Prefabricated lifting pedestrian crossing device and construction method thereof

Abstract

The present invention discloses a prefabricated lifting pedestrian crossing device and a construction method thereof, and belongs to the technical field of traffic engineering. The device comprises a base, and a pedestrian crossing assembly module and a ramp component are arranged above the base, and a plurality of the ramp components are connected to both sides of the pedestrian crossing assembly module; the pedestrian crossing assembly module comprises a convex assembly component and a concave assembly component, the convex assembly component comprises a lap block, the concave assembly component comprises a lap groove, the lap block is adapted to the lap groove, and a plurality of convex assembly components and a plurality of concave assembly components are interlocked and connected with each other through the lap block and the lap groove; the ramp component comprises a lap block, and the lap block of the ramp component is interlocked and connected with the lap groove of the concave assembly component. The present invention can effectively reduce the speed of motor vehicles, ensure the safety of pedestrians crossing the street, has a simple structure, fast construction speed, and convenient disassembly and maintenance, and can be widely used in sections with large pedestrian flow.

Description

Technical Field

[0001] The invention relates to a prefabricated lifting type pedestrian crossing device and a construction method thereof, belonging to the technical field of traffic engineering. Background Art

[0002] Especially for the elderly and children, they are at high risk of traffic accidents on zebra crossings. Once an accident occurs, it will cause extremely serious casualties.

[0003] The usual way to improve the safety of pedestrian crossings is to give advance warning and reduce the speed of motor vehicles. According to "Road Traffic Signs and Markings" (GB 5768), pedestrian crossing signs, "Watch out for pedestrians" warning signs and pedestrian crossing warning signs are set up at pedestrian crossings to remind drivers to pay attention to the pedestrian crossings ahead. In actual application, the practice of reminding drivers to reduce speed through conventional signs and markings is not effective. Drivers often ignore or fail to notice these signs and markings, making it difficult to effectively ensure the safety of pedestrian crossings.

[0004] Another effective way to improve the safety of pedestrian crossings is the "lifted pedestrian crossing". It is to raise the entire crosswalk to the height of the curb, so that the sidewalk and the crosswalk are at the same height, ensuring that pedestrians always walk at the same height. At the same time, due to the longitudinal change in the height of the roadway, motor vehicles are forced to reduce their speed when passing through the crosswalk, which achieves the purpose of physically reducing the speed, thereby greatly improving the safety of pedestrian crossings.

[0005] At present, the "lifted pedestrian crossing" is rarely used in China. On the one hand, the applicability of this calming measure in my country is still under discussion, and the standards and specifications are not yet mature, so there is a certain resistance to large-scale implementation; on the other hand, the conventional "lifted pedestrian crossing" involves the transformation of civil engineering, and the construction is relatively complicated, especially for some roads in old urban areas, which do not have the conditions for transformation. A simpler construction method is needed to improve this problem. Summary of the invention

[0006] In order to solve the above-mentioned problems, the present invention provides a prefabricated elevated pedestrian crossing device and a construction method thereof. The device is assembled and constructed on site by prefabricating components off-site, and has the characteristics of easy installation, small construction impact, and short construction period. It is suitable for pedestrian crossings on roads with large pedestrian flow, especially points with large pedestrian crossing needs such as hospitals, schools, and shopping malls, and can greatly improve the safety of pedestrian crossings.

[0007] The first object of the present invention is to provide a prefabricated elevated pedestrian crossing device, comprising a base, a pedestrian crossing assembly module and a ramp component are arranged above the base, and a plurality of the ramp components are connected to both sides of the pedestrian crossing assembly module; the pedestrian crossing assembly module comprises a convex assembly component and a concave assembly component, the convex assembly component comprises a lap block, the concave assembly component comprises a lap groove, the lap block is adapted to the lap groove, and a plurality of convex assembly components and a plurality of concave assembly components are interlocked and connected with each other through the lap block and the lap groove; the ramp component comprises a lap block, and the lap block of the ramp component and the lap groove of the concave assembly component are interlocked and connected with each other.

