JP2002054911A - Evaluating method for road condition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an evaluating method for a road condition, capable of simply and accurately grasping the road condition such as the shape and size of the road, constructions and obstacles in the road. SOLUTION: The road surface condition is photographed practically from right above and the road is linearly photographed along its width direction, by a line camera 11 supported by a measuring vehicle 10 moving on the road in its travelling direction, and data successively photographed by the line camera are successively recorded in a recording medium 16 through a control device 15. Recorded data in the recording medium is diagramed by a printer output. The size of the road, and an area for constructions and damages in the road are also computed based on the recorded content of the recording medium. In addition, a repair cost for the road is computed, based on the data in a memory part where a relation between kind and size of the damage and the cost to repair the damage is recorded and the computed result for the area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road condition evaluation method for evaluating the condition of a road such as the shape and size of a road, and the shape and size of structures and damage on the road.

[0002]

2. Description of the Related Art Conventionally, road repairers, road managers, etc., have been evaluating road conditions such as shapes and dimensions of roads and shapes and dimensions such as damage to structures and cracks in roads. This has been done by measuring or surveying the measured part. In particular, for damage such as cracks and irregularities on the road, it is examined for each part,
Such data was compiled into survey results, and if repairs were necessary, repair costs were calculated based on the data. Normally, a road repair company evaluates the state of such a road and negotiates with a road manager such as a public organization on the contents of the repair business based on the data.

[0003]

However, according to the above method, it is possible to know in detail the partial condition of the road, but not to know in detail the condition of the entire road in a predetermined long section. However, it was difficult for the road manager to understand the contents of the repair project. Therefore, it is necessary to go to the site and check it in order to know the entire predetermined section of the road in detail, but this requires a great deal of time and labor.

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problem, and simply and accurately determines the road condition such as the shape and dimensions of the road surface and the shapes and dimensions of structures and obstacles on the road over a long range of the road. It is an object of the present invention to provide a road condition evaluation method which can effectively utilize the result for road management and road repair.

[0005]

In order to achieve the above object, a structural feature of the first aspect of the present invention is a line supported by a measuring vehicle moving on a road in a traveling direction of the vehicle. By the photographing means, the road surface condition is photographed in a straight line along the width direction from substantially right above the road, and continuous photographing data in the traveling direction of the vehicle by the line photographing means is continuously recorded in the recording means, The recording contents of the recording means are displayed on the display means. Here, the road includes a side zone 1 m from the road and a part of a sidewalk adjacent to the road.

According to the first aspect of the present invention, the road surface condition is changed from substantially right above the width direction along the measuring vehicle moving on the road in the traveling direction of the vehicle by the line photographing means. The road is photographed in a straight line, the continuous photographing data by the line photographing means is continuously recorded in the recording means, and a printer, an image display device, etc. are displayed based on the recorded contents of the continuously recorded road. The recorded contents can be displayed by the means.

As a result, according to the first aspect of the present invention, road conditions can be accurately reproduced over a wide range by output from an image display device or a printer output, so that the contents can be recognized very easily. it can. That is,
The shape, size, length, etc. of all manholes, boxes, bridges and other structures in the road can be accurately drawn. Also, for the lane line, the length, color, material, number of zebras, length, and width can be drawn as they are. For the intersection, the mounting angle and width of the T-shape, Y-shape, cross-shape and the like can be drawn. In addition, it is possible to accurately measure the width of a left-turning vehicle, a right-turning vehicle, a straight vehicle, and the like.
Further, for the side zones, sidewalks, and the like in a predetermined range of the side of the road, the accurate index of the structure, the position, the size and the number of the blocks and the water collecting mass, the places where the private house enters, and the like are clearly drawn. As a result, it is very convenient and can prevent troubles at the site because the output in the form of a drawing allows the user to perform road management, construction work, etc. at the desk without going to the site. .

A second feature of the present invention resides in that a line photographing means supported by a measuring vehicle moving on a road in a running direction of the vehicle makes it possible to change the road surface state from substantially right above in the width direction. The road is photographed in a straight line along the road, continuous photographing data in the traveling direction of the vehicle by the line photographing means is transmitted through a communication line, and the photographing data is received and continuously recorded in the recording means. The recorded content is displayed on the display means.

According to the second aspect of the present invention, in addition to the operation and effect of the first aspect, the continuous photographing data by the line photographing means is transmitted by the communication means so that it can be transmitted from the measuring place. The photographing data can be quickly obtained even at a remote place. As a result, it is very convenient when using photographing data at a place far away.

