Method, apparatus, and system for automatic verification of road closure reports

    公开(公告)号:US11721206B2

    公开(公告)日:2023-08-08

    申请号:US17240625

    申请日:2021-04-26

    Inventor: Omer Mubarek

    CPC classification number: G08G1/0133 G08G1/0112 G08G1/052

    Abstract: An approach is provided for automatically verifying a road closure report. The approach, for example, involves determining one or more features of probe data collected from a plurality of vehicles traveling on a connected set of road links of a closure link graph. The closure link graph, for instance, comprises a road link indicated by the road closure report, one or more upstream links from the road link, one or more downstream links from the road link, or a combination thereof. The approach also involves evaluating a closure probability of the road link indicated by the road closure report based on the one or more features. The road closure report is then automatically verified based on the closure probability.

    Method, apparatus, and system for automatic road closure detection

    公开(公告)号:US11663912B2

    公开(公告)日:2023-05-30

    申请号:US17102044

    申请日:2020-11-23

    CPC classification number: G08G1/096766 G01C21/3694 G06F16/29

    Abstract: An approach is provided for automatic road closure detection. The approach, for example, involves designating a dynamic time window comprising one or more time epochs ending before a current time epoch. The approach also involves retrieving a first set of probe data collected from a road link during the dynamic time window. The approach further involves adjusting a size of the dynamic time window by adding or removing another time epoch ending before the current time epoch until at least one criterion related to the probe data, the dynamic time window, or a combination thereof is met. The approach further involves extracting a plurality of features from the first set of probe data, from a second set of probe data collected from the road link during the current time epoch, or a combination thereof. The approach then involves detecting a closure status of the road link based on the plurality of features.

    Method, apparatus, and system for automatic closure verification using multiple possible vehicle paths

    公开(公告)号:US11348452B2

    公开(公告)日:2022-05-31

    申请号:US16778835

    申请日:2020-01-31

    Abstract: An approach is provided for automatically verifying a road closure using multiple possible vehicle paths between two probe points. The approach involves, for example, processing probe data to determine a possible path of a vehicle over a road graph, wherein the road graph represents a road link and one or more other road links entering or exiting the road link. The approach also involves calculating a path probability for the possible path, wherein the path probability indicates a likelihood that the possible path is a true path of the vehicle over the road graph. The approach further involves assigning a weighted vehicle count to the road link and/or one or more other road links contained in the possible path, wherein the weighted vehicle count is based on the path probability. The approach further involves detecting a traffic anomaly occurring on the road link based on the weighted vehicle count.

    Method and apparatus for detecting a vehicle parking, stopping, or standing location

    公开(公告)号:US10713943B1

    公开(公告)日:2020-07-14

    申请号:US16414486

    申请日:2019-05-16

    Abstract: An approach is provided for automatic detection of vehicle parking, stopping, and/or standing locations (e.g., parking lots, alleys, loading zones, standing zones, etc.). The approach, for example, involves collecting probe data transmitted from a plurality of vehicles traveling on a road segment. The approach also involves processing the probe data to determine a vehicle behavior indicating a vehicle parking location, a vehicle stopping location, a vehicle standing location, or a combination thereof. The approach further involves flagging the road segment as being associated with the vehicle parking location, the vehicle stopping location, the vehicle standing location, or a combination thereof based on the vehicle behavior to update a geographic database.

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