JP2017206849A - Attention arousing pavement structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attention arousing pavement structure for arousing an attention to an operator on a specific event such as backward travel.SOLUTION: An attention arousing pavement structure comprises a plurality of grooves 10, 10, etc. of extending in the direction for crossing in the travel direction with a road surface and a sign part 15 formed on one wall surface 12 of the plurality of grooves 10, 10, etc., and is constituted so as to become a character or a pattern by combining the plurality of sign parts 15, 15, etc. A second sign part (unillustrated) is formed on the other wall surface 13 opposed to the one wall surface 12, and is constituted so as to become a character or a pattern different from the character or the pattern by combining the plurality of second sign parts. The sign part 15 is formed on the wall surface 12 opposed to the backward travel direction 14, and a character or a pattern for arousing an attention for backward travel is formed by combining the plurality of sign parts 15, 15, etc.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an alert pavement structure.

  As paving to alert the driver that the vehicle deviates from the road or the traveling speed has exceeded, multiple rows of grooves extending in the direction intersecting the traveling direction are formed on the surface of the paved road, There has been a vehicle that generates vibration sound to alert the driver by running (see, for example, Patent Document 1). In this pavement, the height and strength of the vibration sound were changed by changing the width and interval of the groove, and the effect of calling attention was further enhanced.

  In addition, a plurality of marking material pieces are arranged on the road surface with a predetermined interval, and the impact when the vehicle tires ride on the marking material piece and the tires riding on the marking material pieces descend to the road surface and come in contact with the road surface. In some cases, a continuous impact is given to the vehicle by the impact at the time, and the driver is alerted (see, for example, Patent Document 2).

JP 2010-248794 A JP 2009-270316 A

  By the way, in recent years, accidents due to reverse running of vehicles have occurred on highways and automobile roads. However, with conventional alerting pavements, it is possible to alert a vehicle to deviate from the road or to overspeed, but it was not possible to alert for events other than road departure or overspeed, such as reverse running. .

  Therefore, the present invention has been made in view of these problems, and an object thereof is to provide an alert pavement structure that can alert a driver about a specific event such as reverse running.

  A first invention according to the present invention for solving the above problems includes a plurality of grooves extending in a direction intersecting the road surface on the road surface, and a marking portion formed on one wall surface of the plurality of grooves. The alerting pavement structure is characterized in that a plurality of the marking portions are combined to form a character or a pattern.

  According to such a configuration, since the driver of the vehicle traveling in a specific direction can visually check the characters and patterns marked on the road surface, it is possible to alert a specific event. In addition, because the character and pattern can be changed depending on the direction of the road, for example, the reverse run direction is alerted to “reverse run”, and the forward direction is alerted to “deceleration” other than reverse run. be able to. Moreover, since alerts are made with letters and patterns, it is possible to clearly tell the driver what to be aware of. Furthermore, after visually observing the characters and patterns, it can be alerted by vibration and sound because it travels on the groove.

  In the alert pavement structure having the above configuration, a second marking portion is formed on the other wall surface facing the one wall surface, and a plurality of second marking portions are combined to form a character different from the character or the pattern or What is comprised so that it may become a pattern is preferable. According to such a configuration, it is possible to perform alerting of different contents depending on the traveling direction, guidance signs, and the like.

  In the alert pavement structure having the above configuration, the marking portion is formed on a wall surface facing in the reverse running direction, and a plurality of the marking portions are combined to form a character or pattern that alerts reverse running. Is preferred. According to such a configuration, it is possible to clearly alert the driver who is traveling backward that the vehicle is traveling backward.

  In the alert pavement structure having the above-described configuration, the plurality of grooves constitute a visual alert area where the marking portion is formed and an auditory alert area formed in front of the visually alert area. Is preferred. According to such a configuration, the characters and patterns marked on the road surface appear after the driver's attention is directed to the road in the auditory caution area, so that the characters and patterns are easily visible.

  A second invention according to the present invention for solving the above-described problem includes a plurality of grooves extending in a direction intersecting the traveling direction on the road surface, and a projection device, and the projection device includes a plurality of grooves. The alert pavement structure is characterized in that an image is projected onto one wall surface of the groove to display a character or a pattern.

