Road safety marking system including multi-layer grooving

Abstract

A road surface safety marking system including multilayer grooving according to one embodiment of the present invention comprises a first groove having a first width that is recessed in a multilayer structure from the road pavement and a second groove that is spaced apart from the first groove by a predetermined distance, extends in the same direction as the extension direction of the first groove, and has a second width smaller than the first width. The first groove may include a first groove recessed to a predetermined depth with the first width, a second groove recessed downward from the center of the bottom surface of the first groove, and a marking module disposed in the first groove that reflects or emits incident light.

Description

Technology Field

[0001] The present invention relates to a road surface safety marking system including multi-layer grooving, and more specifically, to a road surface safety marking system including multi-layer grooving that simultaneously satisfies drainage, visual guidance, and warning functions. Background Technology

[0002] Conventional road grooving technology primarily adopts a single-groove structure to improve drainage performance or prevent slipping. This single-groove structure has a uniform width and depth, forming grooves on the road surface to facilitate water drainage and increase traction between vehicle tires and the road. This technology is widely used due to its relatively simple structure and construction method.

[0003] However, this single-groove structure has several limitations. In particular, problems related to road markings are prominent. Road markings, such as letters or arrows painted on the road surface, wear down over time, and visibility is significantly reduced due to hydroplaning during rain. This makes it difficult for drivers to maintain visibility at night or in rainy conditions and can have a negative impact on traffic safety.

[0004] Furthermore, a single groove structure has limitations in adapting to diverse road conditions and environments. For instance, because the width and depth of the groove are constant, it may not fully deliver the drainage performance or anti-slip effects required for specific road sections. This issue is particularly pronounced in situations of heavy traffic or adverse weather conditions, raising the need for improvements to existing technology. The problem to be solved

[0005] The objective of the present invention is to provide a road surface safety marking system including multi-layer grooving that simultaneously satisfies drainage, visual guidance, and warning functions. means of solving the problem

[0006] In one embodiment of the present invention, a road surface safety marking system may be provided. The road surface safety marking system may include a first groove that is recessed in a multi-layered structure from the road pavement and has a first width, and a second groove that is spaced apart from the first groove by a predetermined distance, extends in the same direction as the extension direction of the first groove, and has a second width smaller than the first width. The first groove may include a first groove recessed to a predetermined depth with the first width, a second groove recessed downward from the center of the bottom surface of the first groove, and a display module disposed in the first groove that reflects or emits incident light.

[0007] In one embodiment of the present invention, the road surface safety marking system may further include a support frame that supports the marking module from below. The support frame may include a first frame extending upward from the bottom surface of the second groove, a second frame bent from the first frame and extending to a side wall defining the first groove and having a first through hole defined on its upper surface, and a third frame bent from the second frame and extending to the step between the first groove and the second groove.

[0008] In one embodiment of the present invention, a support rib extending to a side wall defining the second groove is coupled to the first frame, and a second through hole may be defined above the support rib.

[0009] In one embodiment of the present invention, the support frame may further include fixing protrusions disposed inwardly from the first through hole and protruding upward. The display module may include a support plate disposed between the fixing protrusions and seated on the second frame, a display unit coupled to the support plate and reflecting or emitting incident light, and a control box coupled to the lower side of the support plate and controlling the display unit.

[0010] In one embodiment of the present invention, a scattering module may be coupled to the side of the display unit, through which light emitted from the display unit is transmitted and in which scattering particles are disposed inside. The outer surface of the scattering module may have a structure inclined downward.

[0011] In one embodiment of the present invention, the second groove may include a first portion contacted by the third frame and a second portion adjacent to the first portion. A reflection module that faces the scattering module and reflects light emitted from the display portion may be coupled to the second portion. The outer surface of the reflection module may have a structure inclined downward.

[0012] In one embodiment of the present invention, the two side walls defining the first groove may have an asymmetric structure having different angles of inclination. The angle of inclination of one side wall adjacent to the center line of the road may be greater than that of the other side wall.

[0013] In one embodiment of the present invention, a reinforcing projection positioned inwardly to the fixing projections may be defined on the upper surface of the second frame. An insertion groove to which the reinforcing projection is coupled may be defined on the lower surface of the support plate. A moisture-absorbing material may be disposed on the outer surface of the reinforcing projection.

