Support information provision device

Abstract

To provide a driving support device of a vehicle by appropriately setting a near-miss level.SOLUTION: A support information provision device 1 provides a near-miss level with respect to a driving support device 100 of a vehicle V. The support information provision device 1 includes: a level setting section 11 for dividing map information into a plurality of regions and setting a near-miss level based on an unstable action information of the vehicle V for each one of division areas obtained by dividing the division regions into the plurality of areas; a division area extraction section 12 for extracting the division areas which are mutually adjacent by sandwiching a boundary of the regions; and a level correction section 13 for correcting the near-miss level of the division areas extracted by the division area extraction section 12. The level correction section 13 corrects the near-miss level so as to obtain coincidence in magnitude relation between the near-miss levels of the division areas which are extracted by the division area extraction section 12 with respect to number relation between the numbers of unstable actions of the division areas which are extracted by the division area extraction section 12.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an assistance information providing device that provides a near-miss level to a driving assistance device of a vehicle. [Background technology]

[0002] Estimation of the likelihood of near-miss events occurring during vehicle travel has been carried out. For example, Patent Document 1 describes a device that estimates the risk of near-miss events, such as a driver running out into the street at an intersection. The near-miss level, which indicates the likelihood of such near-miss events occurring, is used, for example, for vehicle driving assistance. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-89698 Summary of the Invention [Problem to be solved by the invention]

[0004] Generally, when setting (estimating) near-miss levels that indicate the likelihood of near-miss events, map information is divided into multiple regions, and a near-miss level is set for each divided area within each divided region. Because a near-miss level is set for each region, adjacent divided areas across a boundary between regions are likely to be assigned different near-miss levels even if they have similar environments in terms of the likelihood of near-miss events. For this reason, when vehicle driving assistance is provided based on such near-miss levels, the driver (occupant) of the vehicle may feel uncomfortable.

[0005] Therefore, the present disclosure describes an assistance information providing device that can more appropriately set a near-miss level and provide it to a driving assistance device of a vehicle. [Means for solving the problem]

[0006] One aspect of the present disclosure is an assistance information providing device that provides a near miss level indicating the likelihood of a near miss event occurring in a vehicle to a driving assistance device of a vehicle, the assistance information providing device including: a level setting unit that divides map information into a plurality of regions, and further divides the divided regions into a plurality of divided areas, and sets a near miss level for each divided area based on unstable behavior information including location information where the vehicle exhibits unstable behavior that differs from normal driving; a divided area extraction unit that extracts divided areas adjacent to each other across a boundary between the regions; a level correction unit that corrects at least one of the near miss levels of the divided areas extracted by the divided area extraction unit; and provides the near miss level set by the level setting unit or the corrected near miss level corrected by the level correction unit to the driving assistance device. The level setting unit sets a near-miss level for each of the divided areas within a plurality of regions individually, calculating the number of unstable behaviors, which is the number of times that a vehicle exhibited unstable behavior, for each of the divided areas within the region, and sets a near-miss level for each of the divided areas within the region based on the relative magnitude of the number of unstable behaviors for the divided areas within the region so that the higher the number of unstable behaviors within the region, the higher the near-miss level will be, and the level correction unit corrects the near-miss level so that the relative magnitude of the near-miss levels for the divided areas extracted by the divided area extraction unit matches the relative magnitude of the number of unstable behaviors for the divided areas extracted by the divided area extraction unit.

[0007] In the above-mentioned support information providing device, if the correction of the near-warning level causes a sudden change of more than a predetermined threshold between the divided area extracted by the divided area extraction unit and the surrounding divided area, which is the divided area surrounding it, the level correction unit may correct the near-warning level of the surrounding divided area so as to mitigate the sudden change.

[0008] The above-mentioned assistance information providing device further includes a route acquisition unit that acquires the planned driving route along which the vehicle is to travel, and when the level correction unit has corrected the near-miss levels so that the magnitude relationship between the near-miss levels matches the relative magnitude relationship between the numbers of unstable behaviors, the providing unit determines, based on the driving route, whether the vehicle will travel across an area including the divided area where the correction was made and another area adjacent to the divided area where the correction was made, and if the vehicle will travel across these areas, the corrected near-miss level is provided to the vehicle's driving assistance device, and if the vehicle will not travel across these areas, the providing unit may provide the uncorrected near-miss level to the vehicle's driving assistance device. [Effects of the Invention]

[0009] According to one aspect of the present disclosure, a near-miss level can be set more appropriately and provided to a driving assistance device of a vehicle. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a block diagram illustrating an example of a support information providing device according to an embodiment. [Figure 2] FIG. 2 is a schematic diagram showing adjacent divided areas across a regional boundary. [Figure 3] FIG. 3 is a flowchart showing the flow of the near-incident level providing process performed by the support information providing device. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, exemplary embodiments will be described with reference to the drawings. In each drawing, the same or corresponding elements are designated by the same reference numerals, and redundant description will be omitted.