  According to such a configuration, since the driver can visually observe the characters and patterns marked on the road surface, it is possible to alert a specific event. In addition, because the character and pattern can be changed depending on the direction of the road, for example, the reverse run direction is alerted to “reverse run”, and the forward direction is alerted to “deceleration” other than reverse run. be able to. Furthermore, since the image projected by the projection device can be changed, the content and color of the sign can be changed according to the external brightness and time. Moreover, if a character or a pattern is blinked or discolored with a projection apparatus, a strong alert can be drawn.

  In the alert pavement structure having the above-described configuration, it is preferable that the projection device is configured to detect reverse running and project a character or a pattern that alerts reverse running. According to such a configuration, it is not necessary to operate the projection device in normal times, so that energy saving can be achieved.

  According to the present invention, it is possible to alert the driver about a specific event such as reverse running.

It is the partial cross section perspective view which showed the alerting pavement structure which concerns on embodiment of this invention. It is the expansion partial cross-section perspective view which showed the alerting pavement structure which concerns on embodiment of this invention. It is the projection figure which showed the state which looked at the character marked on the road surface from the driver | operator. (A) is the whole top view which showed the alerting pavement structure which concerns on embodiment of this invention, (b) is the partial top view which showed the character seen from the vehicle which drive | works in a forward direction. It is the projection figure which showed the alerting pavement structure which concerns on 2nd embodiment of this invention. It is the partial cross section perspective view which showed the modification of the groove | channel formed in the road surface. It is the partial cross section perspective view which showed the further modification of the groove | channel formed in the road surface.

  The alerting pavement structure according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the present embodiment, a case where characters for preventing reverse running are marked will be described as an example. As shown in FIGS. 1 and 2, the alert pavement structure 1 has a plurality of grooves 10 formed on the surface (road surface) of the asphalt layer 3 laid on the roadbed 2. In consideration of durability, the surface of the asphalt layer 3 is preferably constituted by an overlay such as a modified asphalt mixture.

  The grooves 10 extend in a direction that intersects (is orthogonal to the present embodiment) in the traveling direction, and are arranged in parallel at a predetermined interval along the traveling direction. The groove 10 is formed by a grooving method. In the grooving method, the grooves 10 are formed on the paved road surface using a diamond cutter construction machine. The width and arrangement interval of the grooves 10 are appropriately determined according to the speed limit of the road to be formed and the thickness of the asphalt layer. The width of the groove 10 is, for example, 10 to 20 mm, the arrangement interval is, for example, 50 mm, and the depth is, for example, 10 mm. The cross section of the groove 10 has a rectangular shape with an open top, and the groove 10 includes a bottom surface 11 and wall surfaces 12 and 13 on both sides. One wall surface 12 is a surface opposite to the reverse running direction (the direction indicated by the arrow 14 in FIGS. 1 and 2), that is, the wall surface visible to the driver during reverse running. The other wall surface 13 is a surface facing in the forward direction, that is, a wall surface that is visible to the driver during forward travel.

  In the present embodiment, the wall surface 12 is painted to form the marking portion 15. As the paint, livestock paint, reflective paint, fluorescent paint or the like is used, and visibility in the evening or night is enhanced. A plurality of marking portions 15 are combined to form a character. Specifically, the marking part 15 which forms a character includes a plain part 16a and a coloring part 16b (see FIG. 2). The colored portion 16b is colored with one color, and a plurality of colored portions 16b form characters. As shown in FIG. 3, “reverse run”, “removed” and the like are marked as characters for preventing reverse run. In addition, when forming a pattern instead of a character, substantially the whole marking part is comprised in the coloring part. The colored portion is colored with a plurality of colors, and signs such as entry prohibition and traffic closure are illustrated. The pattern is not limited to the sign, and may be a symbol such as an exclamation mark or a picture.

  In the present embodiment, the wall surface 13 facing the wall surface 12 is also painted, and a second marking portion (not shown) is formed. As shown in FIG. 4B, the characters formed at the second marking portion of the wall surface 13 are visible to the driver traveling in the forward direction. And “Caution” are displayed. According to such a configuration, different characters or patterns can be marked depending on the viewing direction even on the same road surface.

  FIG. 4 shows an intersection of the exit road 5 and the general road 6 of the expressway or automobile road. The exit road 5 has two lanes on one side and the left direction is the forward direction. The general road 6 is a one-sided lane facing road. In FIG. 4A, characters seen from a vehicle traveling in the reverse direction are illustrated. FIG. 4B shows the exit road 5 and shows characters that can be seen from a vehicle traveling in the forward direction.

