Site information provision system and site information provision method

Abstract

To easily obtain and provide information regarding usable residential land areas. [Solution] The site information provision system 1, using the site information creation unit 21 of the server 2, calculates an effective residential area that has an outline set back by a predetermined setback distance from the center line of the road area toward the site area for site areas facing a road area less than a predetermined width threshold, based on land data that includes at least polygon data that demarcates the site area and the road area. The site information provision unit 22 of the server 2 provides site information relating to the site area, including effective residential area information relating to the effective residential area, to the client terminal 3.

Description

Technical Field

[0001] The present invention relates to a site information providing system and a site information providing method for providing site information including an effective residential area in a site area adjacent to a road.

Background Art

[0002] Conventionally, there has been a demand to provide site information regarding a site area such as a residential lot to real estate developers via terminals such as smartphones and tablets.

[0003] For example, the information processing apparatus disclosed in Patent Document 1 includes a dividing unit that divides a public polygon into a group of pen polygons including a plurality of pen polygons, a generating unit that generates reference points for each of the pen polygons, and a filtering unit that performs first filtering for extracting reference points based on at least one of the area and distortion degree of the pen polygon. The apparatus further includes a creating unit that obtains the coordinates of the extracted reference points in a common coordinate system and overlays the group of pen polygons on a residential map using the coordinates of the reference points in the common coordinate system to create map data.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in Japan, according to Article 42 of the Building Standards Law, it is required that the site of a building faces a road with a width of 4 m or more. For a site facing a road with a width of less than 4 m, a line 2 m behind (setback) from the center line of the road is regarded as the boundary line of the road. That is, in a site area facing a road with a width of less than 4 m, the position 2 m set back from the center line of the road is the effective residential area where a building can be constructed.

[0006] However, conventional technology only provides information about the overall outline of the site area, regardless of adjacent roads. Real estate developers cannot obtain information about the usable land area without manual surveying and calculations by experts. Therefore, real estate developers cannot easily obtain information about the usable land area via devices such as smartphones or tablets.

[0007] Therefore, the present invention aims to provide a site information provision system and a site information provision method that can easily acquire and provide information regarding the effective residential land area, taking the above circumstances into consideration. [Means for solving the problem]

[0008] To solve the above problems, the site information provision system of the present invention is characterized by calculating an effective residential land area having an outline set back by a predetermined setback distance from the center line of the road area toward the site area with respect to the site area facing the road area which is less than a predetermined width threshold, based on land data which includes at least polygon data that demarcates the site area and the road area, and providing site information relating to the site area including effective residential land area information relating to the effective residential land area.

[0009] Furthermore, in order to solve the above problems, the present invention provides site information, which is characterized by calculating an effective residential land area having an outline set back by a predetermined setback distance from the center line of the road area toward the site area with respect to the site area facing the road area which is less than a predetermined width threshold, based on land data which includes at least polygon data that demarcates the site area and the road area, and providing site information relating to the site area including effective residential land area information relating to the effective residential land area. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a site information provision system and a site information provision method that can easily acquire and provide information regarding the effective residential land area. [Brief explanation of the drawing]

[0011] [Figure 1] This is a schematic block diagram showing a site information provision system according to one embodiment of the present invention. [Figure 2] This is a schematic diagram showing an example of a site area for providing site information in a site information provision system according to one embodiment of the present invention. [Figure 3] This is a schematic diagram showing an example of an effective residential land area in a site information provision system according to one embodiment of the present invention. [Figure 4] This is a front view showing an example of a site selection screen in a site information provision system according to one embodiment of the present invention. [Figure 5] This is a front view showing an example of a site information display screen in a site information provision system according to one embodiment of the present invention. [Modes for carrying out the invention]

[0012] First, with reference to Figure 1, the overall configuration of the site information provision system 1 according to an embodiment of the present invention will be described. As shown in Figure 1, the site information provision system 1 comprises a server 2 that provides site information and a client terminal 3 that receives site information, and the server 2 and the client terminal 3 are connected to each other so as to be able to communicate via a network 5 such as the Internet.