[0014] In one embodiment of the present invention, a first height adjustment member for adjusting the height from the bottom surface of the second groove may be disposed at the bottom of the first frame. A second height adjustment member for adjusting the height from the bottom surface of the first groove may be disposed at the bottom of the third frame.

[0015] In one embodiment of the present invention, a third groove may be further included adjacent to the second groove, arranged in a predetermined pattern on a plane, and reflecting light. The third groove may include a central groove that extends in the same direction as the extension of the second groove, widens in a plane and is symmetrical toward the left and right as it moves toward the direction of travel of the vehicle, a first lateral groove arranged to the left of the central groove and widens to the left of the plane as it moves toward the direction of travel of the vehicle, and a second lateral groove arranged to the right of the central groove and widens to the right of the plane as it moves toward the direction of travel of the vehicle. A first front reflector member arranged on the front of the plane and reflecting light, a first left reflector member arranged on the left side of the plane and reflecting light, and a first right reflector member arranged on the right side of the plane and reflecting light may be coupled to the central groove. A second front reflective member positioned on the front surface of the plane and a second left reflective member positioned on the left surface of the plane may be combined with the first lateral groove. A third front reflective member positioned on the front surface of the plane and a second right reflective member positioned on the right surface of the plane may be combined with the second lateral groove. Effects of the invention

[0016] According to one embodiment of the present invention, drainage performance can be improved by forming a multilayer structure including a first groove and a second groove. In addition, excellent visibility can be provided even at night and during rain by placing a display module within the first groove. Brief explanation of the drawing

[0017] FIG. 1 is a plan view of a road surface safety marking system including multilayer grooving according to one embodiment of the present invention. FIG. 2 is a cross-sectional view of a road surface according to one embodiment of the present invention. FIG. 3 is a cross-sectional view of the first grooving according to one embodiment of the present invention. FIG. 4 is a cross-sectional view of the first grooving according to one embodiment of the present invention. FIG. 5 is a plan view of the second grooving and the third grooving according to one embodiment of the present invention. Specific details for implementing the invention

[0018] To fully understand the structure and effects of the present invention, preferred embodiments of the present invention are described with reference to the attached drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms and various modifications can be made. The description of the embodiments is provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. In the attached drawings, the components are depicted enlarged from their actual size for convenience of explanation, and the proportions of each component may be exaggerated or reduced.

[0019] Where a component is described as being "on" or "in contact" with another component, it should be understood that while it may be directly touching or connected to the other component, there may also be another component in between. On the other hand, where a component is described as being "immediately on" or "in contact" with another component, it should be understood that there is no other component in between. Other expressions describing the relationship between components, such as "between" and "directly between," can be interpreted in the same way.

[0020] Terms such as "first," "second," etc., may be used to describe various components, but said components shall not be limited by said terms. Such terms may be used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0021] A singular expression includes a plural expression unless the context clearly indicates otherwise. Terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and may be interpreted as implying that one or more other features, numbers, steps, actions, components, parts, or combinations thereof may be added.

[0022] Unless otherwise defined, the terms used in the embodiments of the present invention may be interpreted in the sense commonly known to those skilled in the art.

[0023] Hereinafter, a road surface safety marking system including multi-layer grooving according to one embodiment of the present invention will be described.

[0025] FIG. 1 is a plan view of a road surface safety marking system including multilayer grooving according to one embodiment of the present invention.

[0026] Referring to FIG. 1, a vehicle (CA) may be a moving body traveling on a road surface (PA). The vehicle (CA) may receive visual and auditory information from a road surface safety marking system according to the present invention. The driver may drive the vehicle (CA) and drive safely along a lane (MI).

[0027] The road surface (PA) may refer to the surface of a road. The road surface safety marking system according to the present invention may be formed on the road surface (PA). The road surface (PA) may be composed of asphalt or concrete material.

[0028] A lane (MI) is formed on a road surface (PA) and can guide the driving path of a vehicle (CA). The lane (MI) can serve to distinguish the lane in which the vehicle (CA) travels. The lane (MI) may include a first grooving (100), a second grooving (200), and a third grooving (300).

[0029] The first groove (100) may be a groove embedded in a multi-layered structure from the road pavement. The first groove (100) may have a first width. The first groove (100) may provide a visual guidance function along with a drainage function.

