JP2021038539A - Sign body installation structure - Google Patents

Abstract

To provide a sign body installation structure capable of obtaining a high visual guidance effect by using a fence-like road facility.SOLUTION: A plurality of sign bodies 5a having post sections are erected at intervals along the longitudinal direction of a fence body having posts 2 and beam-shaped parts 3a to 3e. At least one of the posts and the beam-shaped parts of the fence body is provided with a fence reflection part 43 that reflects light. Post reflection parts 53a to 53c that reflect light on the post sections of each of the sign bodies are formed at height positions corresponding to the fence reflection part. Since the post reflection parts are formed at the height position corresponding to the fence reflection part of the fence body, a viewer such as a vehicle driver who visually recognizes these can integrally recognize the fence reflection part and each post reflection part to obtain a high visual guidance effect.SELECTED DRAWING: Figure 3

Description

The present invention relates to an installation structure of a marking body for suppressing contact of a vehicle with a road facility provided with a support such as a guard pipe or a wire fence and a beam-shaped portion.

Fence-shaped road facilities equipped with columns and beam-shaped parts have been conventionally used as a method for preventing lane separation and vehicle deviation from the road, and various configurations for suppressing vehicle contact with the road facilities have been used. Has been proposed.

For example, Patent Document 1 provides a line-of-sight guide that is attached to a pole on which a wire rope is hung, and includes a sheet member that covers the side surface of the pole. A configuration of a line-of-sight guide is proposed in which a fixture attachment portion for attaching a fixture for fixing the seat member is provided on the pole, and a binding band is used as the fixture in the configuration. The configuration is shown.

JP-A-2019-7249

The line-of-sight guidance mark shown in Patent Document 1 is attached to a pole of a so-called wire fence to guide the line of sight. However, since the pole is originally arranged as a support of the fence, the effect of line-of-sight guidance can be obtained. There is a limit.

The present invention provides an installation structure of a sign body capable of obtaining a high line-of-sight guidance effect by using a fence-shaped road facility.

In order to achieve the above object, the present invention has the following configuration.
That is, in the installation structure of the sign body according to the present invention, the support body erected on the installation surface and the sign body for suppressing the vehicle contact with the fence body having the beam-shaped portion extending in the longitudinal direction from the support column are installed. The structure is such that a plurality of marking bodies provided with pillars are erected at intervals along the longitudinal direction of the fence, and the fence reflects light to at least one of the pillars and the beam-shaped portion. It is characterized in that a fence reflecting portion for making the fence is provided, and a pillar reflecting portion for reflecting light is formed at a height position corresponding to the fence reflecting portion on the pillar portion of each of the marking bodies.

According to the installation structure of the marking body according to the present invention, a plurality of marking bodies having pillar reflecting portions for reflecting light formed on the pillar portions are erected at intervals along the longitudinal direction of the fence body, so that each pillar reflection portion is erected. The portions are arranged so as to be aligned in the longitudinal direction, and the line-of-sight guidance effect can be obtained. Further, at least one of the pillars and the beam-shaped portion of the fence body is provided with a fence reflecting portion that reflects light, and each pillar reflecting portion is formed at a height position corresponding to the fence reflecting portion. A viewer such as a vehicle driver who visually recognizes the fence reflecting portion and each pillar reflecting portion can integrally recognize the fence reflecting portion and each pillar reflecting portion to obtain a high line-of-sight guidance effect.

Further, if the marking bodies are arranged near the columns at the longitudinal end of the fence body and the marking bodies are erected at intervals smaller than the intervals between the columns of the fence body, each of the above-mentioned marking bodies can be erected. Since the pillar reflecting portion and the fence reflecting portion are more integrally recognized by the viewer, a higher line-of-sight guidance effect can be obtained, which is preferable.

Further, a first marker body having a first pillar reflecting portion formed at a height position corresponding to the fence reflecting portion and a second pillar reflecting portion formed at a height position different from the first pillar reflecting portion. The sign body includes a second sign body having only the second pillar reflecting portion, and the first sign body is arranged in the vicinity of a pillar at the longitudinal end of the fence body to be erected in plurality. If a plurality of the second marking bodies are arranged outside in the longitudinal direction of the first marking body and a plurality of the second marking bodies are arranged side by side, the first pillar reflecting portion and the fence reflecting portion are integrally recognized by the viewer, and the said Since each of the second pillar markings of the first and second markings is recognized integrally, a high line-of-sight effect is effective in the range from each second marking to the fence via each first marking. Is preferable because it can be obtained.