[0013] Although Figure 1 illustrates an example where one server 2 has one client terminal 3, the site information provision system 1 may have multiple client terminals 3.

[0014] The site information provision system 1 provides clients via the client terminal 3 with site information relating to a site area such as a residential plot, including information such as the outline, area, and location of the site area, as well as information such as the outline, area, and location of the effective residential land area. In this embodiment, for a site area facing a road with a width threshold of less than a predetermined threshold (e.g., 4 m), the effective residential land area where a building can be constructed is the position set back from the center line of the road by a predetermined setback distance (e.g., 2 m).

[0015] Server 2 is a device that creates site information based on input land data and provides it to the client. Server 2 is composed of a control unit 10, a storage unit 11, and a communication unit 12.

[0016] The control unit 10 is a computer, such as a CPU, that comprehensively controls the overall operation of the server 2, and is connected to the storage unit 11 and the communication unit 12. The storage unit 11 is composed of recording media such as ROM, RAM, and hard disk drives, and stores programs and data for controlling the various components and functions of the server 2. The communication unit 12 is an interface for the server 2 to connect to a network 5 such as the Internet, that is, it connects the server 2 to the client terminal 3 via the network 5.

[0017] In other words, the control unit 10 controls the various components and functions of the server 2 by executing calculations based on programs and data stored in the storage unit 11. The control unit 10 operates as the land data input unit 20, the site information creation unit 21, and the site information provision unit 22 by executing programs stored in the storage unit 11. The land data input unit 20, the site information creation unit 21, and the site information provision unit 22 realize the land data input process, the site information creation process, and the site information provision process of the site information provision method according to the present invention.

[0018] The land data input unit 20 inputs land data including polygon data that demarcates the site area and the road area, land information such as the area type and coordinates of each demarcated polygon. For example, the land data input unit 20 accesses an external website or server via the communication unit 12 to obtain map data, official maps, real estate registers, etc., extracts the polygon data and the land information of each site area, and stores them in the storage unit 11.

[0019] The site information creation unit 21 creates site information to be provided to the client for each site area based on the land data stored in the storage unit 11. For example, the site information creation unit 21 creates site information such as the outline, area, and location of each site area based on the land data and stores it in the storage unit 11. Also, the site information creation unit 21 creates effective homestead area information such as the outline, area, and location of the effective homestead area of each site area based on the land data and stores it in the storage unit 11.

[0020] Specifically, when the site information creation unit 21 targets the site area 50 as shown in FIG. 2 for creation, first, it calculates a plurality of boundary lines 50a, 50b, 50c, 50d that constitute the outline of the site area 50 based on the polygon data of the land data. Also, for each of the boundary lines 50a, 50b, 50c, 50d of the site area 50 to be created, the site information creation unit 21 determines the area type such as the land use of the area (adjacent area) adjacent to the site area 50 across each boundary line 50a, 50b, 50c, 50d based on the official map or real estate register of the land data. In the example shown in FIG. 2, the site area 50 to be created is adjacent to other site areas 51, 52, 53 across the boundary lines 50a, 50b, 50c, and is adjacent to the road area 54 across the boundary line 50d.

[0021] Next, when the area type of the adjacent area of the site area 50 to be created is a site, that is, when the adjacent areas of the site area 50 to be created are other site areas 51, 52, and 53, as shown in FIG. 3, the other site areas 51, 52, and 53 are assumed to be hypothetical roads 56, 57, and 58 that exceed a predetermined width threshold, and after retreating (setback) a predetermined retreat distance (setback distance) from the center lines 56a, 57a, and 58a of the hypothetical roads 56, 57, and 58, retreat boundaries 56b, 57b, and 58b are calculated. Also, when the area type of the adjacent area of the site area 50 to be created is a road, that is, when the adjacent area of the site area 50 to be created is a road area 54, as shown in FIG. 3, a retreat boundary 54b is calculated by retreating a predetermined retreat distance from the center line 54a of the road area 54.