[0012] The support information providing device 1 shown in FIG. 1 sets a near miss level indicating the likelihood of a near miss event occurring in the vehicle V for each divided area. The support information providing device 1 provides the set near miss level to the driving support device 100 of the vehicle V. A near miss event means, for example, a situation that is not anticipated by the driver of the vehicle V. A near miss event means, for example, a situation that is not anticipated in advance in the driving scene of the vehicle V. The near miss level is set high when a near miss event is likely to occur, and is set low when a near miss event is unlikely to occur.

[0013] In this embodiment, the support information providing device 1 is configured by a server device, as an example. The support information providing device 1 provides (transmits) the near-miss level to the driving support device 100 of the vehicle V via wireless communication or the like. However, the support information providing device 1 is not limited to being configured by a server device. The support information providing device 1 may also be mounted on the vehicle V.

[0014] The driving assistance device 100 of the vehicle V provides driving assistance for the vehicle V based on the provided near-miss level. For example, when the vehicle V is traveling in a divided area with a high near-miss level, the driving assistance device 100 can accelerate the start timing of driving assistance control or strengthen the degree of driving assistance control compared to when the near-miss level is low. There are no particular limitations on the type of driving assistance provided by the driving assistance device 100.

[0015] The support information providing device 1 is an electronic control unit having a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), communication devices, etc. The support information providing device 1, for example, loads a program recorded in the ROM into the RAM and executes the program loaded into the RAM with the CPU, thereby realizing various functions. The support information providing device 1 may be composed of multiple electronic units. Functionally, the support information providing device 1 includes a level setting unit 11, a divided area extraction unit 12, a level correction unit 13, a path acquisition unit 14, and a providing unit 15.

[0016] The level setting unit 11 acquires unstable behavior information. The level setting unit 11 may acquire the unstable behavior information directly from each of the multiple vehicles V. The level setting unit 11 may acquire the unstable behavior information from a collection device that collects unstable behavior information from the multiple vehicles V.

[0017] The unstable behavior information includes location information of the vehicle V exhibiting unstable behavior different from that during normal driving. The unstable behavior different from that during normal driving may include, for example, the vehicle V colliding with a surrounding object, sudden deceleration, sudden large steering, activation of an airbag system installed in the vehicle V, activation of a collision prevention device installed in the vehicle V, etc.

[0018] The unstable behavior information may include, for example, identification information of the vehicle V, location information of the vehicle V (e.g., latitude and longitude information), time information, the operation status of the collision prevention device (alarm by the collision prevention device, deceleration by the collision prevention device), the operation status of the airbag system, the acceleration / deceleration of the vehicle V, the vehicle speed, the operation status of various applications related to the driving of the vehicle V, etc. Based on the unstable behavior information including this information, the level setting unit 11 may recognize the presence or absence of unstable behavior and the location where the unstable behavior occurred.

[0019] Here, the support information providing device 1 has set therein "regions" obtained by dividing the map information into a plurality of parts, and "divided areas" obtained by further dividing the divided regions into a plurality of parts. In other words, a region is made up of a plurality of divided areas. Furthermore, the map information is made up of a plurality of regions. As an example, a region may be an area of ​​10 km square. As an example, a divided area may be an area of ​​250 m square.

[0020] The level setting unit 11 sets a near-accident level for each of the multiple divided areas based on the unstable behavior information. More specifically, the level setting unit 11 calculates the number of unstable behaviors, which is the number of times the vehicle V exhibited unstable behavior, for each of the multiple divided areas in each region based on the unstable behavior information. The level setting unit 11 can calculate the number of unstable behaviors for each divided area based on the location information, included in the unstable behavior information, where the vehicle V exhibited unstable behavior. The number of unstable behaviors may be the number of times the vehicle V exhibited unstable behavior within a predetermined period. The level setting unit 11 sets a near-accident level for each divided area based on the number of unstable behaviors calculated for each divided area.

