GB 5768.6-2017 PDF in English
GB 5768.6-2017 (GB5768.6-2017) PDF English
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Road traffic signs and markings -- Part 6: Highway-railway grade crossing
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Standards related to (historical): GB 5768.6-2017
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GB 5768.6-2017: PDF in English GB 5768.6-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S 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’s 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
...... Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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