prohibits crossing the lane of same direction is not less than 30 m. The example is as shown in Figure 2 and Figure 3.
Figure 2 -- Example of median line which prohibits crossing the lane of opposite direction
Lane?€?s centreline
Lane?€?s edge-line
Figure 3 -- Example of median line which prohibits crossing the lane of same direction
3.6 If it needs to set the cross hatch, it shall be set behind the stop line and cover the railway, as shown in Figure 4. The highway-railway grade crossing which has a small traffic volume and a small range may use the simplified cross hatch.
Figure 4 -- Example for setting cross hatch at railway-highway grade
crossing
4 Settings
4.1 Unattended railway-highway grade crossing
4.1.1 For unattended railway-highway grade crossings that are not signal- controlled and have no fencing bar, at the position where the driver of motor vehicle can view the motor vehicles at the lateral line-of-sight as defined in Table 1 at the point 50 m away from the crossing, it shall set the deceleration & give- way sign. Otherwise, it shall set the stop & give-way sign. The schematics of the lateral line-of-sight is as shown in Figure 5.
Table 1 -- Lateral line-of-sight of railway-highway grade crossing
Figure 5 -- Schematics of lateral line-of-sight of railway-highway grade crossing
4.1.2 When the road conditions permit, it shall set the marking of railway- highway grade crossing in front the railway-highway grade crossing.
4.1.3 It shall set the unattended railway-highway grade crossing sign. For the Speed limit of train / (km/h) Lateral line-of-sight / m
Note. When the speed limit of train exceeds 40 km/h, it shall determine the lateral line-of-sight through calculation. Lateral line-of-sight
Lateral line-of-sight
road segments which have a design speed of 60 km/h and above, the distance between the unattended railway-highway grade crossing sign and the parking line shall be selected according to the pre-position distance of the warning sign in GB 5768.2. For the road segments which have a design speed of 60 km/h below, the distance between the unattended railway-highway grade crossing sign and the parking line should be 30 m. For the railway-highway grade crossings at the intensive road segments at the urban road crossing, the unattended railway-highway grade crossing sign may be set at the crossing upstream of the railway-highway grade crossing, as shown in Appendix A. 4.1.4 It shall provide a speed limit sign about 30 m upstream of the railway- highway grade crossing, the speed limit value shall be 30 km/h; the speed limit shall be released beyond 5 m downstream. At the railway-highway grade
crossing of the intensive segment of the urban road crossing, the speed limit sign can be set at the crossing upstream of the railway-highway grade crossing. 4.1.5 When the railway-highway grade crossing marking is not set, it shall comply with the following provisions.
a) Set a stop line 5 m from the intersection of the crossing.
b) Set the slash symbol under the unattended railway-highway grade
crossing sign. Totally set three slash symbols. The first slash symbol, the second slash symbol, the third slash symbol shall be set at positions 50 m, 100 m, and 150 m from the railway-highway grade crossing,
respectively.
c) It may not set the slash symbol intensive segments at the urban road crossing, as shown in Appendix A.
4.2 Attended railway-highway grade crossing
4.2.1 For the attended railway-highway grade crossings which are hard to view by the driver, it should set the attended railway-highway grade crossing sign. For the road segments which have a design speed of 60 km/h and above, the distance between the attended railway-highway grade crossing sign and the stop line shall be selected according to the pre-position distance of the warning sign in GB 5768.2. For the road segments which have a design speed of 60 km/h below, the distance between the attended railway-highway grade crossing sign and the stop line should be 30 m. For the railway-highway grade crossings at the intensive road segments at the urban road crossing, the attended railway- highway grade crossing sign may be set at the crossing upstream of the railway- highway grade crossing, as shown in Appendix A.
4.2.2 When the road conditions permit, it should set the marking of railway- highway grade crossing in front of the railway-highway grade crossing.
4.2.3 The setting of the speed limit sign is the same as that specified in 4.1.4. 4.3 Where there are special road segments or structures such as curved
roads, downwards steep slope segments, overpass in the vicinity of
railway-highway grade crossings
4.3.1 Where there are special road segments or structures such as curved roads, downwards steep slope segments, overpass in the vicinity of the
upstream of railway-highway grade crossings, which affect the line-of-sight of the driver or distract the driver?€?s attention, it shall repeatedly set the railway- highway grade crossing sign in front of the special road segments or structures such as curved roads, downwards steep slope segments, overpass, meanwhile determine the distance from the supporting sign to the railway-highway grade crossing, as shown in Appendix A.
4.3.2 Where there are dangerous road segments such as curved roads,
downwards steep slope segments, grade crossing, or accident-prone road
segments in the vicinity of the downstream of railway-highway grade crossings, which may affect the ling-of-sight of the driver or distract the driver?€?s attention due to the presence of the railway-highway grade crossing, it shall, at the appropriate position in front of the railway-highway grade crossing, set the warning signs for the curved road, downwards steep slope segment, grade crossing, or otherwise the warning signs of the accident-prone road segments, as shown in Appendix A.
Appendix A
(Informative)
Example of layout of traffic sign and marking for railway-highway grade crossing
Example of layout of traffic sign and marking for railway-highway grade crossing are as shown in Figures A.1 ~ A.6.
a) Signal-controlled multi-lane railway-highway
grade crossing
b) Fence bar-controlled railway-highway grade
crossing
Figure A.1 -- Example of setting sign and marking for attended railway- highway grade crossing
Fence bar at
crossing
Signal lamp
Signal lamp
Fence bar at crossing
Fence bar
at crossing
Fence bar
at crossing
a) Double-lane unattended railway-highway
grade crossing
b) Single-lane unattended railway-highway
grade crossing
Figure A.2 -- Example of setting sign and marking for unattended
railway-highway grade crossing
Figure A.3 -- Example of setting railway-highway grade crossing sign for intensive road segments at urban road crossings
Signal lamp
Fence bar at
crossing
Fence bar at
crossing
Signal lamp
Figure A.4 -- Example of setting a slash symbol for an unattended
railway-highway grade crossings
Figure A.5 -- Example of no slash symbol at the urban unattended
railway-highway grade crossings
Figure A.6 -- Example of setting the sign and marking for the railway-
highway grade crossing at the curved road segments

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