[0030] The first groove (100) may be spaced apart at predetermined intervals along the direction of travel of the vehicle (CA). A display module may be placed inside the first groove (100) to provide high visibility to the driver even at night or in rainy conditions. This arrangement may help the driver clearly recognize the lane (MI). The first groove (100) may be wider than the second groove (200) and the third groove (300) and may be placed adjacent to the center lane (MI).

[0031] In one embodiment of the present invention, the spacing of the first groove (100) can be adjusted according to the radius of curvature of the road. For example, in a sharp curve section, the spacing of the first groove (100) can be narrowed to provide continuous visual information to the driver. In a straight section, the spacing of the first groove (100) can be widened to enable economical construction.

[0032] The second groove (200) may be formed at a predetermined distance from the first groove (100). The second groove (200) may extend in the same direction as the extension direction of the first groove (100). The second groove (200) may have a second width smaller than the first width of the first groove (100).

[0033] The second groove (200) can perform the role of improving the drainage performance of the road surface (PA). A plurality of second grooves (200) are arranged parallel to both sides of the first groove (100) to rapidly discharge rainwater on the road surface (PA). This prevents hydroplaning and ensures driving stability of the vehicle (CA).

[0034] In one embodiment of the present invention, the depth and width of the second groove (200) may be designed differently depending on the expected rainfall or the slope of the road. In areas with high rainfall, the cross-sectional area of ​​the second groove (200) may be increased to maximize drainage efficiency. Additionally, an anti-slip treatment may be added to the surface of the second groove (200).

[0035] The third groove (300) may be arranged in a predetermined pattern on a plane adjacent to the second groove (200). The third groove (300) may reflect incident light to provide warning or guidance information to the driver. The third groove (300) may generate noise or vibration when the tires of the vehicle (CA) pass over it to alert the driver.

[0036] The third grooving (300) can be formed in a pattern that widens as it moves toward the direction of travel of the vehicle (CA). This pattern can provide a visual guidance effect to the driver to prevent lane departure (MI) or to guide the vehicle to proceed in a specific direction. The third grooving (300) can effectively reflect the headlights of the vehicle (CA) at night to improve visibility.

[0037] In one embodiment of the present invention, a high-brightness reflective sheet or reflective paint may be applied to the inner surface of the third groove (300). Additionally, the pattern of the third groove (300) may be modified into the form of an arrow, a letter, or a specific symbol to convey more specific information to the driver. For example, a zigzag pattern of the third groove (300) may be applied in a drowsy driving prevention section.

[0039] FIG. 2 is a cross-sectional view of a road surface according to an embodiment of the present invention. Hereinafter, the same reference numerals are used for configurations identical to those described above, and redundant descriptions are omitted.

[0040] Referring to FIGS. 1 and 2, a cross-sectional structure of a road surface safety marking system may be illustrated. A first groove (100) may be formed by being indented into the road surface (PA) in a multi-layered structure. The first groove (100) may have a first width and a deep depth that is relatively wider than the second groove (200) or the third groove (300). This multi-layered structure performs the function of rapidly draining a large amount of rainwater and can provide a space in which a display module (not shown) providing visual information can be stably installed.

[0041] The second groove (200) may be extended in the same direction as the extension direction of the first groove (100). The second groove (200) may be spaced apart from the first groove (100) at a predetermined distance in a direction away from the center lane (MI). The second groove (200) has a second width (DI1) and performs the function of draining surface water of the road surface (PA) to prevent hydroplaning. The second groove (200) may have a second width (DI1) that is smaller than the first width of the first groove (100).

[0042] The third groove (300) may be arranged adjacent to and parallel to the second groove (200). The third groove (300) may have a third width (DI3). The third groove (300) may serve to improve the drainage performance of the road surface (PA) together with the second groove (200), and may provide a warning function that alerts the driver by generating noise or vibration when the tires of a vehicle (CA) pass over it.

[0043] The second width (DI1) can define the width of the second grooving (200), and the third width (DI3) can define the width of the third grooving (300). The third width (DI3) may be larger than the second width (DI1). The second width (DI1) and the third width (DI3) may be set to be the same or different depending on the road design standards or expected rainfall. For example, in sections where drainage performance must be maximized, the second width (DI1) and the third width (DI3) may be designed to be wider. On the other hand, in sections where the focus is on warning functions, they may be designed to be widths that effectively generate friction sound with the tires.