[0021] Furthermore, when setting the near-accident level, the level setting unit 11 sets a near-accident level for each divided area within a region individually for each of the multiple regions. The level setting unit 11 sets a near-accident level for each divided area within the region based on the relative relationship between the numbers of unstable behaviors in the multiple divided areas within the region so that the more unstable behaviors there are in the region, the higher the near-accident level there is in the divided area within the region.

[0022] For example, assume that the near-miss level is set to one of a low level, a medium level, and a high level. The low level, the medium level, and the high level indicate the likelihood of a near-miss event occurring in that order. For example, when setting near-miss levels for each divided area in a first region, the level setting unit 11 sets a high level for a divided area in the first region that has a relatively high number of unstable behaviors, a low level for a divided area in the first region that has a relatively low number of unstable behaviors, and a medium level for other divided areas in the first region. When setting near-miss levels for each divided area in a second region different from the first region, the level setting unit 11 sets a high level for a divided area in the second region that has a relatively high number of unstable behaviors, a low level for a divided area in the second region that has a relatively low number of unstable behaviors, and a medium level for other divided areas in the second region. In other words, the near-miss level setting for the first region and the near-miss level setting for the second region are not related to each other. In this way, the level setting unit 11 sets a near-miss level for each divided area for each of a plurality of regions.

[0023] The level setting unit 11 may set the near-miss level using at least the number of unstable behaviors. The level setting unit 11 may set the near-miss level taking into consideration information other than the number of unstable behaviors. The level setting unit 11 may set the near-miss level using, for example, an AI (Artificial Intelligence) estimation model. For example, a kernel density estimation algorithm may be used to set the near-miss level.

[0024] The divided area extraction unit 12 extracts divided areas that are adjacent to each other across a boundary between the regions. For example, as shown in FIG. 2, regions A and B are adjacent to each other. The boundary between regions A and B is defined as boundary K. The divided area extraction unit 12 extracts divided area A1 of region A and divided area B1 of region B, which are adjacent to each other across boundary K. The divided area extraction unit 12 extracts divided area A1 and divided area B1 as a pair. Similar to the extraction of divided area A1 and divided area B1, the divided area extraction unit 12 extracts a pair of divided areas that are adjacent to each other across boundary K.

[0025] The level correction unit 13 corrects at least one of the near-accident levels of the sectional areas extracted by the sectional area extraction unit 12. Here, the level correction unit 13 corrects the near-accident level of at least one of a pair of sectional areas adjacent to each other across a boundary extracted by the sectional area extraction unit 12. More specifically, the level correction unit 13 corrects the near-accident levels so that the magnitude relationship between the near-accident levels of the sectional areas extracted by the sectional area extraction unit 12 matches the magnitude relationship between the numbers of unstable behavior cases of the sectional areas extracted by the sectional area extraction unit 12.

[0026] Here, matching the magnitude relationship between near-miss levels with respect to the magnitude relationship between the numbers of unstable behaviors (the magnitude relationship between the number values) means, for example, if one divided area has a higher number of unstable behaviors than the other divided area, making the near-miss level for the one divided area higher than the other divided area. Also, matching the magnitude relationship between the number of unstable behaviors with the magnitude relationship between near-miss levels means, for example, if the number of unstable behaviors in one divided area and the number of unstable behaviors in the other divided area are the same (almost the same) as each other, making the near-miss level for the one divided area the same (almost the same) as each other. Note that matching the magnitude relationship between near-miss levels with respect to the magnitude relationship between the numbers of unstable behaviors is not limited to completely matching the relationship between the two, but also includes reducing the inconsistency between the relationship between the two.

[0027] For example, in the example shown in FIG. 2, suppose that the level setting unit 11 sets the near-accident level for the divided area A1 to "high level" and the near-accident level for the divided area B1 to "low level." Furthermore, suppose that the occurrence of unstable behavior in the divided areas A1 and B1 is similar, and the number of unstable behaviors is also approximately the same. In this case, the level correction unit 13 corrects the near-accident levels so that the magnitude relationship between the near-accident levels for the divided areas A1 and B1 matches, based on the relative magnitude relationship between the numbers of unstable behaviors for the divided areas A1 and B1.

