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
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 and give-
way sign. Otherwise, it shall set the stop and 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 segme...