JP2001200511A - Road environment improving apparatus, road structure, and road environment improving method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a road structure which can protect a living environment in an area on the periphery of a road from local damage due to noise and exhaust gas, by insulating noise generated from automobiles traveling the road and upward dispersing exhaust gas. SOLUTION: The road structure is constituted of a road (1), a wind tunnel (2) set on the road (1) and having openings (20, 21) at both ends thereof, and an exhaust gas guide (3) arranged on a wind tunnel (2) front side corresponding to a traveling direction of automobiles, at a location being spaced a predetermined distance away from the wind tunnel(2). The exhaust gas guide (3) includes a guide portion (30) upward slanting in the traveling direction of automobiles, and a passage port (31) for passing the automobiles. A wall of the wind tunnel (2) has not air permeability imparted thereto. Further, a blowing fan (4), a sound absorbing material (5), an air purifier (6), and a heater (7) are arranged in the wind tunnel (2).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road environment improvement device for reducing noise and exhaust gas in the area around a road,
The present invention relates to a road structure and a road environment maintenance method.
More specifically, by absorbing or insulating noise emitted from a car traveling on a road and diffusing exhaust gas upward, the living environment in the surrounding area of the road is locally damaged by the noise and exhaust gas. It relates to things that can be prevented.

[0002]

2. Description of the Related Art The improvement of roads such as highways, which are stretched vertically and horizontally, has become more convenient for users, but for residents residing in areas around the roads, the living environment has been destroyed. It is connected and is a serious problem. The causes of the destruction of the living environment due to roads are noise and exhaust gas emitted from a running car. These will have significant mental and physical consequences for the people in the area around the road. As a countermeasure against such problems, it has been practiced to provide a sound insulation wall on a road to reduce the living environment of residents in the surrounding area.

[0003]

However, the above-mentioned conventional method using a sound insulating wall has the following problems. That is, it is known that the maintenance of the sound insulation wall has a certain effect on noise, but a sufficient effect on exhaust gas has not been obtained. In other words, even if exhaust gas does not leak directly to a specific area such as a sound insulation wall, the exhaust gas stagnates around the road and locally contaminates the surrounding area. It cannot be a solution.

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems. The present invention absorbs or shields noise generated from an automobile running on a road, and diffuses exhaust gas upward, so that the surrounding area of the road is diffused. It is an object of the present invention to provide a road environment maintenance device, a road structure, and a road environment maintenance method that can prevent a living environment of a vehicle from being locally damaged by noise and exhaust gas.

[0005]

Means of the present invention taken to achieve the above object are as follows. In the first invention, a wind tunnel body that is installed on a road and has openings at both ends, and an exhaust derivative that is provided at a predetermined distance on the front side of the wind tunnel body in the vehicle traveling direction, A road environment maintenance device, characterized in that the exhaust derivative includes a guide portion inclined upward in the traveling direction of the vehicle and a passage portion through which the vehicle passes.

According to a second aspect of the present invention, there is provided the road environment maintenance device according to the first aspect, wherein a ceiling on an opening side of the wind tunnel body is inclined upward and outward.

In the third invention, the wall of the wind tunnel body is
A road environment maintenance device according to the first or second invention, characterized in that the device does not have air permeability.

According to a fourth aspect of the present invention, the first, second or third sound absorbing means is provided in the wind tunnel body.
It is a road environment maintenance apparatus according to the invention of the present invention.

According to a fifth aspect of the present invention, the exhaust gas absorbing means is provided in the wind tunnel body.
A road environment maintenance device according to a third or fourth invention.

According to a sixth aspect of the present invention, there is provided a road environment maintenance device according to the first, second, third, fourth or fifth aspect, wherein the wind tunnel body is provided with a daylighting means. is there.

According to a seventh aspect of the present invention, there is provided the first, second, third, fourth, fifth or fifth heating means for heating the traveling wind in the wind tunnel body. A road environment maintenance device according to a sixth aspect of the present invention.

According to an eighth aspect of the present invention, the first, second, third, fourth, fifth, and fifth air blowers are provided in the wind tunnel body to accelerate or decelerate the traveling wind. 6th or 7th
It is a road environment maintenance apparatus according to the invention of the present invention.

According to a ninth aspect of the present invention, the exhaust guide is provided with means for shielding or weakening the wind from the back side of the guiding portion. A road environment maintenance device according to the fifth, sixth, seventh, or eighth invention.