[0008] In one embodiment of the present invention, the convex assembly component also includes a first component body, a latch piece and a latch groove, the overlap blocks are arranged at the top of both sides of the first component body, the latch piece is arranged on one side of the first component body, and the latch groove is arranged on a side of the first component body opposite to the latch piece, the latch piece and the latch groove are adapted to each other, and adjacent convex assembly components in the vertical direction are fixedly connected by inserting the latch piece into the latch groove.

[0009] In one embodiment of the present invention, the concave assembly component also includes a second component body, a latch piece and a latch groove, the overlapping groove is arranged at the top of both sides of the second component body, the latch piece is arranged on one side of the second component body, and the latch groove is arranged on a side of the second component body opposite to the latch piece, and the adjacent concave assembly components in the vertical direction are also fixedly connected by inserting the latch piece into the latch groove.

[0010] In one embodiment of the present invention, the slope component includes a third component body and a lap block, the upper end surface of the third component body is a slope structure, the lap block is arranged on the side of the third component body, and the lap block of the slope component is engaged with the lap groove of the concave assembly component.

[0011] In one embodiment of the present invention, the base includes a bottom plate, a partition and a triangular overlap block. The bottom plate is spliced ​​by a number of prefabricated panels and is fixedly connected to the ground by bolts. Partition holes are opened on both sides of the bottom plate. The partition is arranged in the partition holes and is fixedly connected to the bottom plate by shear bolts. The partition is located between the slope component and the concave assembly component; the triangular overlap blocks are arranged on both sides of the slope component, the triangular overlap blocks are fixedly connected to the bottom plate by shear bolts, and the bottom of the triangular overlap blocks is fixedly connected to the ground by bolts.

[0012] In one embodiment of the present invention, the overlapping block is in a hook-shaped structure, and the overlapping groove is adapted to the overlapping block of the hook-shaped structure; the latch piece is in a T-shaped structure, and the latch groove is adapted to the latch piece of the T-shaped structure.

[0013] In one embodiment of the present invention, the slope of the slope component is ≤10%.

[0014] In one embodiment of the present invention, the surface layer of the pedestrian crossing assembly module is anti-slip treated.

[0015] In one embodiment of the present invention, the surface layer of the pedestrian crossing assembly module is painted with striped zebra crossings or colored zebra crossings; the surface layer of the slope component is painted with ground deceleration markings.

[0016] A second object of the present invention is to provide a construction method for a prefabricated elevated pedestrian crossing device, comprising the following steps:

[0017] Step 1: On-site measurement and prefabrication of components; On-site measurement of the length, width, height of the curbstones on both sides, and slope gradient of the pedestrian crossing at the construction site; Determine the size of each component of the pedestrian crossing assembly module, and the height should be flush with the height of the curbstones on both sides; Determine the size of a single prefabricated plate of the base plate for easy transportation and assembly; Determine the size of the prefabricated slope components, partitions, and triangular overlap blocks;

[0018] Step 2: Floor paving construction; Clean the on-site floor, clear the ground markings, and level it with cement mortar; first install the prefabricated panels of the floor horizontally, and fix the floor with bolts. The height of the bolts H is 100-200mm, and the embedding depth H1=1 / 2H-1 / 3H; then install the prefabricated panels of the floor longitudinally until the floor paving construction is completed;

[0019] Step 3: Installation and construction of pedestrian crossing assembly modules: first install one side of the partition, apply adhesive material in the partition hole, insert the partition into the bottom plate partition hole, and fix it with shear bolts; install the concave assembly components and convex assembly components in sequence along the horizontal direction, the overlap blocks are engaged with the overlap grooves, and the inside is fixed with adhesive material; install the concave assembly components and convex assembly components in sequence along the vertical direction, and connect the modules by inserting the latch pieces into the latch grooves; until the construction of the pedestrian crossing assembly module is completed;

[0020] Step 4: Installation and construction of slope components: Install the partition on the other side according to the above method, and then install the slope components on both sides. The overlapping blocks of the slope components are engaged with the overlapping grooves of the concave assembly components, and the inside is fixed by adhesive materials;

[0021] Step 5: Installation and construction of triangular overlap blocks: overlap the triangular overlap blocks on the base plate and fix them with shear bolts; at the same time, pay attention to the smooth connection between the triangular overlap blocks and the slope components to avoid obvious edges and corners;

[0022] Step 6: Pedestrian crossing painting; the standard width of the pedestrian crossing is 400mm, and the distance between two adjacent pedestrian crossings is 600mm; the module surface should be clean and dry during the marking construction, the pedestrian crossing marking should be smooth and bright, and the glass beads should be evenly spread on the marking surface with a content of 0.3-0.34kg / m 2 ; Red paint is sprayed on the surface of the slope components and white deceleration ground markings are drawn.