Further, if the interval between the first marking bodies is set smaller than the spacing between the second marking bodies, the attraction of the first marking bodies is at the position where the fence body 1 and each marking body are connected. It is preferable because the property is enhanced and a high line-of-sight guidance effect can be obtained.

According to the installation structure of the marking body of the present invention, a high line-of-sight guidance effect can be obtained in combination with the fence body.

It is a front view which shows an example of a fence body. An embodiment of the installation structure of the marking body of the present invention is shown, (a) is a plan view and (b) is a front view. It is an enlarged view of a part of FIG. FIG. 3 is a cross-sectional view taken along the line AA of FIG. It is a figure which shows the front surface of the 1st sign body and the 2nd sign body of FIG. It is a front view which shows the outline of the marking material attached to the beam-shaped part of the fence body of FIG. It is a side view of FIG.

Embodiments of the invention will be specifically described with reference to the drawings.
In the drawing, 1 is a fence body.
The fence body 1 shown in FIG. 1 is a so-called wire fence used for separating lanes on a road, and is supported by a support column 2 erected on an installation surface G at intervals in the longitudinal direction and each support column 2. A beam-shaped portion 3 made of a wire extending in the longitudinal direction is provided.
The beam-shaped portions 3a to 3e, which are arranged five at intervals in the vertical direction, penetrate the inside of each support column 2 and extend in the longitudinal direction.
Further, as shown in FIG. 1, the right end portion of each beam-shaped portion 3 in the drawing is extended in an inclined shape from the support column 2 downward in the longitudinal direction to the fixed portion f provided on the installation surface G. It is connected and fixed.
In addition, the vertical direction of FIG. 1 perpendicular to the longitudinal direction in which the beam-shaped portion 3 is extended is defined as the vertical direction, and the direction perpendicular to the longitudinal direction and the vertical direction is defined as the width direction.

FIG. 2 shows an embodiment of the installation structure of the marking body 5 of the present invention, (a) is a plan view, and (b) is a front view.
FIG. 3 is an enlarged view of a part of FIG. 2, and FIG. 4 is a cross-sectional view taken along the line AA of FIG.
The fence body 1 shown in FIGS. 2 and 3 has a structure in which the fence reflecting portion 6 is provided on the outer periphery of the support column 2 and a structure in which the fence reflecting portion 43 is provided on the beam-shaped portion 3 as the fence body 1 shown in FIG. It's different.
The sign body 5 is erected on the outside in the longitudinal direction of the support column 2 arranged at the end of the fence body 1.
The marking body 5 includes a first marking body 5a and a second marking body 5b, and a plurality of the marking bodies 5 are installed at intervals in the longitudinal direction, and the vicinity of both sides in the width direction of each of the beam-shaped portions 3 arranged in an inclined manner. 10 first marking bodies 5a are installed in the building. Further, a plurality of second marking bodies 5b are arranged outside the first marking body 5a arranged at the end in the longitudinal direction and arranged side by side at intervals.
The distance between the second marking bodies 5b in the longitudinal direction is larger than the distance between the first marking bodies 5a in the longitudinal direction.

FIG. 5 is a view showing the front surface of the first sign body 5a and the second sign body 5b of FIG.
As shown in FIG. 5, the first marking body 5a and the second marking body 5b include a base portion 52 and a pillar portion 51 fixed and erected on the upper portion of the base portion 52.
The pillar portion 51 includes a cylindrical main body cylinder 51a, the opening portion on the lower end side is closed by the base portion 52, and the cap 51b is fixed so as to close the opening portion on the upper end side.
Further, a pillar reflecting portion 53 for reflecting light is provided on the outer surface of the main body cylinder 51a, and specifically, a reflective sheet having a retroreflective property of light that reflects the irradiated light toward the light source is provided. It is attached to form the pillar reflection portion 53. The pillar reflecting portion 53 is provided by winding a strip-shaped reflective sheet around the entire circumference of the pillar portion 51.
The pillar portion 51 is made of an elastic material so that the main body cylinder 51a and the cap 51b have the flexibility to elastically bend due to contact with a vehicle or the like and then restore to the original state. Specifically, the pillar portion 51 is made of a thermoplastic polyurethane resin.
The sign body 5 is designed as a road sign body to be installed and used on an installation surface G such as a road surface on which a vehicle travels, and the pillar portion 51 is provided so as to be elastically deformed as a whole. .. Further, the marking body 5 is bent and deformed to the extent that the side surface of the pillar portion 51 is brought into contact with the installation surface G by being stepped on by the vehicle, and then the marking body 5 is restored to the original standing state.