[0044] The road surface safety marking system of the present invention can be constructed by combining a plurality of grooves having different cross-sectional shapes. The first groove (100) may have a deep and wide multi-layer structure. The second groove (200) and the third groove (300) may have a relatively shallow and narrow single groove structure. Through this structural combination, the road surface safety marking system can effectively perform drainage, visual guidance, and auditory warning functions simultaneously.

[0046] FIG. 3 is a cross-sectional view of the first grooving according to one embodiment of the present invention.

[0047] Referring to FIG. 3, the first groove (100) can be embedded in the road pavement in a multi-layered structure. The first groove (100) may have a first width. The first groove (100) may include a support frame (120), a display module (130), and a scattering module (140). The first groove (100) may be positioned adjacent to a lane (MI) of the road to inform the driver of the location of the lane (MI). The first groove (100) may provide visual information to the driver. The first groove (100) may perform the function of assisting in the drainage of the road surface. The multi-layered structure of the first groove (100) may establish an efficient drainage system. The multi-layered structure of the first groove (100) may protect the display module (130) installed inside from external impact.

[0048] The first groove (100) may include a first groove (111) and a second groove (112). The first groove (111) may be an upper structure recessed to a predetermined depth with a first width from the road pavement surface. The first groove (111) may serve as a passage for additionally draining rainwater from the road surface. The second groove (112) may be a lower structure recessed downward from the center of the bottom surface of the first groove (111). The second groove (112) may serve as a passage for additionally draining rainwater.

[0049] The second groove (112) may include a first part (112a) and a second part (112b). The first part (112a) may form the lower region of the second groove (112). The first part (112a) may provide a stepped structure in which the third frame (123) of the support frame (120) contacts and rests. The second part (112b) may be adjacent to the first part (112a). The second part (112b) may extend upward and be connected to the side wall of the first groove (111). The structure of the second groove (112) may enable stable fixation of the support frame (120).

[0050] The support frame (120) may be a structure that supports the display module (130) from below. The support frame (120) may be installed inside the first groove (100). The support frame (120) may serve to protect the display module (130) and fix it in place. The support frame (120) may include a first frame (121), a second frame (122), a third frame (123), a support rib (124), and a fixing projection (125).

[0051] The first frame (121) may be a vertical structure extending upward from the bottom surface of the second groove (112). The first frame (121) may serve as a central column of the support frame (120). The first frame (121) may support the load of the entire structure. A storage box (134) may be formed inside the first frame (121). The storage box (134) may store a control box (132) or a connecting wire (WI).

[0052] The second frame (122) may be bent and extended from the top of the first frame (121). The second frame (122) may be extended to a side wall defining the first groove (111). The second frame (122) may provide an upper surface on which the support plate (131) of the display module (130) rests. A first through hole (HO1) may be defined on the upper surface of the second frame (122). Water on the road may be drained into the first groove (111) through the first through hole (HO1).

[0053] The third frame (123) may be bent downward and extended from the end of the second frame (122). The third frame (123) may be extended to the step between the first groove (111) and the second groove (112). The third frame (123) may contact the upper surface of the first part (112a) to secure the support frame (120). The structure of the third frame (123) can reinforce the support force of the support frame (120) against vibrations or shocks caused by vehicle traffic.

[0054] The support rib (124) can be attached to the first frame (121). The support rib (124) can extend to the side wall defining the second groove (112). The support rib (124) can serve to improve structural stability by reinforcing the lateral rigidity of the support frame (120). A second through hole (HO2) can be defined above the support rib (124). Water inside the first groove (111) can be drained to the center of the second groove (112) through the second through hole (HO2).

[0055] A fixing projection (125) may be positioned on the upper surface of the second frame (122). The fixing projection (125) may have a structure that protrudes upward. A plurality of fixing projections (125) may be positioned inside the first through hole (HO1). The fixing projection (125) may guide the support plate (131) of the display module (130) to be positioned. The fixing projection (125) may increase the fixing force by restricting movement in the horizontal direction.