[0023] Beneficial Effects

[0024] The elevated crosswalk of the present invention can effectively reduce the speed of motor vehicles and ensure the safety of pedestrians crossing the street, fully embodying the concept of people-oriented. Conventional practices have problems such as inconvenient construction. The present invention prefabricates the modular components of the elevated crosswalk and assembles and constructs on site, which greatly improves the convenience of construction. It has the characteristics of simple structure, fast construction speed, and convenient disassembly and maintenance. It can be widely used for pedestrian crossings on roads with large pedestrian flow. It is suitable for pedestrian crossings on roads with large pedestrian flow, especially points with large demand for crossings in surrounding roads such as hospitals, schools, and shopping malls, and can greatly improve the safety of crossings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic plan view of the pedestrian crossing of the present invention.

[0026] Figure 2 It is a three-dimensional schematic diagram of the pedestrian crossing device of the present invention.

[0027] Figure 3 It is a schematic diagram of an explosion of the pedestrian crossing device of the present invention.

[0028] Figure 4 It is a schematic top view of the pedestrian crossing device of the present invention.

[0029] Figure 5 It is a front schematic diagram of the pedestrian crossing device of the present invention.

[0030] Figure 6 It is a three-dimensional schematic diagram of the convex assembly component of the present invention.

[0031] Figure 7 It is a schematic side view of a convex assembly component of the present invention.

[0032] Figure 8 It is a schematic front view of the convex assembly component of the present invention.

[0033] Fig. 9 It is a three-dimensional schematic diagram of a concave assembly component of the present invention.

[0034] Fig.10 It is a schematic side view of a concave assembly component of the present invention.

[0035] Fig.11 It is a front view schematic diagram of a concave assembly component of the present invention.

[0036] Fig.12 It is a three-dimensional schematic diagram of the slope component of the present invention.

[0037] Fig.13 It is a schematic diagram of the connection between the partition and the triangular overlap block of the present invention.

[0038] Among them: 1. Pedestrian crossing assembly module; 11. Convex assembly component; 12. Concave assembly component; 2. Slope component; 3. Base; 31. Triangular lap block; 32. Bottom plate; 33. Partition; 34. Partition hole; 41. Lap block; 42. Pin piece; 43. Pin slot; 44. First component body; 45. Second component body; 46. Third component body; 51. Lap slot; 6. Shear bolt. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Example 1

[0042] like Figure 1-13As shown, the present embodiment provides a prefabricated elevated pedestrian crossing device, including a base 3, above which a pedestrian crossing assembly module 1 and a slope component 2 are arranged, and a plurality of the slope components 2 are connected to both sides of the pedestrian crossing assembly module 1; the pedestrian crossing assembly module 1 includes a convex assembly component 11 and a concave assembly component 12, the convex assembly component 11 includes a lap block 41, and the concave assembly component 12 includes a lap groove 51, the lap block 41 is adapted to the lap groove 51, and a plurality of convex assembly components 11 and a plurality of concave assembly components 12 are interlocked and connected with each other through the lap block 41 and the lap groove 51; the slope component 2 includes a lap block 41, and the lap block 41 of the slope component 2 is interlocked and connected with the lap groove 51 of the concave assembly component 12.

[0043] Furthermore, the convex assembly component 11 also includes a first component body 44, a latch piece 42 and a latch groove 43, the overlap blocks 41 are arranged at the tops of both sides of the first component body 44, the latch piece 42 is arranged on one side of the first component body 44, and the latch groove 43 is arranged on the side of the first component body 44 opposite to the latch piece 42, the latch piece 42 and the latch groove 43 are adapted to each other, and the adjacent convex assembly components 11 in the vertical direction are fixedly connected by inserting the latch piece 42 into the latch groove 43.