The second pillar reflecting portion 53a, which is the pillar reflecting portion 53 provided on the pillar portion 51 of the second marking body 5b, is formed of a white reflective sheet, and is formed of three at intervals in the vertical direction. ..

The size of the pillar portion 51 in the vertical direction of the first marking body 5a is formed to be larger than that of the second marking body 5a.
The pillar portion 51 of the first marking body 5a is formed with a second pillar reflecting portion 53a formed in the same color and shape at the same height position as the second pillar reflecting portion 53a of the second marking body 5b. .. Further, the first marking body 5a is provided with first pillar reflecting portions 53b and 53c provided at different height positions from the second pillar reflecting portion 53a. Specifically, the first pillar reflecting portion 53b is arranged above the second pillar reflecting portion 53a and is provided above the pillar portion 51, and two fluorescent yellow-green reflective sheets are arranged in the vertical direction. Is forming.
Further, the first pillar reflecting portion 53c is arranged below the second pillar reflecting portion 53a and is provided below the pillar portion 51, and is formed by attaching one blue reflective sheet.

Each of the first marking bodies 5a shown in FIGS. 2 to 4 is arranged in the vicinity of the beam-shaped portions 3a to 3e arranged in an inclined shape constituting the end portion of the fence body 1 in the width direction so as to be visually recognized by the vehicle driver. As a result, it is possible to suppress the contact of the vehicle with the end portion of the fence body 1.
In particular, in the fence body 1 shown in FIGS. 1 to 3, since the beam-shaped portions 3a to 3e are arranged at the ends in an inclined manner from the support column 2 to the fixing portion f of the installation surface G diagonally downward, the longitudinal direction When a vehicle traveling to the fence collides with the end of the fence body 1, the vehicle floats on the beam-shaped portion 3a, which may cause a very dangerous situation. By arranging each of the first marking bodies 5a in the vicinity of the beam-shaped portions 3a to 3e in the width direction, such an accident can be effectively suppressed.
Further, by arranging the second marking bodies 5b side by side on the outer side of each first marking body 5a in the longitudinal direction, the vehicle driver can visually recognize the second marking body 5b from the front side of the end portion of the fence body 1. Therefore, the collision of the vehicle with the fence body 1 can be suppressed more effectively.
The pillar portion 51 of each of the second marking bodies 5b is formed to have the same diameter as the pillar portion 51 of the first marking body 5a, but the pillar portion 51 is formed to have a diameter larger than that of the first marking body 5a. Visibility may be improved.

As shown in FIGS. 2 and 3, each fence reflecting portion 6 of the fence body 1 is provided under the support column 2 of the fence body 1, and a band of a blue reflective sheet having retroreflective light is provided on the support column 2. It is wound around the entire circumference of the outer circumference and attached.
Further, each of the fence reflecting portions 43 is provided on the fence body 1 by attaching a marking material 4 provided with the fence reflecting portion 43 to the beam-shaped portions 3a and 3b, respectively.

FIG. 6 is a front view showing an outline of the marking material 4 attached to the beam-shaped portion 3 of the fence body 1 of FIG. 2, and FIG. 7 is a side view of FIG.
The marking material 4 is a long body formed of an elastically deformable material such as resin or metal, and has the same cross section over the entire length in the longitudinal direction.
The marking material 4 is provided with a hollow cylindrical main body 41 having openings at both ends in the longitudinal direction at the upper portion. A notch 42 extending over the entire length in the longitudinal direction of the cylinder wall is formed in the lower part of the main body 41, and a flat plate-shaped droop extending downward from each end of the cylinder wall of the main body 41 facing the notch 42. Each part 44 is formed.
The fence reflecting portion 43 is formed of a fluorescent yellow-green reflective sheet having retroreflective light, and is attached to the outer surface of each hanging portion 44, respectively, over a substantially overall length of the marking material 4 in the longitudinal direction. Is provided

In the fence body 1 shown in FIGS. 2 and 3, four marking materials 4 are attached to each of the beam-shaped portions 3a and 3b.
The marking material 4 attached to the beam-shaped portion 3 has the beam-shaped portion 3 housed in the hollow portion of the tubular main body portion 41, and is between the hanging portions 44 in which the marking material 4 is elastically deformed and separated. Detachment is performed by passing through the beam-shaped portion 3.
The marking material 4 shown in FIGS. 2 and 3 is attached to the beam-shaped portion 3 extending between the columns 2, and is arranged so that the longitudinal direction of each fence reflecting portion 43 is along the installation surface G.