[0022] Then, the site information creation unit 21 calculates, as a retreat area 60 (setback area) indicated by left-shoulder-downward hatching, an area that is not included inside the retreat outer shape formed by the retreat boundaries 56b, 57b, 58b, and 54b of the hypothetical roads 56, 57, 58 and the road area 54 and is included inside the outer shape of the site area 50. Also, the site information creation unit 21 calculates, as an effective building land area 61 indicated by right-shoulder-downward hatching, an area that is included inside the retreat outer shape formed by the retreat boundaries 56b, 57b, 58b, and 54b of the hypothetical roads 56, 57, 58 and the road area 54 and is included inside the outer shape of the site area 50.

[0023] The site information creation unit 21 stores, in the storage unit 11 as effective building land area information, the outer shape, area, position, etc. of the retreat area 60 and the effective building land area 61 calculated as described above.

[0024] Note that the land data input unit 20 enables the input of the road width of the road area adjacent to each site area.

[0025] For example, the land data input unit 20 calculates the road width of the road area adjacent to each site area based on polygon data, and the site information creation unit 21 calculates the center line of the road area based on this road width.

[0026] Alternatively, the land data input unit 20 receives input from the client terminal 3 regarding the road width of the road area adjacent to each site area, receives the road width entered by the client terminal 3 from the client terminal 3 via the communication unit 12, and the site information creation unit 21 calculates the centerline of the road area based on this road width.

[0027] The site information provision unit 22 provides site information relating to the site area created by the site information creation unit 21 to the client terminal 3 via the communication unit 12. In this embodiment, it also provides effective land area information relating to the effective land area. The site information provision unit 22 may provide various screens relating to the provision of site information to the client terminal 3 through a website accessible to the client terminal 3, or it may provide various screens relating to the provision of site information to the client terminal 3 through a web application launched on the client terminal 3.

[0028] First, the site information provision unit 22 provides the client terminal 3 with a site selection screen 70, as shown in Figure 4, which allows the client terminal 3 to select a site area to be provided with site information. At this time, the site information provision unit 22 may allow the client terminal 3 to input the address of the site area to be provided on the site selection screen 70, or, as shown in Figure 4, it may allow the client terminal 3 to select a polygon 72 of the site area to be provided on a map 71 based on polygon data. The site information provision unit 22 may also allow the client terminal 3 to select multiple consecutively adjacent site areas on the site selection screen 70, and these site areas may be treated as a single site area to be provided.

[0029] Furthermore, the site information provision unit 22 may, in the site selection screen 70, simultaneously display, in the map 71 based on polygon data, polygons 72 that show the outline of each site area and polygons that show the outline of the effective building area and setback area based on the effective building area information of the site area, in a way that allows for identification. At this time, the site information provision unit 22 may, in the site selection screen 70, allow the display and hiding of the polygons of the effective building area and setback area of ​​each site area to be switched on or off according to the user's operation.

[0030] Furthermore, the site information provision unit 22 provides the client terminal 3 with a site information display screen 75 that displays detailed site information for the site area selected on the site selection screen 70. The site information provision unit 22 may display the site information display screen 75 as a pop-up on the site selection screen 70 (see Figure 4), or it may display the site information display screen 75 instead of the site selection screen 70 (see Figure 5). For example, the site information provision unit 22 simultaneously displays, in the site information display screen 75, a polygon 76 that shows the outline of the selected site area, a polygon 77 that shows the effective building area of ​​the site area, and a polygon that shows the outline of the setback area, in a distinguishable manner. As shown in Figure 4, the site information provision unit 22 displays the land area of ​​the selected site area, the land area of ​​the effective building area, registration information, construction conditions (floor area ratio, building coverage ratio, etc.), etc. on the site information display screen 75.