[0056] The display module (130) may be a device that provides visual information to the driver by reflecting or emitting incident light. The display module (130) may be supported by a support frame (120). The display module (130) may be placed within a first groove (111). The display module (130) may include a support plate (131), a control box (132), and a display unit (133).

[0057] The support plate (131) may be a plate-shaped member forming the lower structure of the display module (130). The support plate (131) may be seated on the upper surface of the second frame (122). The support plate (131) may be positioned between the fixing protrusions (125) to fix its position. The support plate (131) may serve to support the display part (133) coupled to the upper part. The support plate (131) may serve to support the control box (132) coupled to the lower part.

[0058] The control box (132) can be coupled to the lower side of the support plate (131). The control box (132) can control the operation of the display unit (133). The interior of the control box (132) may include a driving circuit that controls the light emission of the display unit (133). The interior of the control box (132) may include a power supply. The interior of the control box (132) may include a communication module with an external sensor. A connection line (WI) can be connected to the control box (132). The connection line (WI) can transmit power or control signals.

[0059] The display portion (133) may be coupled to the support plate (131). The display portion (133) may be a part recognized by the driver. The display portion (133) may reflect incident light or emit light. In one embodiment of the present invention, the display portion (133) may include a retroreflective sheet or a light-emitting element that reflects incident light from the outside. For example, the light-emitting element of the display portion (133) may be a light-emitting diode (LED), an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), a laser diode (LD), a plasma display panel (PDP), a field emission display (FED), and a liquid crystal display (LCD). However, the configuration of the present invention is not limited thereto and may be modified within the scope that can be adopted by those skilled in the art.

[0060] A scattering module (140) can be attached to the side of the display unit (133). Light emitted from the display unit (133) can pass through the scattering module (140). The scattering module (140) can serve to diffuse the light emitted from the display unit (133). Scattering particles may be placed inside the scattering module (140). The scattering module (140) can improve visibility so that the driver can perceive the display unit (133) from an angle. The outer surface of the scattering module (140) may have a structure that slopes downward. The sloped outer surface of the scattering module (140) can induce rainwater or foreign matter to flow down without accumulating on the surface.

[0061] The connecting line (WI) may be wiring that supplies power and signals from an external power source or control device to the display module (130). The connecting line (WI) may be connected to the control box (132) through a storage box (134) inside the support frame (120). The arrangement of the connecting line (WI) may protect the connecting line (WI) from the external environment. The arrangement of the connecting line (WI) may facilitate maintenance of the system. The lane (MI) may be formed at the same height as the top of the first grooving (100). The lane (MI) may constitute part of the road.

[0063] FIG. 4 is a cross-sectional view of the first grooving according to one embodiment of the present invention.

[0064] Referring to FIGS. 3 and 4, the first grooving (100) may include a multilayer groove (110), a support frame (120), a display module (130), a scattering module (140), and a reflection module (150). The first grooving (100) can perform an efficient drainage function through a multilayer structure. Additionally, the first grooving (100) may include various modules inside to provide visual information to the driver.

[0065] The two side walls defining the first groove (111) may have an asymmetric structure with different angles of inclination. For example, the angle of inclination (α) of one side wall adjacent to the center lane (MI) of the road may be greater than the angle of inclination of the other side wall. Among the side walls of the first groove (111), the angle of inclination of the side wall adjacent to the center lane (MI) of the road may be greater than the angle of inclination of the side wall further from the center lane (MI). Accordingly, the angle of inclination of the reflection module (150) also increases, so that light reflected by the reflection module (150) can travel toward the driver located above.

[0066] In addition, this asymmetrical structure can optimize drainage efficiency by taking into account the vehicle's driving direction and road characteristics. The side wall with a large angle of inclination can guide rainwater more quickly to the bottom of the first groove (111), thereby effectively reducing the water film phenomenon on the road surface.

[0067] The second groove (112) may include a first portion (112a) to which the third frame (123) contacts, and a second portion (112b) adjacent to the first portion (112a). The first portion (112a) may provide a contact surface for stable fixation of the support frame (120). The second portion (112b) may provide a space for additional functional modules, such as a scattering module (140) and a reflection module (150), to be placed. This separated spatial configuration clarifies the function of each component and facilitates maintenance.