As shown in FIGS. 2 and 3, when the first marking body 5a is erected on the installation surface G, the first pillar reflecting portion 53b is provided so as to be arranged at a height position corresponding to the fence reflecting portion 43. ing.
By providing the first pillar reflecting portion 53b as described above, as shown in FIGS. 2 and 3, each first pillar reflecting portion 53b and each fence reflecting portion 43 formed in the same color are arranged in the longitudinal direction. Since they are arranged, the driver of the vehicle that visually recognizes them can integrally recognize the fence body 1 and each of the first marking bodies 5a that are not connected to the fence body 1 and obtain a high line-of-sight guidance effect.

Further, as shown in FIGS. 2 and 3, in a state where the first marking body 5a is erected on the installation surface G, the size in the vertical direction is formed to be a size corresponding to the fence reflecting portion 6 of the fence body 1. The first pillar reflecting portion 53c is provided so as to be arranged at a height position corresponding to the fence reflecting portion 6.
By providing the first pillar reflecting portion 53c as described above, each of the first pillar reflecting portions 53c and each fence reflecting portion 6 formed in the same color are arranged so as to be arranged in the longitudinal direction. Similar to the reflecting portion 53b, the driver of the vehicle that visually recognizes these can integrally recognize the fence body 1 and each of the first marking bodies 5a that are not connected to the fence body 1 to obtain a high line-of-sight guidance effect. ..

Further, as shown in FIG. 2, each first marking body 5a is erected on the outside in the longitudinal direction of the pillar 2 located at the end of the fence body 1, and each second marking body 5b is erected on the outside in the longitudinal direction. In the installed installation structure, the second pillar reflecting portion 53a having the same color and shape as the second pillar reflecting portion 53a provided on the first marking body 5a is placed at the same height position on the pillar portion 51 of the second marking body 5b. By forming the above, a spectator such as a vehicle driver who visually recognizes the first marking body 5a and the second marking body 5b can be integrally recognized to obtain a line-of-sight guidance effect.

The installation structure of the marking body 5 according to the present invention is not limited to the above embodiment, and various changes can be made without departing from the gist of the present invention.
For example, in the installation structure of the marking body 5 shown in FIGS. 2 to 4, the marking body 5 is arranged only on the outer side in the longitudinal direction of the support column 2 arranged at the end of the fence body 1, but the present invention is not limited to this. Instead, a part of the marking body 5 may be arranged in the vicinity of the width direction of the beam-shaped portion 3 and erected inside the support column 2 in the longitudinal direction.
Further, although each of the first marking bodies 5a is arranged on both sides of the beam-shaped portion 3 of the fence body 1 in the width direction, it may be arranged only on one side in the width direction.

Further, in the installation structure of the marking bodies 5 shown in FIGS. 2 to 4, the pillar portion 51 of each first marking body 5a arranged close to the fence body 1 and each second marking body arranged outside in the longitudinal direction thereof. The pillars 51 of 5b are formed so as to have different sizes in the vertical direction, but the size is not limited to this, and the pillars 51 may be provided at the same size.
Further, each of the first marking bodies 5a and each second marking body 5b forms each pillar portion 51 having the same thickness, but the present invention is not limited to this, and for example, each of the second marking bodies The outer diameter of the pillar portion 51 of 5b may be formed to be larger than that of the first marking body 5a to improve its visibility.
Further, it is not necessary to install the second marking body 5b which does not have the first pillar reflecting portion corresponding to the fence reflecting portion formed on the fence body 1.

Further, in the installation structure of the marking body 5 shown in FIGS. 2 and 3, a fence reflecting portion 43 is provided on the beam-shaped portion 3 of the fence body 1, and a fence reflecting portion 6 is provided on the pillar 2, and the first marking body 5a is provided. The first pillar reflecting portion 53b and the first pillar reflecting portion 53c are formed at height positions corresponding to the fence reflecting portion 43 and the fence reflecting portion 6, respectively, but the present invention is not limited to this. For example, the fence reflecting portion provided on the fence body 1 is formed on only one of the support column 2 and the beam-shaped portion 3, and only the first pillar reflecting portion corresponding to the fence reflecting portion is formed on the first marking body 5a. It may be provided as follows.