In the tenth aspect, the exhaust derivative is:
It is characterized in that a plurality is provided for one wind tunnel body,
A road environment improvement device according to the first, second, third, fourth, fifth, sixth, seventh, eighth, or ninth invention.

According to an eleventh aspect of the present invention, the wind tunnel body is a tunnel, and the first, second, third, fourth,
A road environment improvement device according to a fifth, sixth, seventh, eighth, ninth, or tenth aspect of the present invention.

According to a twelfth invention, a road environment according to the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, or eleventh invention is provided. A road structure, wherein a maintenance device is installed on a road.

According to a thirteenth aspect, a wind tunnel body is provided on a road and has openings at both ends, and the ceiling of the wind tunnel body on the opening side is inclined upward to the outside. It is a road environment maintenance apparatus characterized by the above-mentioned.

According to the fourteenth aspect, a wind tunnel body or a tunnel is provided on the road, and exhaust gas discharged together with the traveling wind generated by the traveling of the vehicle from the opening of the wind tunnel body or the tunnel on the front side in the traveling direction of the vehicle. A road environment maintenance method characterized by being guided upward.

The term "wind tunnel body" as used in the present invention includes a concept of "having a structure which continuously covers side and top portions along a road to be installed and has openings at both ends in the direction of the road". is there. The cross-sectional shape (excluding the road surface) of the wind tunnel body is, for example, inverted U
The shape is a V-shape, an inverted V-shape, a semicircle shape, a U-shape, etc. Note that the wind tunnel body can also be formed by suspending a ceiling wall between sound insulation walls provided on the road side.

[0020] The structure of the guide portion of the exhaust derivative may be a flat surface as long as traveling wind including exhaust gas can be guided upward.
It may be a curved surface. Further, a structure combining a plurality of flat surfaces or curved surfaces may be used. It is desirable that the surface of the guiding section has a high smoothness in order to increase the guiding efficiency. However, the surface is slightly roughened by applying an adsorbent or the like so that the exhaust gas can be absorbed, and the surface is periodically washed away. Maintenance can be performed.

Materials forming the wind tunnel body and the exhaust derivative include, for example, plastic, metal, wood, cloth, etc., but are not limited thereto. In addition, for example, a metal frame with a plastic tent, a plastic film, or a cloth tent stretched over the metal frame may be used in combination.

As the sound absorbing means, for example, use of a sound absorbing material for absorbing sound vibration, vibration insulation (elastic support), damping (vibration damping, vibration suppression), active noise control (having the same amplitude as the target noise, and having the same phase) A method of emitting a sound wave deviated by 180 ° as a canceling sound) and the like, but is not limited thereto.

The exhaust gas absorbing means is, for example, a method using various catalysts such as a photocatalyst, but is not limited thereto.

The daylighting means is, for example, a method of forming the whole or a part of the wind tunnel body with a light-transmitting material such as transparent plastic, but is not limited thereto.

Examples of the heating means include, but are not limited to, an electric heater, a heater for burning petroleum fuel, and a heater using solar heat or sunlight.

(Operation) The road environment maintenance device and the road structure according to the present invention are arranged at a predetermined distance from the wind tunnel body installed on the road and the front side (exit side) of the wind tunnel body in the traveling direction of the vehicle. Since the exhaust derivative includes a guide portion inclined upward in the traveling direction of the vehicle and a passage opening through which the vehicle passes, the exhaust derivative operates as follows.

When the car runs and enters the inside of the wind tunnel body,
The vehicle acts like a piston to compress the air on the front side of the vehicle, and an air flow (running wind) occurs in the wind tunnel body in the same direction as the vehicle travels. Automobiles generate noise inside the wind tunnel body and emit exhaust gas. Since the noise is blocked by the wall of the wind tunnel body, most of the noise does not leak to the outside except for those leaking from the front and rear openings. In addition, the exhaust gas contains waste heat, and heats the traveling wind together with heat radiation from the engine. The heated traveling wind including the exhaust gas is discharged at a predetermined speed to the outside from the opening in the wind tunnel body on the front side in the traveling direction of the vehicle.