[0044] Furthermore, the concave assembly component 12 also includes a second component body 45, a latch piece 42 and a latch groove 43, the overlapping grooves 51 are arranged at the tops of both sides of the second component body 44, the latch piece 42 is arranged on one side of the second component body 45, and the latch groove 43 is arranged on a side of the second component body 45 opposite to the latch piece 42, and the adjacent concave assembly components 12 in the vertical direction are also fixedly connected by inserting the latch piece 42 into the latch groove 43. The adjacent convex assembly components 11 and concave assembly components 12 in the horizontal direction of the crosswalk, and the concave assembly components 12 and the slope component 2 are fixedly connected to each other through the overlap blocks 41 and the overlap grooves 51 to form a stable structure; a number of adjacent convex assembly components 11 and a number of adjacent concave assembly components 12 in the vertical direction of the crosswalk are fixedly connected to each other through the latch members 42 inserted into the latch grooves 43 to form a stable structure, so that the entire pedestrian crossing device is firm and reliable, with a stable structure, and can carry heavy vehicles passing through.

[0045] Optionally, the convex assembly component 11 has a size of a rectangular block of 1 meter × 1 meter, and the concave assembly component 12 has a size of a rectangular block of 1 meter × 1 meter.

[0046] Furthermore, the slope component 2 includes a third component body 46 and a lap block 41, the upper end surface of the third component body 46 is a slope structure, and the lap block 41 is arranged on the side of the third component body 46, and the lap block 41 of the slope component 2 and the lap groove 51 of the concave assembly component 12 are interlocked and connected.

[0047] Furthermore, the base 3 includes a bottom plate 32, a partition 33 and a triangular lap block 31. The bottom plate 32 is spliced ​​by a number of prefabricated panels and fixedly connected to the ground by bolts. Partition holes 34 are opened on both sides of the bottom plate 32. The partition 33 is arranged in the partition hole 34 and fixedly connected to the bottom plate 32 by shear bolts 6. The partition 33 is located between the slope component 2 and the concave assembly component 12; the triangular lap block 31 is arranged on both sides of the slope component 2. The triangular lap block 31 is fixedly connected to the bottom plate 32 by shear bolts 6 to compensate for the height difference. The bottom of the triangular lap block 31 is fixedly connected to the ground by bolts.

[0048] Optionally, the overlapping block 41 is in a hook-shaped structure, and the overlapping groove 51 is adapted to the overlapping block 41 of the hook-shaped structure; the latch member 42 is in a T-shaped structure, and the latch groove 42 is adapted to the latch member 42 of the T-shaped structure.

[0049] Furthermore, the prefabricated elevated pedestrian crossing device is arranged between the sidewalks on both sides of the roadway, and the slope component 2 corresponds to the roadway to facilitate vehicles to pass through the slope component 2, the pedestrian crossing assembly module 1 and the slope component 2 in sequence.

[0050] Among them, the materials of the pedestrian crossing assembly module 1 and the slope component 2 need to meet certain structural strengths and can be prefabricated with concrete. The sizes of the convex assembly component 11 and the concave assembly component 12 can be customized according to the site conditions, generally a rectangular block of 1 meter × 1 meter. The component height is adjusted according to the height of the curb. Considering that the height of the curb on both sides of the road may be inconsistent, the slope is adjusted by adjusting the thickness of the bottom plate 32. The slope of the slope component 2 should be ≤10%, which can be adjusted according to the site conditions. The surface layer of the pedestrian crossing assembly module 1 is treated with anti-slip treatment to increase the friction coefficient. The surface layer of the pedestrian crossing assembly module 1 is generally painted with striped zebra crossings, and the pattern can also be customized according to needs, and assembled on site into a colored zebra crossing. The surface layer of the slope component 2 is painted with colored paint, and text or ground deceleration markings can be used to remind drivers to slow down and give way.