[0031] Furthermore, the land data input unit 20 may accept input operations for the road width of the road area adjacent to the site area on the site information display screen 75 displayed by the site information provision unit 22.

[0032] Furthermore, the site information provision unit 22 displays the results of a simulation of a building that can be constructed based on the construction conditions for the effective residential land area of ​​the site on the site information display screen 75. For example, as shown in Figure 5, the site information provision unit 22 displays a 2D model or 3D model 78 of the simulated building on a polygon 77 that represents the outline of the effective residential land area of ​​the site. The site information provision unit 22 may simulate various building patterns.

[0033] The client terminal 3 is a device that receives site information for the site area that the client wishes to view from the server 2, and is composed of, for example, a personal computer, smartphone, or tablet terminal. The client terminal 3 is composed of a control unit 30, a storage unit 31, a communication unit 32, a display unit 33, and an operation unit 34.

[0034] The control unit 30 is composed of a computer such as a CPU to comprehensively control the overall operation of the client terminal 3, and is connected to the storage unit 31, communication unit 32, display unit 33, and operation unit 34. The storage unit 31 is composed of recording media such as ROM, RAM, and hard disk drive, and stores programs and data for controlling various components and functions of the client terminal 3. The communication unit 32 is an interface for the client terminal 3 to connect to a network 5 such as the Internet, that is, it connects the client terminal 3 to the server 2 via the network 5.

[0035] For example, the client terminal 3 is equipped with a web browser and accesses the server 2 via the communication unit 32, displaying the site selection screen 70 and site information display screen 75 provided by the server 2 using the web browser.

[0036] Alternatively, the client terminal 3 may be equipped with a web application for displaying, for example, a site selection screen 70 or a site information display screen 75. The client terminal 3 accesses the server 2 via the communication unit 32, receives the information necessary for displaying the site selection screen 70 or the site information display screen 75 from the server 2, and displays the site selection screen 70 or the site information display screen 75 using the web application.

[0037] In this embodiment, as described above, the site information provision system 1, using the site information creation unit 21 of the server 2, calculates an effective residential area having an outline set back by a predetermined setback distance from the centerline of the road area toward the site area for site areas facing a road area less than a predetermined width threshold, based on land data that includes at least polygon data that demarcates the site area and the road area. The site information provision unit 22 of the server 2 then provides site information relating to the site area, including effective residential area information relating to the effective residential area, to the client terminal 3.

[0038] As a result, according to this embodiment, the client can easily obtain site information regarding the site area, including effective land area information, without having to perform manual surveying or calculations.

[0039] Furthermore, in this embodiment, the site information creation unit 21 calculates a plurality of boundary lines constituting the outline of the site area based on polygon data, and for each boundary line, determines the type of adjacent area adjacent to the site area on either side of the boundary line based on the land data. If the type of adjacent area is a site, the site information creation unit 21 assumes the adjacent area is a hypothetical road exceeding a predetermined width threshold and calculates a setback boundary line set back by a predetermined setback distance from the center line of the hypothetical road. On the other hand, if the type of adjacent area is a road, the site information creation unit 21 calculates a setback boundary line set back by a predetermined setback distance from the center line of the adjacent road area. The site information creation unit 21 calculates an area that is not included inside the setback outline made up of setback boundaries but is included inside the outline of the site area as a setback area, and calculates an area that is included inside the setback outline made up of setback boundaries but is not included inside the outline of the site area as an effective residential area.

[0040] As a result, according to this embodiment, the effective land area set back from the centerline of the adjacent road area can be easily calculated compared to techniques that calculate effective land through manual surveying and manual calculations.

[0041] Furthermore, in this embodiment, if the area type of the adjacent area is a road, the site information creation unit 21 calculates the road width of the adjacent road area based on polygon data, and calculates the centerline of the road area based on the road width.

[0042] As a result, according to this embodiment, the road width of the road area can be set and the effective building lot area can be easily calculated without burdening the client.