The exhausted traveling wind has a buoyancy because it is heated, and is further reflected and guided upward by a guide portion of an exhaust derivative provided in front of the wind tunnel body, and is diffused in the sky. In addition, the automobile travels through the exhaust gas passage. In this way, the noise generated by the automobiles running on the road is absorbed or blocked by the wind tunnel body, and the exhaust gas is diffused upward by the exhaust gas, so that the living environment around the road is localized by the noise and exhaust gas. Can be prevented from being impaired.

In the case where the ceiling on the opening side of the wind tunnel body is inclined upward to the outside, high-temperature exhaust gas discharged from the vehicle into the wind tunnel body is guided by the buoyancy at the ceiling, and the opening is formed. It is discharged smoothly from the top. As a result, ventilation in the wind tunnel body is efficiently performed, so that, for example, even when the amount of traffic of the car is small and traveling wind is difficult to occur, exhaust gas is hardly trapped in the wind tunnel body, and it is possible to reduce contamination of the wind tunnel body with exhaust gas. At the same time, it is possible to prevent the passenger from becoming suffocated by the exhaust gas while the vehicle is running.

If the wall of the wind tunnel body does not have air permeability, the compressed air does not leak from the wall to the outside as the vehicle travels, which is convenient for generating the running wind and sufficient. A running wind with a high flow velocity is generated. Thereby, the speed at which the traveling wind is reflected by the guide portion of the exhaust derivative and guided upward is secured, and the exhaust gas diffuses further in the sky, so that the diffusion efficiency is improved.

In the case where the sound absorbing means is provided in the wind tunnel body,
Since the noise leaking to the outside is reduced, it is particularly useful for road construction in densely populated houses and the like.

When the exhaust gas absorbing means is provided in the wind tunnel body, the amount of exhaust gas discharged to the outside is reduced, so that it is particularly useful for road construction in densely populated houses or the like.

In the case where the wind tunnel body is provided with daylighting means,
Since the inside of the wind tunnel body can be brightened, it is possible to reduce the number of lighting fixtures such as fluorescent lamps, and the construction cost can be reduced.

When the wind tunnel body is provided with a heating means for heating the traveling wind, buoyancy can be further imparted to the traveling wind, so that the exhaust gas can be more efficiently diffused over the air. .

In the wind tunnel provided with a blowing means for accelerating or decelerating the traveling wind, the velocity of the traveling wind is adjusted according to the velocity of the traveling wind which varies depending on the difference in the speed and traveling density of the traveling automobile. By adjusting the flow velocity to a high value, the diffusion efficiency of the exhaust gas can be maintained.

If the exhaust guide is provided with means for blocking or weakening the wind from the rear side of the guide, the wind in the direction opposite to the traveling wind including the exhaust guided upward in the guide of the exhaust guide is blown. Even if it is, the wind can be shielded or weakened. Thereby, it is possible to reduce that the upward guidance of the traveling wind is disturbed by the wind in the opposite direction.

In the case where a plurality of exhaust guides are provided for one wind tunnel body, a part of the traveling wind leaking from the passage of the first exhaust guide is reflected upward by the guide portion of the next exhaust guide. Since the air can be guided, the diffusion efficiency of the exhaust gas can be further improved.

When the wind tunnel is a tunnel, it is possible to prevent the living environment around the tunnel from being locally damaged by noise or exhaust gas.
In addition, since the construction using the existing tunnel is possible, it is possible to relatively easily cope with a case where the number of houses increases around the tunnel after construction.

In the road environment improving method according to the present invention, a wind tunnel body is provided on a road, and the exhaust gas discharged along with the traveling wind generated by the traveling of the vehicle is guided upward from an opening of the wind tunnel body on the front side in the traveling direction of the vehicle. The wind tunnel body absorbs or insulates noise generated by vehicles traveling on the road, and at the same time diffuses exhaust gas upwards, so that the living environment in the surrounding area of the road is affected by the noise and exhaust gas. It can be prevented from being damaged on the ground.

[0040]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. FIG. 1 is a front view showing a first embodiment of the road environment maintenance device according to the present invention, FIG. 2 is a plan view of the road environment maintenance device shown in FIG. 1, and FIG. It is.