[0051] Example 2

[0052] This embodiment provides a construction method for a prefabricated elevated pedestrian crossing device, the method using a prefabricated elevated pedestrian crossing device provided in Embodiment 1, comprising the following steps:

[0053] Step 1: On-site measurement and prefabrication of components; On-site measurement of the length, width, height of the curbstones on both sides, and slope gradient of the pedestrian crossing at the construction site; Determine the size of each component of the pedestrian crossing assembly module 1, which is generally a 1m×1m rectangular block, and the height is flush with the height of the curbstones on both sides; Determine the size of a single prefabricated plate of the bottom plate 32, generally a single module is 3m×4m, which is easy to transport and assemble; Determine the size of the prefabricated slope component 2, the partition 33, and the triangular overlap block 31;

[0054] Step 2: Floor paving construction; clean the on-site floor, clear the ground markings, and level it with cement mortar; first install the prefabricated panels of the floor 32 in the horizontal direction, and fix the floor 32 with bolts, the height of the bolts H is 100-200mm, and the embedding depth H1=1 / 2H-1 / 3H; then install the prefabricated panels of the floor 32 in the longitudinal direction until the floor 32 paving construction is completed;

[0055] Step 3: Installation and construction of pedestrian crossing assembly module: first install one side partition 33, apply adhesive material in the partition hole 34, insert the partition 33 into the bottom plate partition hole 34, and fix it with shear bolts 6; install the concave assembly components 12 and the convex assembly components 11 in sequence along the horizontal direction, the overlap block 41 is engaged with the overlap groove 51, and the inside is fixed with adhesive material; install the concave assembly components 12 and the convex assembly components 11 in sequence along the longitudinal direction, and connect the modules by inserting the latch member 42 into the latch groove 43; until the construction of the pedestrian crossing assembly module is completed;

[0056] Step 4: Installation of slope components: Install the partition plate 33 on the other side according to the above method, and then install the slope components 2 on both sides. The overlap block 41 of the slope component 2 is engaged with the overlap groove 51 of the concave assembly component size 12, and the inside is fixed by adhesive material;

[0057] Step 5: Installation and construction of triangular overlap blocks; the triangular overlap blocks 31 are overlapped on the bottom plate 32 and fixed to the bottom plate 32 using shear bolts 6; at the same time, attention should be paid to the smooth connection between the triangular overlap blocks 31 and the slope member 2 to avoid obvious edges and corners;

[0058] Step 6: Pedestrian crossing painting; the standard width of the pedestrian crossing is 400mm, and the distance between two adjacent pedestrian crossings is 600mm; the module surface should be clean and dry during the marking construction, the pedestrian crossing marking should be smooth and bright, and the glass beads should be evenly spread on the marking surface with a content of 0.3-0.34kg / m 2 ; The surface of slope component 2 is sprayed with red paint and white deceleration ground markings are drawn.

[0059] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A prefabricated elevated pedestrian crossing device, characterized in that: The invention comprises a base, a pedestrian crossing assembly module and a ramp component are arranged on the top of the base, and a plurality of the ramp components are connected to both sides of the pedestrian crossing assembly module; the pedestrian crossing assembly module comprises a convex assembly component and a concave assembly component, the convex assembly component comprises a lap block, the concave assembly component comprises a lap groove, the lap block is adapted to the lap groove, and a plurality of the convex assembly components and a plurality of the concave assembly components are interlocked and connected with each other through the lap block and the lap groove; the ramp component comprises a lap block, and the lap block of the ramp component and the lap groove of the concave assembly component are interlocked and connected with each other; The convex assembly component further comprises a first component body, a latch member and a latch slot, the overlap blocks are arranged at the tops of both sides of the first component body, the latch member is arranged at one side of the first component body, the latch slot is arranged at a side of the first component body opposite to the latch member, the latch member and the latch slot are matched, and the adjacent convex assembly components in the vertical direction are fixedly connected by inserting the latch members into the latch slots; The concave assembly component further includes a second component body, a latch member and a latch groove, wherein the overlap grooves are arranged at the tops of both sides of the second component body, the latch member is arranged at one side of the second component body, and the latch groove is arranged at a side of the second component body opposite to the latch member, and the adjacent concave assembly components in the vertical direction are also fixedly connected by inserting the latch members into the latch grooves; The slope component includes a third component body and a lap block, the upper end surface of the third component body is a slope structure, the lap block is arranged on the side of the third component body, and the lap block of the slope component is engaged with the lap groove of the concave assembly component; The base comprises a bottom plate, a partition and a triangular overlap block. The bottom plate is formed by splicing a plurality of prefabricated plates and is fixedly connected to the ground by bolts. Partition holes are provided on both sides of the bottom plate. The partition is arranged in the partition holes and is fixedly connected to the bottom plate by shear bolts. The partition is located between the slope component and the concave assembly component. The triangular overlap blocks are arranged on both sides of the slope component. The triangular overlap blocks are fixedly connected to the bottom plate by shear bolts. The bottom of the triangular overlap blocks is fixedly connected to the ground by bolts. The overlapping block is in a hook-shaped structure, and the overlapping groove is matched with the overlapping block of the hook-shaped structure; the latch piece is in a T-shaped structure, and the latch groove is matched with the latch piece of the T-shaped structure.