Further, in the installation structure of the marking bodies 5 shown in FIGS. 2 and 3, the first marking bodies 5a are arranged at a distance smaller than the spacing between the second marking bodies 5b, but each of the first marking bodies 5a The two markings may be arranged at a distance larger than the distance between the marking bodies 5b, or the same size of the distance may be provided.
However, as shown in FIG. 2, by providing the interval between the installation of each of the first marking bodies 5a to be smaller than that of the second marking body 5b, the attractiveness of the place where the first marking body 5a is installed is enhanced. The contact of the vehicle with the end of the fence body 1 can be effectively suppressed.
Further, as shown in FIG. 2, the fence body 1 is arranged by providing the installation intervals of the first marking bodies 5a and the second marking bodies 5b to be smaller than the intervals of the columns 2 of the fence body 1. The visibility of the edge of the is improved. In particular, by providing the installation interval of each of the first marking bodies 5a arranged near the fence body 1 to be smaller than the installation interval of each support column 2, it is possible to effectively suppress the contact of the vehicle with the end portion of the fence body 1. .. The distance between the support column 2 arranged at the end of the fence body 1 and the nearest first marking body 5a arranged outside the support column 2 in the longitudinal direction is set to be smaller than the distance between the support columns 2. However, it is preferable in that it enhances the line-of-sight guidance effect.

Further, the first pillar reflecting portion 53b of the first marking body 5a and the fence reflecting portion 43 of the fence body 1 shown in FIGS. 2 and 3 are formed to have exactly the same color, but if the color tones are similar, they are completely formed. Even if the colors are not the same, it is possible to obtain a line-of-sight guidance effect that combines both. This also applies to the first pillar reflecting portion 53c and the fence reflecting portion 6 of the first marking body 5a.
In addition, the above-mentioned similar color tone means that the first pillar reflecting portion 53b and the fence reflecting portion 43 arranged so as to be arranged in the longitudinal direction, and the first pillar reflecting portion 53c and the fence reflecting portion 6 are a vehicle driver or the like. It suffices to be similar to the extent that the same color can be recognized by the viewer. In particular, in the first marking body 5a, the second pillar reflecting portion 53a formed in white is formed together with the first pillar reflecting portion 53b formed in fluorescent yellow-green and the first pillar reflecting portion 53c formed in blue. There is. By forming the second pillar reflecting portion 53a provided in a color tone that is significantly different from each first pillar reflecting portion, the color tone of the first pillar reflecting portion 53b and the fence reflecting portion 43 and the color tone of the first pillar reflecting portion 53c and the fence reflection are formed. Even if the color tone of the part 6 is not exactly the same color but slightly different, it is easily recognized as the same color by the viewer.

Further, in the installation structure of the marking body 5 shown in FIGS. 2 and 3, the first pillar reflecting portions 53b and 53c and the second pillar reflecting each are reflected by the reflective tape wound and attached around the entire circumference of the pillar portion 51. The first marking body 5a forming the portion 53a is arranged and erected on both sides of the beam-shaped portion 3 in the width direction, but the present invention is not limited to this. For example, when the fence body 1 is installed as a lane separation fence that separates the traveling lane and the oncoming lane, the first is not the entire circumference of the outer peripheral surface of the pillar 51, but only within the range visible to the vehicle traveling in the traveling lane. One-column reflecting portions 53b and 53c and second-column reflecting portions 53a may be formed. By providing in this way, it is difficult for a vehicle traveling in the traveling lane to see each pillar reflecting portion of the first marking body 5a erected on the oncoming lane side, so that a viewer such as a vehicle driver can see these. It is possible to suppress a decrease in the line-of-sight guidance effect due to misidentification of the light reflected by the pillar reflection portion as an obstacle. Further, when each pillar reflecting portion is formed as described above, the outer shape of the pillar portion 51 is formed into a polygonal pillar shape or a flat shape instead of a cylindrical shape so that the pillar portion can be visually recognized from a vehicle traveling in the traveling lane. The outer peripheral portion of 51 may be provided to be larger.