Reference numeral S1 denotes a road environment maintenance device, which is a predetermined distance between a tunnel-shaped (substantially C-shaped) wind tunnel body 2 installed so as to cover the road 1 and a front side of the wind tunnel body 2 in the vehicle traveling direction. It has the exhaust derivative 3 installed at the position. A road structure is constituted by the road environment maintenance device S1 and the road 1. Similarly, road environment maintenance devices S2 to S5 to be described later constitute a road structure in combination with the road 1.
The road 1 on which the wind tunnel body 2 is installed is a one-way road. On a road facing the traveling path, the wind tunnel body 2 is installed for each traveling path. The wind tunnel body 2 is formed of a plastic that has translucency and does not have air permeability and water permeability, and has sufficient strength to withstand a strong wind such as a typhoon.
The length between the openings 20 and 21 in front and behind the wind tunnel body 2 is desirably about several hundred meters in order to obtain a traveling wind at a sufficient speed. However, the length is not limited to this. It is set appropriately according to the difference in the range of the area where road environment improvement is required.

A ventilation fan 4 (shown in FIG. 3) is provided at a required interval on the ceiling inside the wind tunnel body 2. The blower fan 4 changes the rotation speed of the propeller to adjust the wind speed in the traveling direction of the vehicle. On the inner wall of the wind tunnel body 2, a sound absorbing material 5 (shown in FIG. 3) as sound absorbing means for absorbing sound vibrations is stretched over the entire surface. Also,
Inside the wind tunnel body 2, an air purifier 6 (shown in FIG. 3) using a photocatalytic filter as an exhaust gas absorbing means and a heater 7 (shown in FIG. 3) using solar heat are provided.

The exhaust conductor 3 is installed at a predetermined distance from the wind tunnel body 2 at the front of the vehicle in the traveling direction.
The exhaust derivative 3 includes a guide portion 30 that is inclined upward in the traveling direction of the vehicle, a passage portion 31 through which the vehicle passes, and a support member 32. The guide portion 30 is formed of a transparent plastic having sufficient strength.

(Operation) The operation of the road environment improvement device according to the present embodiment will be described with reference to FIGS.
When the car C travels on the road 1 and enters the inside of the wind tunnel body 2,
The vehicle C acts like a piston so as to compress the air on the front side in the traveling direction, and an air flow (running wind) occurs in the wind tunnel body 2 in the same direction as the traveling direction of the vehicle C. In addition, since the wall of the wind tunnel body 2 does not have air permeability, the compressed air does not leak to the outside from the wall, which is convenient for the generation of the traveling wind, and the traveling wind having a sufficient flow velocity is generated. appear.

The car C generates noise inside the wind tunnel body 2,
Exhaust gas is exhausted. The noise is the sound absorbing agent 5 on the inner wall of the wind tunnel body 2.
Is absorbed and blocked by the front and rear openings 20,
Except for those leaking from 21, most of them do not leak outside. Most of the exhaust gas discharged into the wind tunnel body 2 is absorbed by the air purifier 6.

The exhaust gas contains waste heat, and heats the traveling wind together with heat radiation from the engine. The heated traveling wind including the exhaust gas is discharged to the outside at a predetermined speed from the opening 21 of the wind tunnel body 2 on the front side in the traveling direction of the vehicle C. The traveling wind including the discharged exhaust gas has a buoyancy because it is heated, and furthermore, it hits the guide portion 30 of the exhaust derivative 3 provided in front of the wind tunnel body 2 and is guided upward.
Spread over the sky. The car C travels through the passage 31 of the exhaust gas guide 3.

As a result, the noise generated from the automobile C traveling on the road 1 is absorbed or shielded in the wind tunnel body 2 and the exhaust gas is diffused upward by the exhaust conductor 3 together with the traveling wind. The local living environment can be prevented from being locally damaged by noise and exhaust gas.

Also, when the temperature of the traveling wind is low and the buoyancy is insufficient due to low running air temperature and the air is difficult to diffuse upward after being discharged from the opening 21 of the wind tunnel body 2, the wind tunnel body 2 is provided. The traveling wind is heated by the heater 7 to give a sufficient buoyancy. Further, when the speed of the traveling wind is low due to the low speed of the vehicle or the low traveling density, the speed of the traveling wind can be increased by the blower fan 4.

FIG. 4 is a front view showing a second embodiment of the road environment improving device according to the present invention. In the drawings, the same or equivalent parts as those of the road environment maintenance device S1 are denoted by the same reference numerals, and the description of the same structure will be omitted.