[0028] Here, the number of unstable behaviors in the divided area A1 and the number of unstable behaviors in the divided area B1 are the same (almost the same). Therefore, the level correction unit 13 corrects at least one of the near-accident levels of the divided area A1 and the divided area B1 so that the near-accident levels of the divided area A1 and the divided area B1 are the same. For example, as a first method, the level correction unit 13 can make the near-accident levels of the divided area A1 and the divided area B1 the same by correcting the near-accident level of the divided area B1, which has a low level, to a "high level." For example, as a second method, the level correction unit 13 can make the near-accident levels of the divided area A1 and the divided area B1 the same by correcting the near-accident level of the divided area A1, which has a high level, to a "low level." For example, as a third method, the level correction unit 13 can make the near-miss levels of the divided area A1 and the divided area B1 the same by correcting the near-miss level of the divided area A1, which has a high level, to a "medium level" and correcting the near-miss level of the divided area B1, which has a low level, to a "medium level."

[0029] As described above, the level setting unit 11 sets a near-accident level individually for each of a plurality of regions. Even if the divided area A1 of region A and the divided area B1 of region B, which are adjacent to each other, have similar numbers of unstable behaviors, the near-accident levels may differ. If there is a discrepancy between the relative magnitude of the numbers of unstable behaviors and the relative magnitude of the near-accident levels for the divided areas adjacent to each other across the boundary between the regions, the level correction unit 13 corrects the near-accident levels so as to eliminate (reduce) this discrepancy.

[0030] Furthermore, as a result of correcting the near-accident level as described above, there may be a sudden change in the near-accident level by more than a predetermined threshold between the divided area extracted by the divided area extraction unit 12 and the surrounding divided area, which is the divided area around it. In this case, the level correction unit 13 corrects the near-accident level of the surrounding divided area to mitigate this sudden change. For example, the level correction unit 13 may correct the near-accident level of the surrounding divided area so that it is a level between the near-accident level of the divided area extracted by the divided area extraction unit 12 changed using the magnitude relationship described above and the near-accident level of the surrounding divided area.

[0031] The route acquisition unit 14 acquires a planned driving route along which the vehicle V is to travel. The route acquisition unit 14 can acquire the driving route from the vehicle V. For example, the route acquisition unit 14 may acquire a driving route set by a navigation system installed in the vehicle V. For example, if the vehicle V is an autonomous vehicle, the route acquisition unit 14 may acquire a driving route generated by an autonomous driving device of the vehicle V.

[0032] The providing unit 15 provides the near-accident level set by the level setting unit 11 to the driving assistance device 100 of the vehicle V. When the near-accident level has been corrected by the level correcting unit 13, the providing unit 15 provides the corrected near-accident level to the driving assistance device 100 of the vehicle V. Furthermore, the providing unit 15 provides the vehicle V with a corresponding near-accident level depending on the region or divided area in which the vehicle V is traveling.

[0033] For example, when the level correction unit 13 corrects the near-miss levels so that the magnitude relationship between the near-miss levels matches the magnitude relationship between the numbers of unstable behaviors, the vehicle V may travel across an area including the divided area where the correction was made and another area adjacent to the divided area where the correction was made, or may not travel across these areas. Therefore, when the level correction unit 13 corrects the near-miss levels so that the magnitude relationship between the near-miss levels matches the magnitude relationship between the numbers of unstable behaviors, the provision unit 15 determines, based on the travel route acquired by the route acquisition unit 14, whether the vehicle V will travel across an area including the divided area where the correction was made and another area adjacent to the divided area where the correction was made. When it is determined that the vehicle V will travel across these areas, the provision unit 15 may be configured to provide the corrected near-miss levels to the driving assistance device 100 of the vehicle V. On the other hand, if the providing unit 15 determines that the vehicle V will not be traveling across these areas, the providing unit 15 may be configured to provide the uncorrected near-miss level (the near-miss level set by the level setting unit 11) to the driving assistance device 100 of the vehicle V.

[0034] Here, cases in which vehicle V travels across an area including a divided area in which a correction has been made and another area adjacent to the divided area in which a correction has been made may include both cases in which vehicle V leaves the area including the divided area in which the near miss level has been corrected and cases in which vehicle V enters the area including the divided area in which the near miss level has been corrected.