  The plurality of grooves 10 also constitute an auditory alert area 22 in addition to the visual alert area 21 where the marking portion 15 is formed. The auditory attention arousing area 22 is composed of only a plurality of grooves 10 without marking characters or patterns. The auditory caution area 22 is formed in front of the visual caution area 21. On the exit road 5, an auditory attention calling area 22a in front of the reverse running direction (left side in FIG. 4) and an auditory attention calling area 22b in the forward direction (right side in FIG. 4) are formed. In the auditory caution area 22, the tire 7 of the vehicle travels on the groove 10, so that sound and vibration are generated, and the driver's consciousness is directed to the road surface. In such an exit road 5, if a vehicle enters in the reverse direction, the driver turns his eyes to the road surface by the auditory warning area 22a in front (left side in the figure) Look for the words "run" or "to rare". As a result, the driver notices that the vehicle is running in reverse and stops the vehicle. On the other hand, the driver of the vehicle traveling in the forward direction turns the line of sight toward the road surface by the auditory caution area 22b in front (right side in the figure), and displays the characters "Deceleration" or "Caution" Visually check. As a result, the driver notices that the intersection with the general road 6 is near and decelerates the vehicle.

  On the general road 6, characters and patterns are marked so that the vehicle does not enter the exit road 5 by mistake. A plurality of grooves 10, 10,... Are formed at the intersection of the general road 6 with the exit road 5, and the characters “high speed” and an arrow indicating that the vehicle turns forward are marked. An auditory caution area 22 is formed in front of the visual caution area 21 where characters and patterns are formed (lower side in FIG. 4). As shown in FIG. 4, the auditory caution area 22 may be formed with a gap from the visual caution area 21. The driver of the vehicle that has traveled on the general road 6 turns his gaze toward the road surface by the auditory caution area 22 in front (lower side in the figure), and visually observes the characters “high speed” and the arrow that are marked ahead. This allows the driver to recognize that the highway entrance is ahead. Therefore, it is possible to prevent accidental entry into the exit road 5 beforehand.

  As described above, according to the alerting pavement structure 1 according to the present embodiment, the driver can visually recognize the characters and patterns marked on the road surface, and therefore can grasp the contents to be alerted. Therefore, it is possible to clearly alert the driver about a specific event.

  In addition, because the character and pattern can be changed depending on the direction of the road, for example, the reverse run direction is alerted to “reverse run”, and the forward direction is alerted to “deceleration” other than reverse run. be able to. Furthermore, since the vehicle travels on the groove 10 after visually observing the characters and patterns, it is possible to call attention by vibration and sound. That is, in the above-mentioned alerting pavement structure, since it appeals directly to each of vision, sense, and hearing, a high alerting effect can be expected.

  Furthermore, in this embodiment, since the auditory caution area 22 is formed in front of the visual attention area 21 in the traveling direction, the visual caution area after the driver's attention is directed to the road in the auditory caution area 22. The characters and patterns marked on 21 can be seen.

  Next, the alert pavement structure according to the second embodiment will be described with reference to FIG. In the embodiment, characters and patterns are marked by painting the wall surfaces 12 and 13, but in the second embodiment, characters or patterns are marked using the projection device 30 as shown in FIG. doing. The projection device 30 can display an image including characters and patterns on the road surface, and is disposed obliquely behind or above the road. The projection part of the projection device 30 is arranged toward the wall surface 12 of the groove 10.

  The projection device 30 is provided with a sensor (not shown) that detects passage of the vehicle. The sensor is installed at the end of the exit road, and transmits a reverse detection signal to the projection device 30 when detecting a reverse vehicle. The projection device 30 receives the reverse running detection signal and projects an image including the characters “reverse running” and “unusual” on the road surface. The projected image is mainly projected on the wall surface 12 of the groove 10. Then, the driver visually recognizes the characters “reverse run” and “threshold” and notices that the run is reverse.

  As described above, even in the alert pavement structure according to the second embodiment, the driver can visually recognize the characters and patterns projected on the road surface, so that the contents to be alerted can be grasped. Therefore, it is possible to clearly alert the driver about a specific event. In particular, in the second embodiment, since an image is projected onto the wall surface 12, the image can be projected at right angles to the driver's line of sight. Therefore, it is possible to display a character or pattern that has a clear outline and is easily visible. Also in the second embodiment, a high alerting effect can be expected because it directly appeals to the senses of vision, sensation, and hearing.