The road environment maintenance device S2 according to this embodiment
The two exhaust derivatives 3 and 3a are installed at required intervals in the wind tunnel body 2 at the front of the vehicle C in the traveling direction. According to the road environment improvement device S2, the first passage 3 of the exhaust derivative 3
Since a part of the traveling wind leaking from 1 can be guided upward by the guide portion 30 of the next exhaust derivative 3a, the exhaust gas diffusion efficiency can be further improved. In addition,
Three or more exhaust derivatives may be provided.

FIG. 5 is a front view showing a third embodiment of the road environment improving device according to the present invention. In the drawings, the same or equivalent parts as those of the road environment maintenance device S1 are denoted by the same reference numerals, and the description of the same structure will be omitted.

The road environment improvement device S3 according to the present embodiment.
Uses a tunnel 8 as a wind tunnel body. The exhaust conductor 3b is formed in an inverted V-shape when viewed from the front.
An air guide portion 30b having the same structure as the guide portion 30 and inclined in the opposite direction is continuously provided to the guide portion 30 of the exhaust derivative 3b.
The air guide part 30b is provided with a passage port 31 similarly to the guide part 30. The air guide portion 30b constitutes means for weakening the wind from the back side of the guide portion 30.

The road environment maintenance device S3 has the same function as the road environment maintenance device S1 and also has the exhaust
b, the wind is directed in the direction opposite to the traveling wind including the exhaust air that is guided upward by the guide section 30.
It can be weakened by being guided upward and escaped by b. Thereby, it is possible to reduce that the upward guidance of the traveling wind is obstructed by the wind in the opposite direction, and the guidance is efficiently performed. In addition, the wind guide part 30b is
It can also be used in combination with the above-mentioned wind tunnel body 2 or the later-described wind tunnel bodies 2c and 2d.

FIG. 6 is a perspective view showing a fourth embodiment of the road environment improvement device according to the present invention. In the drawings, the same or equivalent parts as those of the road environment maintenance device S1 are denoted by the same reference numerals, and the description of the same structure will be omitted. The road environment maintenance device S4 includes the outbound route 11 and the return route 1
It is installed on a road 1 composed of two. Wind tunnel 2c
Is divided into right and left by a partition wall 22 over the entire length, the outbound cave 23 is provided on the outward path 11 side, and the inbound cave 24 is provided on the return path 12 side.
Is provided. The opening 21 on the front side in the traveling direction of the outbound cave 23 and the inbound cave 24 is protruded from the adjacent opening 20. The exhaust conductors 3c and 3d are arranged at a predetermined distance from both openings 20, 21 before and after the wind tunnel body 2c.

The road environment maintenance device S4 has substantially the same operation as that in the case where the road environment maintenance device S1 is provided adjacently and in a different traveling direction. Also,
Opening 21 on the front side in the traveling direction of outbound cave 23 and inbound cave 24
Are projected from the adjacent openings 20 so that the flow of the traveling wind discharged from the openings 21 is not disturbed by the air entering from the openings 20.

FIG. 7 is a perspective view showing a fifth embodiment of the road environment improving device according to the present invention. In the drawings, the same or equivalent parts as those of the road environment maintenance device S4 are denoted by the same reference numerals, and the description of the same structure will be omitted. In the road environment improvement device S5, the ceiling portions 25 and 26 on the opening 20 and 21 sides of the wind tunnel body 2d are inclined upward and outward. Further, a partition wall 22 is provided inside the wind tunnel body 2d, similarly to the road environment maintenance device S4.

According to the road environment maintenance device S5, the vehicle C
When the high-temperature exhaust gas is exhausted from the inside of the wind tunnel body 2d, the exhaust gas moves to the ceiling portions 25 and 26 by its buoyancy, is guided by the ceiling portions 25 and 26, and the openings 20 and 21
It is discharged smoothly from the top. Thereby, the ventilation in the wind tunnel body 2d is efficiently performed.
Even when the traffic volume is small and traveling wind is unlikely to occur, exhaust gas is less likely to be trapped in the wind tunnel body 2d, and contamination of the wind tunnel body 2d with exhaust gas can be reduced. Further, it is possible to prevent the occupant from becoming suffocated by the exhaust gas while the vehicle C is running. It is also possible to use a structure like the wind tunnel body 2d for the tunnel.