[0035] Next, the setting and correction of the near-accident level performed in the support information providing device 1 and the flow of the near-accident level provision process will be described. When the process shown in FIG. 3 reaches an end, the process is restarted from the start after a predetermined time. Furthermore, the process of providing the near-accident level in S108 is not limited to being performed after the process of S107, and may be performed at a timing different from S101 to S107. As shown in FIG. 3, the level setting unit 11 acquires unstable behavior information (S101). Next, the level setting unit 11 sets a near-accident level for each of a plurality of sectional areas based on the unstable behavior information (S102). The sectional area extraction unit 12 extracts sectional areas adjacent to each other across a boundary between regions (S103).

[0036] The level correction unit 13 determines whether or not correction of the near-accident levels of the divided areas extracted by the divided area extraction unit 12 that are adjacent to each other across a boundary between regions is necessary (S104). Note that correction is necessary when the magnitude relationship between the near-accident levels of the divided areas extracted by the divided area extraction unit 12 does not match the magnitude relationship between the numbers of unstable behaviors of the divided areas extracted by the divided area extraction unit 12. When the magnitude relationship between the near-accident levels does not match the magnitude relationship between the numbers of unstable behaviors (S104: YES), the level correction unit 13 determines that correction is necessary. On the other hand, when the magnitude relationship between the near-accident levels matches the magnitude relationship between the numbers of unstable behaviors (S104: NO), the level correction unit 13 determines that correction is not necessary.

[0037] If it is determined that correction of the near-miss level is necessary (S104: YES), the level correction unit 13 corrects the near-miss level so that the magnitude relationship between the near-miss levels matches the magnitude relationship between the numbers of unstable behaviors (S105). Correcting the near-miss level in S105 may cause a sudden change in the near-miss level between the sectional area extracted by the sectional area extraction unit 12 and its surrounding peripheral sectional areas. Therefore, the level correction unit 13 determines whether or not the near-miss level of the surrounding sectional area needs to be corrected so as to mitigate the sudden change (S106). Specifically, the level correction unit 13 determines that correction is necessary if the near-miss level between the sectional area extracted by the sectional area extraction unit 12 and its surrounding peripheral sectional areas suddenly changes by more than a predetermined threshold (S106: YES). On the other hand, if the near-miss level does not change suddenly by more than a predetermined threshold between the divided area extracted by the divided area extraction unit 12 and the surrounding divided areas (S106: NO), the level correction unit 13 determines that correction is necessary.

[0038] If it is determined that correction of the near-miss level is necessary (S106: YES), the level correction unit 13 corrects the near-miss level of the surrounding divided area so as to mitigate sudden changes (S107). The provision unit 15 provides the near-miss level set by the level setting unit 11 or, if correction has been made by the level correction unit 13, the corrected near-miss level to the driving assistance device 100 of the vehicle V (S108).

[0039] For example, if the number of unstable behaviors in adjacent divided areas separated by a regional boundary is approximately the same, ideally the near-miss levels should also be approximately the same. However, as described above, the near-miss levels may differ between adjacent divided areas separated by a regional boundary, even though the number of unstable behaviors in adjacent divided areas is approximately the same. In this case, the near-miss levels differ between adjacent divided areas, and the content of the driving assistance for vehicle V provided by driving assistance device 100 also changes based on the near-miss levels. As a result, the driver of vehicle V may feel uncomfortable with the change in the content of the driving assistance for vehicle V, even though the adjacent divided areas feel that the environments in terms of the likelihood of near-miss events occurring are similar.

[0040] Therefore, in the support information providing device 1 according to this embodiment, the level correction unit 13 corrects the near-accident levels of divided areas that are adjacent to each other across a boundary between regions. Here, the level correction unit 13 corrects the near-accident levels so that the magnitude relationship between the near-accident levels of the divided areas matches the magnitude relationship between the numbers of unstable behaviors of the divided areas. By correcting the near-accident levels in this way, the discomfort felt by the driver of the vehicle V can be reduced. In this way, the support information providing device 1 can more appropriately set the near-accident level and provide it to the driving support device 100 of the vehicle V.