  Further, if a plurality of projection devices 30 are provided and the image is projected in both the backward direction and the forward direction, the “reverse direction” is alerted in the backward direction, and “ It is possible to call attention to “deceleration”.

  Furthermore, in the second embodiment, since the image projected by the projection device 30 can be easily changed, the content to call attention can be changed. In addition, by connecting a sensor to the projection device 30 and operating the projection device 30 when the vehicle travel is detected, it is not necessary to operate the projection device 30 when the vehicle does not pass. Therefore, energy saving of the projection device 30 can be achieved.

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not the meaning limited to the said embodiment, A design change is possible suitably in the range which does not deviate from the meaning of this invention. For example, in the said embodiment, although the groove | channel 10 is orthogonally crossed with respect to the running direction, it is not limited to this. Depending on the curve of the road, the groove may be formed inclined with respect to the orthogonal direction.

  Moreover, in this embodiment, although the elongate groove | channel 10 is formed by the grooving method, it is not limited to this. A plurality of rows of short grooves 10a as shown in FIG. 6 may be formed by running an embossing roller having protrusions formed on the outer peripheral surface. A plurality of short grooves 10a are arranged in a direction orthogonal to the traveling direction, and form a long groove with a gap therebetween. Also in this case, the marking portion 15a is formed on the wall surface 12a facing the reverse running direction. The marking part 15a in the case of marking a character includes a plain part 16c and a coloring part 16d. When the pattern is displayed, the marking portion is configured by a colored portion of the entire marking portion, and the colored portion is colored with a plurality of colors.

  Furthermore, as another modified example, the grooves 10b may be formed by installing a plurality of blocks 17 on the road surface, as shown in FIG. 7, instead of forming the recesses on the road surface. The block 17 is fixed to the road surface by anchor bolts. Specifically, the block 17 having a rectangular cross section is installed on the road surface at intervals in the front, rear, left, and right (traveling direction and the direction orthogonal thereto) to form a groove 10b between the blocks 17 and 17. The blocks 17 and 17 adjacent to each other in the orthogonal direction may be continuously arranged without a gap. A groove 10b extending in the orthogonal method is formed between the blocks 17 and 17 adjacent to each other in the traveling direction. A marking portion 15b is formed on the wall surface 12b facing the running direction. The marking portion 15b for marking characters includes a plain portion 16e and a coloring portion 16f. When the pattern is displayed, the marking portion is configured by a colored portion of the entire marking portion, and the colored portion is colored with a plurality of colors.

  Moreover, in the said embodiment, although the marking part 15 and the 2nd marking part are color-coded and formed by coating, it is not limited to this. For example, a marking sheet may be formed by attaching a colored sheet or a reflecting plate to the colored portion.

  Furthermore, in the said embodiment, the warning of reverse running and the warning of overspeed at the time of a forward run are performed, but it is not limited to this. For example, you may be alerted about other events, such as a jumping out warning or a pause.

DESCRIPTION OF SYMBOLS 1 Attention pavement structure 10 Groove 10a Groove 10b Groove 12 Wall surface 13 Wall surface 14 Arrow which shows reverse running direction 15 Marking part 15a Marking part 15b Marking part 21 Visual alert area 22 Auditory alert area 22a Auditory alert area 22b Auditory alert Area 30 projector

Claims (6)

A plurality of grooves extending in a direction intersecting the traveling direction on the road surface, and a marking portion formed on one wall surface of the plurality of grooves,
A warning pavement structure, wherein a plurality of the marking parts are combined to form a character or a pattern. A second marking portion is formed on the other wall surface facing the one wall surface,
The alerting pavement structure according to claim 1, wherein a plurality of second marking parts are combined to form a character or pattern different from the character or the pattern. The marking part is formed on a wall surface facing the reverse running direction,
The alerting pavement structure according to claim 1 or 2, wherein a plurality of the marking parts are combined to form a character or pattern that alerts reverse running. The plurality of grooves constitute a visual alert area in which the marking portion is formed and an auditory alert area formed in front of the visual alert area. Item 4. The alert pavement structure according to any one of item 3. A plurality of grooves extending in a direction intersecting the traveling direction on the road surface, and a projection device,
The projecting device projects an image on one wall surface of the plurality of grooves to indicate a character or a pattern. The alerting pavement structure according to claim 5, wherein the projection device is configured to detect reverse running and project a character or a pattern that alerts reverse running.

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