The terms and expressions used in the present specification are merely illustrative and not restrictive, and do not exclude the terms and expressions equivalent to the above-mentioned terms and expressions. Further, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the technical idea.

[0059]

The present invention has the above configuration and has the following effects. (A) According to the road environment maintenance device and the road structure of the present invention, when the vehicle travels and enters the inside of the wind tunnel body, the vehicle acts like a piston so as to generate air on the front side of travel. The air flows in the wind tunnel body in the same direction as the running direction of the vehicle (running wind). Automobiles generate noise inside the wind tunnel body and emit exhaust gas. Since the noise is blocked by the wall of the wind tunnel body, most of the noise does not leak to the outside except for those leaking from the front and rear openings. Also,
The exhaust gas contains waste heat and heats the traveling wind together with heat radiation from the engine. The heated traveling wind including the exhaust gas is discharged at a predetermined speed to the outside from the opening in the wind tunnel body on the front side in the traveling direction of the vehicle. The exhausted traveling wind has a buoyancy because it is heated, and is further reflected and guided to a guide portion of an exhaust derivative provided in front of the wind tunnel body, and is diffused in the sky. In addition, the automobile travels through the exhaust gas passage. In this way, the noise generated by the automobiles running on the road is absorbed or blocked by the wind tunnel body, and the exhaust gas is diffused upward by the exhaust gas, so that the living environment around the road is localized by the noise and exhaust gas. Can be prevented from being impaired.

(B) In the case where the ceiling on the opening side of the wind tunnel body is inclined upward to the outside, high-temperature exhaust gas discharged from the automobile into the wind tunnel body is guided by the buoyancy at the ceiling. , And is smoothly discharged upward from the opening. As a result, ventilation in the wind tunnel body is efficiently performed, so that, for example, even when the amount of traffic of the car is small and traveling wind is difficult to occur, exhaust gas is hardly trapped in the wind tunnel body, and it is possible to reduce contamination of the wind tunnel body with exhaust gas. At the same time, it is possible to prevent the passenger from becoming suffocated by the exhaust gas while the vehicle is running.

(C) If the wall of the wind tunnel body does not have air permeability, the compressed air does not leak from the wall to the outside as the vehicle travels, which is convenient for generating the running wind. Yes, running wind with sufficient flow velocity is generated. Thereby, the speed at which the traveling wind is reflected by the guide portion of the exhaust derivative and guided upward is secured, and the exhaust gas diffuses further in the sky, so that the diffusion efficiency is improved.

(D) In the case where the sound absorbing means is provided in the wind tunnel body, the noise leaking to the outside becomes smaller, which is particularly useful for road construction in densely populated houses and the like.

(E) In the case where the exhaust gas absorbing means is provided in the wind tunnel body, the amount of exhaust gas discharged to the outside is reduced, which is particularly useful for road construction in densely populated houses.

(F) In the case where the wind tunnel body is provided with a lighting means, the inside of the wind tunnel body can be brightened, so that it is possible to reduce the number of lighting fixtures such as fluorescent lamps and the like, and the construction cost can be reduced.

(G) If the wind tunnel body is provided with a heating means for heating the traveling wind, buoyancy can be further imparted to the traveling wind, so that the exhaust gas can be more efficiently diffused over the air. be able to.

(H) If the wind tunnel body is provided with a blowing means for accelerating or decelerating the traveling wind, the flow velocity is adjusted in accordance with the velocity of the traveling wind which varies depending on the speed and traveling density of the traveling automobile. By always adjusting the flow velocity to a suitable flow rate, the diffusion efficiency of the exhaust gas can be maintained.

(I) If the exhaust member is provided with a means for blocking or weakening the wind from the back side of the guiding portion,
Even when the wind in the direction opposite to the traveling wind including the exhaust gas guided upward in the exhaust derivative guide portion is blowing, the wind can be shielded or weakened. Thereby, it is possible to reduce that the upward guidance of the traveling wind is disturbed by the wind in the opposite direction.

(J) In the case where a plurality of exhaust conductors are provided for one wind tunnel body, a part of the traveling wind leaking from the passage portion of the front exhaust conductor is reflected to the guide portion of the rear exhaust conductor. As a result, the exhaust gas diffusion efficiency can be further improved.