[0068] The support frame (120) can perform the function of protecting the display module (130) from external impact and moisture and stably supporting it. In one embodiment of the present invention, a reinforcing projection (126) positioned inwardly from the fixing projections (125) may be defined on the upper surface of the second frame (122). An insertion groove (HU) to which the reinforcing projection (126) is coupled may be defined on the lower surface of the support plate (131). The combined structure of the reinforcing projection (126) and the insertion groove (HU) can enable the support plate (131) to be more firmly fixed to the support frame (120).

[0069] In one embodiment of the present invention, a moisture-absorbing material may be disposed on the outer surface of the reinforcing projection (126). The moisture-absorbing material can absorb moisture that may flow into the first groove (100) and protect electronic components such as the control box (132) of the display module (130). For example, the moisture-absorbing material may be silica gel, calcium chloride, zeolite, activated alumina, bentonite clay, molecular sieve, or super absorbent polymer (SAP). However, the composition of the present invention is not limited thereto and may be modified within the scope that can be adopted by those skilled in the art.

[0070] The reflection module (150) can be coupled to the second part (112b) of the second groove (112). The reflection module (150) can be positioned opposite the scattering module (140). The reflection module (150) can perform the function of improving the driver's visibility by reflecting light coming from the display unit (133).

[0071] The outer surface of the reflection module (150) may have a structure that slopes downward. This sloped structure reflects an external light source, such as the headlights of a vehicle, upward, thereby ensuring visibility even when the display module (130) is deactivated. Additionally, it can improve visibility by reflecting light emitted from the display module (130) upward. Furthermore, the sloped outer surface prevents rainwater or foreign matter from accumulating on the surface, thereby preventing a decrease in reflection performance. Since the reflection performance of the reflection module (150) is directly related to the safety of the driver, it may be important to select the optimal reflection angle and material.

[0072] In one embodiment of the present invention, the reflection module (150) may have various materials and structures. For example, the reflection module (150) may include a microprismatic sheet, a glass bead reflective sheet, a metalized film, a high-intensity reflective paint, a retroreflective tape, a corner cube reflector, or a total internal reflection prism. However, the configuration of the present invention is not limited thereto and may be modified within the scope that can be adopted by those skilled in the art.

[0073] The first height adjustment member (SP1) may be positioned at the bottom of the first frame (121). The first height adjustment member (SP1) may perform the function of adjusting the height of the support frame (120) from the bottom surface of the second groove (112). The second height adjustment member (SP2) may be positioned at the bottom of the third frame (123). The second height adjustment member (SP2) may perform the function of adjusting the height of the support frame (120) from the bottom surface of the first groove (111).

[0074] The first height adjustment member (SP1) and the second height adjustment member (SP2) can maintain the horizontal level of the support frame (120) in response to unevenness or subsidence of the road pavement. This ensures that the display module (130) always maintains a constant height relative to the road surface, thereby providing consistent visual information to the driver. Additionally, the height adjustment function can be used to correct construction errors during initial installation or to facilitate the replacement of the module during maintenance.

[0075] In one embodiment of the present invention, the first height adjustment member (SP1) and the second height adjustment member (SP2) may adopt various mechanical or electrical driving methods. For example, the first height adjustment member (SP1) and the second height adjustment member (SP2) may be a screw jack, a hydraulic lift, a pneumatic actuator, a piezoelectric actuator, a shape memory alloy wire, an electric motor and gear system, or an elastomeric damper. However, the configuration of the present invention is not limited thereto and may be modified within the scope that can be adopted by those skilled in the art.

[0077] FIG. 5 is a plan view of the second grooving and the third grooving according to one embodiment of the present invention.

[0078] Referring to FIG. 5, the second groove (200) may be arranged parallel to the first groove (100) at a predetermined distance apart. The second groove (200) may serve to improve the drainage performance of the road surface (PA).

[0079] The road surface safety marking system may further include a third groove (300). The third groove (300) may be positioned adjacent to the second groove (200). The third groove (300) is formed in a predetermined pattern on a plane and can provide visual guidance and warning functions to the driver by reflecting light emitted from the vehicle (CA).

[0080] The third groove (300) may include a central groove (310), a first lateral groove (320), and a second lateral groove (330). The central groove (310) may have a structure that is symmetrical with respect to the center line (CL). The first lateral groove (320) and the second lateral groove (330) may be placed on each side of the central groove (310) to form an overall visual pattern.