Further, in the installation structure of the marking body 5 shown in FIGS. 2 and 3, the first pillar reflecting portion 53b of each of the first marking bodies 5a corresponding to each fence reflecting portion 43 of the fence body 1 is formed by the beam-shaped portion 3a. It is formed by two reflective tapes arranged in the vertical direction corresponding to each fence reflecting portion 43 provided in 3b, but is not limited to this, and is formed at a height position corresponding to the fence reflecting portion 43. It may be in another form that can be used. For example, to cover the outer peripheral surface of the pillar portion 51 in the range from the height position of the upper end of the fence reflecting portion 43 attached to the beam-shaped portion 3a to the height position of the lower end of the fence reflecting portion 43 attached to the beam-shaped portion 3b. One reflective tape may be attached to the first column reflective portion 53b, and three or more reflective tapes may be attached so as to cover the outer peripheral surface of the column portion 51 in the above range. The one-column reflecting portion 53b may be formed.
The same applies to the first pillar reflecting portion 53c corresponding to the fence reflecting portion 6 of the fence body 1, and the two first pillar reflecting portions 53c formed by sticking one reflective tape are attached. By attaching the above reflective tape, it may be formed at a height position corresponding to the fence reflective portion 6.

Further, the fence body 1 shown in FIGS. 2 and 3 is provided with a marking material 4 forming a fence reflecting portion 43 on the beam-shaped portion 3 attached to the beam-shaped portion 3a and the beam-shaped portion 3b, but the present invention is limited to this. The fence reflecting portion 43 may be formed by selecting or combining all the beam-shaped portions including the beam-shaped portions 3c to 3e.
Further, in the installation structure of the marking body 5, the marking material 4 is attached to each of the beam-shaped portions 3 arranged in the vertical direction, but the present invention is not limited to this, and a plurality of beam-shaped portions arranged in the vertical direction are not limited to this. A fence reflecting portion may be formed in the beam-shaped portion 3 by using a marking material provided so as to be attached across the beam 3.

Further, the fence body 1 shown in FIGS. 2 and 3 is provided with a fence reflecting portion 43 formed on the beam-shaped portion 3 by a method of attaching a marking material 4 provided with the fence reflecting portion 43, but the present invention is not limited to this. The fence reflecting portion 43 may be formed on the beam-shaped portion 3 by other methods such as applying a paint that reflects light satisfactorily or attaching a reflective tape.
Further, regarding the fence reflecting portion 6 provided on the support column 2, reflection such as attachment of a cover-shaped marking material, attachment of a marking material for arranging a reflective member above the upper end of the support column 2 or on the side surface of the side surface, application of paint, etc. It may be formed on the support column 2 by a method other than sticking the tape.

1 Fence body 2 Strut 3 Beam-shaped part 4 Marking material 41 Main body 42 Notch 43 Fence reflecting part 44 Hanging part 5 Marking body 51 Pillar part 52 Base part 53 Pillar reflecting part 6 Fence reflecting part f Fixed part G Installation surface

Claims (4)

It is an installation structure of a support column erected on the installation surface and a sign body that suppresses vehicle contact with a fence body having a beam-shaped portion extending in the longitudinal direction from the support column.
A plurality of the marking bodies provided with pillars are erected at intervals along the longitudinal direction of the fence body.
The fence body is provided with a fence reflecting portion that reflects light at least on either a support column or a beam-shaped portion.
A structure for installing a sign body, characterized in that a pillar reflecting portion for reflecting light is formed at a height position corresponding to the fence reflecting portion on the pillar portion of each of the marking bodies. The marking body is arranged near the support column at the longitudinal end of the fence body, and each marking body is erected at a space smaller than the distance between the support columns of the fence body. The installation structure of the marking body according to claim 1. The marking body has a first pillar reflecting portion formed at a height position corresponding to the fence reflecting portion and a second pillar reflecting portion formed at a height position different from the first pillar reflecting portion. A first marking body and a second marking body having only the second pillar reflecting portion are provided.
A plurality of the first marking bodies are arranged near the columns at the longitudinal end of the fence body and are arranged side by side, and a plurality of the second marking bodies are arranged outside the first marking body in the longitudinal direction and arranged side by side. The installation structure of the marking body according to claim 1 or 2, wherein the marking body is provided. The installation structure of the marking body according to claim 3, wherein the distance between the first marking bodies is smaller than the distance between the second marking bodies.

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