According to a third aspect of the present invention, there is provided the road condition evaluation method according to the first or second aspect, wherein the existing road surface recording data recording the road condition related to the photographing. Is used to display road surface recording data in addition to photographing data on the display means. Here, the existing road surface record data includes public data and private data.

According to the third aspect of the present invention, the road surface condition of a predetermined range of roads is photographed by the line photographing means supported by the measuring vehicle, and at least partially existing detailed road surface recording data is recorded. Is used, road surface record data can be displayed on the display means in addition to the photographing data. As a result, according to the present invention, the existing road surface record data can be effectively used, and the data processing can be simplified, so that the cost for evaluating the road condition can be reduced.

According to a fourth aspect of the present invention, there is provided the road condition evaluation method according to any one of the first to third aspects, wherein: The area calculating means calculates the dimensions of the road, and the area of the structure and damage on the road.

According to the fourth aspect of the present invention, the area calculating means can automatically calculate the dimensions of the road, the area of structures and obstacles in the road, and the like. The drawings can be used as construction drawings.

According to a fifth aspect of the present invention, in the road condition evaluation method according to the fourth aspect, the relationship between the type and size of road damage and the cost required for repairing the damage. Repair data storage means for storing
The road repair cost is calculated based on the data in the repair data storage means and the calculation result of the area calculating means.

According to the fifth aspect of the present invention, the data of the repair data storage means for storing the relationship between the type and size of damage such as cracks and the cost required for repairing the damage, and the area calculation Based on the calculation result of the means,
Since the repair cost of the road is automatically calculated, an estimate for the repair of the road can be easily created, and the meeting of the construction can be performed very accurately.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an evaluation configuration including a measurement vehicle for evaluating a road surface condition of a road according to the embodiment. FIG. 2 is a plan view schematically showing the measurement vehicle. The measuring vehicle 10 has a line camera 11 as a line photographing means supported by a support rod at a position forward of the front surface and above the vehicle body, and a control device 15 for processing a signal from the line camera 11 is provided inside. ing.

The line camera 11 is for taking a straight line image of the road surface condition along the width direction from directly above the road, and converts the light input from the road surface into an electric signal as shown in FIG. A large number of image sensors 12 to be converted are arranged in a horizontal line, and a lens 13 for collecting optical signals from the road surface G is provided below the image sensors 12. The control device 15 includes a ROM, a RAM,
It comprises a microcomputer comprising a CPU, I / O, etc., and is connected to a removable recording medium 16 such as a CDROM. The line camera 11 is connected to the input side of the control device 15.

As shown in FIG. 1, a recording processing device 20 is prepared in a business office or the like separately from the measuring vehicle 10, and processes the contents of the removed recording medium 16. The recording processing device 20 includes a ROM, RA
The microcomputer is constituted by a microcomputer including M, CPU, I / O, etc., and the ROM stores the relationship between the type and size of damage such as cracks on the road surface and the cost required for repairing the damage. Repair data to be stored is stored. For this repair data, in addition to its own data, databases of various road repair companies can be used. A recording medium reading device (not shown) is provided on the input side of the recording processing device 20, and a printer 21 is connected to the output side of the recording processing device 20 as data display means. However, a video display can be used instead of a printer, or both can be used together.

Next, evaluation and measurement of road conditions will be described. By moving the measuring vehicle 10 in the traveling direction (longitudinal direction) of the vehicle, the road camera is linearly photographed by the line camera 11 from substantially directly above the road along the width direction. Thus, the photographing signal photographed by the line camera 11 is continuously input to the control device 15 and is continuously recorded on the recording medium 16. As described above, when the photographing of the road in the predetermined range by the line camera 11 is completed,
The recording medium 16 on which the photographing result is recorded is removed from the control device 15 and is input to the recording processing device 20 provided in the business office.

Based on the photographing data recorded on the recording medium 16, the recording processing device 20 outputs the entire photographed road within a predetermined range to the printer 21 so as to make a drawing as shown in FIG. Can be. By drawing based on such recorded data, it is necessary to accurately draw the shape, size, length, etc. of all manholes, boxes, bridges and other structures in the roadway, calculate the area, and display it Can be. Also, for the lane line L, the length,
Color, material, number of zebras, length and width can be drawn as they are. For the intersection, the attachment angles and widths of the T-shape, the Y-shape, the cross-shape, etc. can be drawn and calculated and displayed. In addition, it is possible to accurately measure the width of a left-turn, right-turn vehicle, straight-ahead vehicle, and the like. In addition, for the side zone of the side of the road about 1 m, the sidewalk W, etc., the accurate determination of the street tree and the structure, the position, the size and the number of the blocks and the catchment cells,
The places where private houses enter are clearly drawn.