[0081] The central groove (310) may be extended in the same direction as the extension direction of the second groove (200). The central groove (310) may have a shape in which the width of the planar groove gradually widens as it moves in the direction of travel of the vehicle (CA). The shape of the central groove (310) may serve to naturally guide the driver's gaze and prevent distraction from looking ahead.

[0082] Multiple reflective members may be attached to the central groove (310). For example, a first front reflective member (FBI1) may be placed on the front surface of the central groove (310) in a planar view. A first left reflective member (LBI1) may be attached to the left side surface of the central groove (310) in a planar view. A first right reflective member (RBI1) may be attached to the right side surface of the central groove (310) in a planar view.

[0083] The first front reflector (FBI1) can reflect the headlights of the vehicle (CA) forward to clearly inform the driver of the presence of the grooving. The first left reflector (LBI1) and the first right reflector (RBI1) can reflect light incident from the left and right, respectively. The first left reflector (LBI1) and the first right reflector (RBI1) can ensure visibility of the central grooving (310) from various angles. The first left reflector (LBI1) and the first right reflector (RBI1) can improve safety during day and night and in bad weather.

[0084] The first lateral groove (320) may be positioned to the left of the central groove (310). The first lateral groove (320) may have an asymmetrical shape that widens to the left in the plane as it moves in the direction of travel of the vehicle (CA). The first lateral groove (320) may form an expanding visual pattern together with the central groove (310) to draw the driver's attention.

[0085] A second front reflective member (FBI2) positioned on the front surface of the plane may be coupled to the first side groove (320). A second left reflective member (LBI2) positioned on the left surface of the plane may be coupled to the first side groove (320). The second front reflective member (FBI2) and the second left reflective member (LBI2) can perform the function of reflecting the light of a vehicle (CA) to guide the boundary of the left lane or the driving direction.

[0086] The second lateral groove (330) may be positioned to the right of the central groove (310). The second lateral groove (330) may have an asymmetrical shape that widens to the right in the plane as it moves in the direction of travel of the vehicle (CA). The second lateral groove (330) may form a symmetrical pattern with respect to the first lateral groove (320) and the center line (CL) to provide a sense of visual stability.

[0087] A third front reflective member (FBI3) positioned on the front surface of the plane can be coupled to the second lateral groove (330). A second right reflective member (RBI2) positioned on the right surface of the plane can be coupled to the second lateral groove (330). The third front reflective member (FBI3) and the second right reflective member (RBI2) can reflect the light of the vehicle (CA) to effectively guide the boundary of the right lane or the driving direction.

[0088] In one embodiment of the present invention, the first front reflector (FBI1), the second front reflector (FBI2), the third front reflector (FBI3), the first left reflector (LBI1), the second left reflector (LBI2), the first right reflector (RBI1), and the second right reflector (RBI2) may be implemented in various materials. For example, the reflectors may be a high-brightness reflective sheet, a paint containing glass beads, a prism-type reflector, a ceramic reflector, a metal reflector, a plastic reflector, or a light-emitting diode (LED) module. However, the configuration of the present invention is not limited thereto and may be modified within the scope that can be adopted by those skilled in the art.

[0089] The second groove (200) may have a second width (DI1). The beginning of the third groove (300) may have a third width (DI3) that is smaller than the second width (DI1). The difference in width between the second width (DI1) of the second groove (200) and the third width (DI3) of the third groove (300) can regulate the noise and vibration patterns generated by the vehicle (CA) tire passing through the groove. The difference in width between the second width (DI1) of the second groove (200) and the third width (DI3) of the third groove (300) can contribute to providing an auditory warning to the driver.

[0090] The center line (CL) may be an imaginary line to explain the symmetrical structure of the third groove (300). The center groove (310) may be formed symmetrically with respect to the center line (CL). The first lateral groove (320) and the second lateral groove (330) may also be symmetrically arranged with respect to the center line (CL) to maintain the balance of the overall pattern.

[0092] Although various embodiments of the present invention have been described individually above, each embodiment is not required to be implemented alone, and the configuration and operation of each embodiment may be implemented in combination with at least one other embodiment.