[0043] Furthermore, in this embodiment, if the area type of the adjacent area is a road, the site information creation unit 21 receives input from the client terminal 3 regarding the road width of the adjacent road area and calculates the centerline of the road area based on the road width.

[0044] As a result, according to this embodiment, the client can arbitrarily set the road width of the road area and easily calculate the effective building lot area.

[0045] In this embodiment, the site information provision unit 22 overlays the effective residential land area onto polygon data and displays it on the display unit 33 of the client terminal 3.

[0046] As a result, according to this embodiment, the client can visually grasp the usable building area within the site.

[0047] In this embodiment, the site information provision unit 22 overlays the setback area onto polygon data and displays it on the display unit 33 of the client terminal 3.

[0048] As a result, according to this embodiment, the client can visually understand the setback area of ​​the site.

[0049] In this embodiment, the site information provision unit 22 simulates and displays buildings that can be constructed in the effective building area on the display unit 33 of the client terminal 3.

[0050] As a result, according to this embodiment, the client can visually understand the buildings that can be constructed within the effective building area of ​​the site.

[0051] The present invention may be modified as appropriate, provided that it does not contradict the gist or idea of ​​the invention as can be read from the claims and the specification as a whole, and site information provision systems and site information provision methods that involve such modifications are also included in the technical concept of the present invention. [Explanation of symbols]

[0052] 1. Site Information Provision System 2 servers 3. Client terminals 10 Control Unit 11 Storage section 20 Land Data Entry Section 21 Site Information Creation Department 22 Site Information Provision Department 30 Control Unit 31 Storage section 33 Display section 34 Control section

Claims

1. Based on land data that includes at least polygon data defining the site area and the road area, with respect to the site area facing the road area which is less than a predetermined width threshold, the effective residential area having an outline set back by a predetermined setback distance from the centerline of the road area toward the site area is calculated. A site information provision system characterized by providing site information relating to the site area, including effective land area information relating to the effective land area.

2. Multiple boundary lines constituting the outer shape of the site area are calculated based on the polygon data, For each of the aforementioned boundary lines, the type of adjacent area adjacent to the site area across that boundary line is determined based on the land data. If the type of the adjacent area is a site, the adjacent area is assumed to be a hypothetical road exceeding the predetermined width threshold, and the setback boundary line is calculated by setting it back by the predetermined setback distance from the center line of the hypothetical road. If the type of the adjacent area is a road, the setback boundary line is calculated by setting back a predetermined setback distance from the center line of the road area which is the adjacent area. The area that is not included inside the setback outline formed by the setback boundary line but is included inside the outline of the site area is calculated as the setback area. The site information provision system according to claim 1, characterized in that the area that is included inside the setback outline formed by the setback boundary line, and that is not included inside the outline of the site area, is calculated as the effective building lot area.

3. The site information provision system according to claim 2, characterized in that, if the type of the adjacent area is a road, the road width of the adjacent road area is calculated based on the polygon data, and the centerline of the road area is calculated based on the road width.

4. The site information provision system according to claim 2, characterized in that, if the type of the adjacent area is a road, the system accepts input of the road width of the adjacent road area from a client terminal and calculates the centerline of the road area based on the road width.

5. The site information provision system according to claim 1, characterized in that the effective residential land area is overlaid on the polygon data and displayed on the client terminal.

6. The site information provision system according to claim 2, characterized in that the setback area is overlaid on the polygon data and displayed on the client terminal.

7. The site information provision system according to claim 1, characterized in that it displays a simulated view on a client terminal of buildings that can be constructed in the aforementioned effective residential land area.

8. Based on land data that includes at least polygon data defining the site area and the road area, with respect to the site area facing the road area which is less than a predetermined width threshold, the effective residential area having an outline set back by a predetermined setback distance from the centerline of the road area toward the site area is calculated. A method for providing site information, characterized by providing site information relating to the site area, including effective land area information relating to the effective land area.

Images