Further, cracks X, dents / projections Y on the road surface
Since the repair data for storing the relationship between the cost and the cost required for repairing the damage prepared in advance is stored in the ROM of the recording processing device 20 in accordance with the type and size of the damage, The processing device 20 can calculate the repair cost for the recorded content of the recording medium 16 based on the repair data. As a result, the output of the roads within the specified range can be grasped in detail by drawing out the output, and the repair cost can be known accurately. Meetings can be conducted on a desk, which is very convenient, and furthermore, troubles on site can be prevented.

Next, another embodiment will be described.
In the present embodiment, in addition to the photographing data, another database 18 about the road surface condition of the road is to be used. As other databases, there are private databases owned by road repair companies and the like who evaluate this road condition, and further, databases owned by countries, etc.
For example, there is an MCI (Maintenance Control Index) for main roads nationwide.
According to MCI, data on road rutting, flatness, cracks, etc. are included for a long time,
It is a very useful database.

The other database 18 is connected to the input side of the control device 15 as shown by the dotted line in FIG. 1, is read by the control device 15, is processed together with the input from the line camera 11, and is processed by the recording medium 16. Is stored. For example, when the road condition of a predetermined range of roads is photographed by the line camera 11, the result of the damage of a specific portion is partially converted into a printer using another database 18 which is existing detailed road record data. Outputting the data to 21 or the like can save the trouble of data analysis. As a result, the existing road surface record database 18 can be effectively used, and the data processing can be simplified, so that the cost for evaluating the road condition can be reduced.

In each of the above embodiments, the recording medium 16 removed from the control device 15 in the measurement vehicle 10 is displayed by a printer output or the like through a recording processing device 20 separately prepared in a business office or the like. However, instead of this, the output of the control device 15 is provided at a business office or the like via a communication line such as the Internet and transmitted to the receiving device, and is input to the recording medium 16 from the receiving device or directly output to a printer. You can do it. This makes it possible to immediately use road information captured at a distant place, which is very convenient for data processing.

In addition, what is shown in the above embodiment is an example, and various modifications can be made without departing from the gist of the present invention. Further, in the present invention, the road surface condition of the road is evaluated. However, this evaluation method can be used for evaluating the road surface condition of the parking lot following the road, and can be used for the road surface management of the parking lot. Can be.

[Brief description of the drawings]

FIG. 1 is a schematic diagram schematically showing an evaluation system used in a road surface evaluation method according to an embodiment of the present invention.

FIG. 2 is a plan view schematically showing a measurement vehicle used in the evaluation method.

FIG. 3 is an explanatory diagram illustrating a measurement state of a line camera for photographing a road surface used in the evaluation method.

FIG. 4 is an explanatory diagram showing a road surface displayed by the evaluation method.

[Explanation of symbols]

Reference Signs List 10: measuring vehicle, 11: line camera, 12: imaging element, 13: lens, 15: control device, 16: recording medium,
18 ... other databases, 20 ... recording processing device, 21 ...
Printer.

Claims (5)

[Claims] 1. A road image is taken in a straight line along a width direction from substantially right above by a line photographing means supported by a measuring vehicle moving on the road in a traveling direction of the vehicle. A road condition evaluation method, characterized in that continuous photographing data of a traveling direction of a vehicle by a photographing means is continuously recorded in a recording means, and the recorded contents of the recording means are displayed on a display means. 2. The road surface condition is photographed in a straight line along the width direction from substantially right above by a line photographing means supported by a measuring vehicle traveling on the road in the traveling direction of the vehicle. Continuous photographing data in the traveling direction of the vehicle by the photographing means is transmitted through the communication line, the photographing data is received and continuously recorded in the recording means, and the recorded contents of the recording means are displayed on the display means. A road condition evaluation method characterized by the following. 3. The apparatus according to claim 1, wherein said road surface record data is displayed on said display means in addition to said photographing data by using existing road surface record data which records the state of the road involved in said photographing. The road condition evaluation method according to claim 1 or 2, wherein: 4. An apparatus according to claim 1, wherein said area calculating means calculates an area of a road, a structure on the road, and an area such as damage on the basis of the recorded contents of said recording means. The method for evaluating a road condition according to claim 3. 5. A repair data storage means for storing a relationship between a type and a size of the road damage and a cost required for repairing the damage, wherein data of the repair data storage means and calculation of the area calculation means are provided. The road condition evaluation method according to claim 4, wherein the road repair cost is calculated based on the result.