[0041] Correcting the near-accident level using the degree of correlation between the numbers of unstable behaviors may result in a sudden change in the near-accident level between the divided area extracted by the divided area extraction unit 12 and the surrounding divided areas. If this sudden change is equal to or greater than a predetermined threshold, the level correction unit 13 corrects the near-accident level of the surrounding divided areas so as to mitigate the sudden change. This allows the support information providing device 1 to suppress a sudden change in the near-accident level between divided areas. Therefore, a sudden change in the assistance content of the driving assistance provided by the driving assistance device 100 based on the near-accident level is suppressed, and the discomfort felt by the driver of the vehicle V due to a sudden change in the assistance content can be suppressed.

[0042] The providing unit 15 determines whether the vehicle V will travel across an area including a divided area for which correction has been made by the level correcting unit 13 based on the relative degree of unstable behavior counts, and another area adjacent to the divided area for which the correction has been made. When the vehicle V travels across these areas, the providing unit 15 provides the corrected near-miss level to the driving assistance device 100 of the vehicle V. When the vehicle V does not travel across these areas, the providing unit 15 provides the uncorrected near-miss level to the driving assistance device 100 of the vehicle V. For example, when the vehicle V does not travel across such areas, even if the near-miss levels of adjacent divided areas separated by a boundary between the areas are different, the occupants of the vehicle V will not notice these differences. Therefore, by providing the corrected near-miss level to the driving assistance device 100 of the vehicle V when the vehicle V travels across such areas, the support information providing device 1 can provide the corrected near-miss level in a more appropriate situation in which the corrected near-miss level can be used.

[0043] Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above embodiments. For example, when providing a near-accident level, the providing unit 15 may provide both the pre-correction near-accident level and the post-correction near-accident level to the driving assistance device 100 of the vehicle V. The driving assistance device 100 may be configured to select, by itself, one of the provided pre-correction and post-correction near-accident levels to be used for controlling driving assistance.

[0044] At least some of the embodiments and various modified examples described above may be combined in any manner. [Explanation of symbols]

[0045] 1...assistance information providing device, 11...level setting unit, 12...divided area extraction unit, 13...level correction unit, 14...route acquisition unit, 15...providing unit, A, B...area, A1, B1...divided area, K...boundary, 100...driving assistance device, V...vehicle.

Claims

1. An assistance information providing device that provides a near miss level indicating the likelihood of a near miss event occurring in a vehicle to a driving assistance device of the vehicle, a level setting unit that divides map information into a plurality of regions, and further divides the divided regions into a plurality of areas, and sets the near miss level for each of the divided areas based on unstable behavior information including position information where the vehicle exhibits unstable behavior different from that during normal driving; a divided area extraction unit that extracts the divided areas adjacent to each other across a boundary between the regions; a level correction unit that corrects at least one of the near-miss levels of the divided areas extracted by the divided area extraction unit; A providing unit that provides the near-miss level set by the level setting unit or the near-miss level corrected by the level correction unit to the driving assistance device; Equipped with The level setting unit The near-miss level is set for each of the divided areas within each of the plurality of regions, a number of unstable behaviors, which is the number of times the vehicle exhibited unstable behavior, is calculated for each of the plurality of divided areas within the region, and based on the relative magnitude of the number of unstable behaviors for the plurality of divided areas within the region, a near-miss level is set for each of the plurality of divided areas within the region such that the greater the number of unstable behaviors within the region, the higher the near-miss level; The level correction unit corrects the near-miss levels so that the magnitude relationship between the near-miss levels of the divided areas extracted by the divided area extraction unit matches the magnitude relationship between the numbers of unstable behaviors of the divided areas extracted by the divided area extraction unit.

2. 2. The support information providing device according to claim 1, wherein, when the correction of the near-miss level causes a sudden change of a predetermined threshold or more between the divided area extracted by the divided area extraction unit and a surrounding divided area that is the divided area surrounding it, the level correction unit corrects the near-miss level of the surrounding divided area so as to mitigate the sudden change.

3. A route acquisition unit that acquires a planned travel route for the vehicle is further provided, The providing unit When the near-miss level is corrected by the level correction unit so that the magnitude relationship between the near-miss levels coincides with the magnitude relationship between the unstable behavior counts, determining, based on the travel route, whether the vehicle will travel across the region including the divided area for which the correction has been made and another region adjacent to the divided area for which the correction has been made; 3. The support information providing device according to claim 1, wherein when a vehicle is traveling across these areas, the corrected near miss level is provided to the driving support device of the vehicle, and when the vehicle is not traveling across these areas, the uncorrected near miss level is provided to the driving support device of the vehicle.

Images