(K) If the wind tunnel body is a tunnel,
It is possible to prevent the living environment in the area around the tunnel from being locally damaged by noise and exhaust gas. In addition, since the construction using the existing tunnel is possible, it is possible to relatively easily cope with a case where the number of houses increases around the tunnel after construction.

(L) The road environment improvement method according to the present invention
Since a wind tunnel body is provided on the road, and the exhaust gas discharged along with the traveling wind by the traveling of the vehicle is guided upward from the opening of the wind tunnel body on the front side in the traveling direction of the vehicle, the vehicle traveling on the road is By absorbing or insulating the emitted noise in the wind tunnel body and diffusing the exhaust gas upward, it is possible to prevent the living environment in the surrounding area of the road from being locally damaged by the noise and the exhaust gas.

[Brief description of the drawings]

FIG. 1 is a front view showing a road environment maintenance device according to a first embodiment of the present invention.

FIG. 2 is a plan view of the road environment maintenance device shown in FIG.

FIG. 3 is an explanatory sectional view taken along the line AA in FIG. 2;

FIG. 4 is a front view showing a road environment maintenance device according to a second embodiment of the present invention.

FIG. 5 is a front view of a road environment maintenance device according to a third embodiment of the present invention.

FIG. 6 is a perspective view showing a fourth embodiment of the road environment maintenance device according to the present invention.

FIG. 7 is a perspective view showing a fifth embodiment of the road environment maintenance device according to the present invention.

[Explanation of symbols]

 S1, S2, S3, S4, S5 Road environment maintenance device 1 Road 11 Outbound route 12 Return route 2, 2c, 2d Wind tunnel body 20, 21 Opening 22 Partition wall 23 Outbound route 24 Return route cavity 25, 26 Ceiling 3, 3a, 3b, 3c, 3d Exhaust derivative 30 Guide unit 30b Air guide unit 31 Passage port 32 Support member 4 Blower fan 5 Sound absorbing material 6 Air cleaner 7 Heater

Claims (14)

[Claims] Claims: 1. An opening (2) installed on a road (1) at both ends.
0,21), and an exhaust derivative (3) provided at a predetermined distance on the front side of the wind tunnel body (2) in the traveling direction of the vehicle, The road environment maintenance device, characterized in that the exhaust derivative (3) includes a guide portion (30) inclined upward in the traveling direction of the vehicle and a passage portion (31) through which the vehicle passes. 2. The ceiling (2) on the opening (20, 21) side of the wind tunnel body (2).
5. The road environment maintenance device according to claim 1, wherein (5, 26) is inclined upward to the outside. 3. The road environment maintenance device according to claim 1, wherein a wall portion of the wind tunnel body (2) has no air permeability. 4. The road environment maintenance device according to claim 1, wherein a sound absorbing means is provided in the wind tunnel body (2). 5. The road environment maintenance device according to claim 1, wherein the wind tunnel body (2) is provided with exhaust gas absorbing means. 6. The road environment maintenance device according to claim 1, wherein the wind tunnel body (2) is provided with daylighting means. 7. The road environment maintenance device according to claim 1, further comprising a heating means for heating the traveling wind in the wind tunnel body (2). 8. The road environment maintenance according to claim 1, wherein the wind tunnel body (2) is provided with blowing means for accelerating or decelerating the traveling wind. apparatus. 9. The exhaust guide (3) is provided with means for shielding or weakening the wind from the rear side of the guide part (30). The road environment maintenance device according to 6, 7, or 8. 10. The exhaust conduit (3) is provided in a plurality for one wind tunnel body (2). 9. The road environment maintenance device according to 9. 11. The wind tunnel body is a tunnel (8), characterized in that it is a tunnel (8).
The road environment maintenance device as described. 12. The method of claim 1, 2, 3, 4, 5, 6, 7,
The road environment maintenance device described in 8, 9, 10 or 11
A road structure characterized by being installed in (1). 13. A wind tunnel body (2) installed on a road (1) and having openings at both ends, and a ceiling on the opening side of the wind tunnel body (2) is inclined upwardly and outwardly. A road environment maintenance device, characterized in that: 14. Wind tunnel body (2) or tunnel on road (1)
(8) is provided to guide the exhaust discharged from the opening of the wind tunnel body (2) or the tunnel (8) along with the traveling wind of the vehicle from the front opening in the traveling direction of the vehicle upward. Characteristic, road environment maintenance method.