[0093] Furthermore, although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above. Various modifications are possible by those skilled in the art without departing from the essence of the invention as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention. Explanation of the symbols

[0094] 100 1st Grooving 110 Multilayer Home 111 Home 1 112 2nd Home 112a Part 1 112b Part 2 120 support frames 121 First Frame 122 Second Frame 123 Third Frame 124 Jiji Liv 125 fixed protrusion 130 display module 131 Support Plate 132 Control Box 133 Display section 134 storage boxes 140 Spawning Modules 150 reflection modules 200 2nd Grooving 300 3rd Grooving 310 Central Grooving 320 1st Lateral Grooving 330 Second Lateral Grooving

Claims

Claim 1 A first groove having a first width and recessed in a multi-layered structure from the road pavement; and a second groove spaced apart from the first groove by a predetermined distance, extending in the same direction as the extension direction of the first groove and having a second width smaller than the first width, wherein the first groove includes a first groove recessed to a predetermined depth with the first width; a second groove recessed downward from the center of the bottom surface of the first groove; and a display module disposed in the first groove that reflects or emits incident light, wherein the first groove further includes a support frame that supports the display module from below, wherein the support frame includes a first frame extending upward from the bottom surface of the second groove; and a second frame that is bent from the first frame, extends to a side wall defining the first groove, and has a first through hole defined on its upper surface. and includes a third frame that is bent from the second frame and extends to the step between the first groove and the second groove, wherein the first frame is coupled with a support rib extending to a side wall defining the second groove, and a second through hole is defined above the support rib, and the support frame further includes fixing protrusions that are positioned inwardly to the first through hole and protrude upward, and the display module comprises: a support plate positioned between the fixing protrusions and seated on the second frame; and a display part coupled on the support plate and reflecting or emitting incident light. A road surface safety marking system comprising a control box coupled to the lower side of the support plate and controlling the display unit, a scattering module coupled to the side of the display unit through which light from the display unit is transmitted and scattering particles are disposed inside, the outer surface of the scattering module is inclined downward, the second groove includes a first part contacted by the third frame and a second part adjacent to the first part, a reflection module coupled to the second part facing the scattering module and reflecting light from the display unit, and the outer surface of the reflection module including a multi-layer grooving inclined downward. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 A road surface safety marking system according to claim 1, wherein the two side walls defining the first groove have an asymmetric structure having different angles of inclination, and the angle of inclination of one side wall adjacent to the center lane of the road is greater than that of the other side wall. Claim 8 A road surface safety marking system according to claim 7, wherein a reinforcing projection positioned inwardly to the fixed projections is defined on the upper surface of the second frame, an insertion groove to which the reinforcing projection is coupled is defined on the lower surface of the support plate, and a moisture-absorbing material is disposed on the outer surface of the reinforcing projection, comprising a multilayer grooving. Claim 9 A road surface safety marking system comprising a multi-layer grooving, wherein, in claim 8, a first height adjustment member for adjusting the height from the bottom surface of the second groove is disposed at the bottom of the first frame, and a second height adjustment member for adjusting the height from the bottom surface of the first groove is disposed at the bottom of the third frame. Claim 10 In claim 9, the structure further comprises a third groove adjacent to the second groove, arranged in a predetermined pattern in a planar shape, and reflecting light, wherein the third groove is a central groove that extends in the same direction as the extension of the second groove, widens in a planar shape as it moves toward the direction of travel of the vehicle, and is symmetrical to the left and right; and a first lateral groove arranged to the left of the central groove, widening to the left in a planar shape as it moves toward the direction of travel of the vehicle. A road surface safety marking system comprising a multi-layer groove, wherein the groove is positioned to the right of the central groove and has a second lateral groove that widens to the right in the planar direction of travel of the vehicle, wherein the central groove is coupled with a first front reflective member positioned on the front of the planar surface to reflect light, a first left reflective member positioned on the left side of the planar surface to reflect light, and a first right reflective member positioned on the right side of the planar surface to reflect light, wherein the first lateral groove is coupled with a second front reflective member positioned on the front of the planar surface and a second left reflective member positioned on the left side of the planar surface, and the second lateral groove is coupled with a third front reflective member positioned on the front of the planar surface and a second right reflective member positioned on the right side of the planar surface.

Images