2. The prefabricated elevated pedestrian crossing device according to claim 1, characterized in that: The slope of the slope component is ≤10%.

3. The prefabricated elevated pedestrian crossing device according to claim 1, characterized in that: The surface layer of the pedestrian crossing assembly module is anti-slip treated.

4. The prefabricated elevated pedestrian crossing device according to claim 1, characterized in that: The surface layer of the pedestrian crossing assembly module is painted with striped zebra crossings or colored zebra crossings; the surface layer of the slope component is painted with ground deceleration markings.

5. A construction method for a prefabricated elevated pedestrian crossing device, characterized in that: The method uses the prefabricated elevated pedestrian crossing device according to any one of claims 1 to 4, and comprises the following steps: Step 1: On-site measurement and prefabrication of components; On-site measurement of the length, width, height of the curbstones on both sides, and slope gradient of the pedestrian crossing at the construction site; Determine the size of each component of the pedestrian crossing assembly module, and the height should be flush with the height of the curbstones on both sides; Determine the size of a single prefabricated plate of the base plate for easy transportation and assembly; Determine the size of the prefabricated slope components, partitions, and triangular overlap blocks; Step 2: Floor paving construction; Clean the on-site floor, clear the ground markings, and level it with cement mortar; first install the prefabricated panels of the floor horizontally, and fix the floor with bolts. The height of the bolts H is 100-200mm, and the embedding depth H1=1 / 2H-1 / 3H; then install the prefabricated panels of the floor longitudinally until the floor paving construction is completed; Step 3: Installation and construction of pedestrian crossing assembly modules: first install one side of the partition, apply adhesive material in the partition hole, insert the partition into the bottom plate partition hole, and fix it with shear bolts; install the concave assembly components and convex assembly components in sequence along the horizontal direction, the overlap blocks are engaged with the overlap grooves, and the inside is fixed with adhesive material; install the concave assembly components and convex assembly components in sequence along the vertical direction, and connect the modules by inserting the latch pieces into the latch grooves; until the construction of the pedestrian crossing assembly module is completed; Step 4: Installation and construction of slope components: Install the partition on the other side according to the above method, and then install the slope components on both sides. The overlapping blocks of the slope components are engaged with the overlapping grooves of the concave assembly components, and the inside is fixed by adhesive materials; Step 5: Installation and construction of triangular overlap blocks: overlap the triangular overlap blocks on the base plate and fix them with shear bolts; at the same time, pay attention to the smooth connection between the triangular overlap blocks and the slope components to avoid obvious edges and corners; Step 6: Pedestrian crossing painting; the standard width of the pedestrian crossing is 400mm, and the distance between two adjacent pedestrian crossings is 600mm; the module surface should be clean and dry during the marking construction, the pedestrian crossing marking should be smooth and bright, and the glass beads should be evenly spread on the marking surface with a content of 0.3-0.34kg / m 2 ; Red paint is sprayed on the surface of the slope components and white deceleration ground markings are drawn.

Images