Road segments with multi-modal traffic patterns

    公开(公告)号:US10401173B2

    公开(公告)日:2019-09-03

    申请号:US15817415

    申请日:2017-11-20

    Inventor: James Fowe

    Abstract: A method and system include identification of road segments with multi-modal traffic patterns. A server receives speed data for a link. The server calculates a quantity of speed clusters from the speed data. The server calculates speed profiles for the quantity of speed clusters. The server identifies one or more modes of transportation for the link based on the quantity of the speed clusters and the speed profiles for the quantity of speed clusters.

    REVERSIBLE LANE ACTIVE DIRECTION DETECTION BASED ON GNSS PROBE DATA

    公开(公告)号:US20180357890A1

    公开(公告)日:2018-12-13

    申请号:US15618482

    申请日:2017-06-09

    Abstract: In an example embodiment, a plurality of sequences of instances of probe data are received. Each sequence of instances of probe data is captured and provided by a probe apparatus comprising a plurality of sensors and is onboard a vehicle. An instance of probe data comprises location information indicating a location of the corresponding probe apparatus and the instances are ordered by capture time to form the sequence of instances. A travel direction of each probe apparatus is determined based on the corresponding sequence. Each probe apparatus is matched to a lane of a road segment based on the determined travel direction and a predetermined vehicle lane pattern. The vehicle lane pattern comprises at least one reversible lane. Probe apparatuses matched to the at least one reversible lane are identified. An active direction is determined based on the number of identified probe apparatuses corresponding to each travel direction.

    AUTOMATIC DETECTION OF LANE CLOSURES USING PROBE DATA

    公开(公告)号:US20180158325A1

    公开(公告)日:2018-06-07

    申请号:US15370311

    申请日:2016-12-06

    Abstract: A plurality of instances of probe data are received. Each instance is received from a probe apparatus of a plurality of probe apparatuses each comprising a plurality of sensors and being onboard a vehicle. An instance comprises location information indicating a location of the corresponding probe apparatus. For each of one or more instances, a distance parameter is determined based on the location information and a road segment corresponding to the location. A set of distance parameters is defined based on the distance parameter determined for each of the one or more instances. The set of distance parameters is analyzed to identify clusters of probe data. The number of clusters identified is determined and compared to a historical number of clusters. If the number of clusters identified is less than the historical number of clusters, it is determined that there is a lane closure corresponding to the road segment.

    Traffic classification based on spatial neighbor model

    公开(公告)号:US09672735B2

    公开(公告)日:2017-06-06

    申请号:US15162001

    申请日:2016-05-23

    Inventor: James Fowe

    Abstract: Systems, methods, and apparatuses are described for estimating traffic conditions on road segments when no real time traffic data is available. A computing device may access a road topology comprising links from a geographic database. One of the links is selected from road topology. The computing device identifies a subset of the road topology having neighboring links that have an influential conditional probability on the selected link. In one example, the subset of the neighboring links includes parent links for the selected link, child links for the selected link, and parents of child links of the selected link. The computing device generates a traffic estimation model for the selected link using the subset of road topology and historical traffic data for the neighboring links.

    Method and apparatus for providing state classification for a travel segment with multi-modal speed profiles
    55.
    发明授权
    Method and apparatus for providing state classification for a travel segment with multi-modal speed profiles 有权
    用于为具有多模态速度曲线的行程段提供状态分类的方法和装置

    公开(公告)号:US09558660B1

    公开(公告)日:2017-01-31

    申请号:US14815606

    申请日:2015-07-31

    Abstract: An approach is provided for state classification for a travel segment with multi-modal speed profiles. A traffic processing platform processes and/or facilitates a processing of probe data associated with at least one travel segment to determine that probe data indicates a plurality of speed profiles. The plurality of speed profiles represent one or more observed clusters of speed states. The traffic processing platform also determine that the at least one travel segment exhibits a multi-modality with respect to travel speed based, at least in part, on the plurality of speed profiles. The traffic processing platform then determines at least one likely sequence of speed states for traversing the at least one travel segment based, at least in part, on the one or more observed clusters of speed states and state transition probability information, wherein the state transition probability information represents one or more probabilities for transitioning among the plurality of speed states and causes, at least in part, a classification of at least one hidden state of the at least one travel segment based, at least in part, on the at least one likely sequence of speed states.

    Abstract translation: 为具有多模式速度曲线的行程段提供了一种用于状态分类的方法。 交通处理平台处理和/或促进与至少一个旅行段相关联的探测数据的处理,以确定探测数据指示多个速度分布。 多个速度曲线表示一个或多个观察到的速度状态的群集。 交通处理平台还确定至少部分地基于多个速度曲线,所述至少一个行驶段相对于行驶速度呈现多模态。 交通处理平台至少部分地基于速度状态和状态转移概率信息的一个或多个观察到的群集来确定用于遍历至少一个旅行段的至少一个可能的速度状态序列,其中状态转移概率 信息表示在多个速度状态之间转换的一个或多个概率,并且至少部分地至少部分地基于所述至少一个可能性对至少一个行进段的至少一个隐藏状态进行分类 速度状态顺序。

    METHOD AND APPARATUS FOR IDENTIFYING A SPLIT LANE TRAFFIC LOCATION
    56.
    发明申请
    METHOD AND APPARATUS FOR IDENTIFYING A SPLIT LANE TRAFFIC LOCATION 有权
    用于识别分离区域交通位置的方法和装置

    公开(公告)号:US20170004707A1

    公开(公告)日:2017-01-05

    申请号:US15142336

    申请日:2016-04-29

    Abstract: A method, apparatus and computer program product are provided to identify a split lane traffic location. In a method, a distribution of speeds associated with a plurality of historical probe points representative of travel along a road segment upstream of diverging downstream road segments is determined for each of a plurality of epochs. For each epoch, the distribution is evaluated to cluster the speeds associated with the plurality of historical probe points during the respective epoch into higher and lower speed clusters. For each epoch, it is determined whether a bi-modality condition exists upstream of the diverging downstream road segments based upon a relationship between the higher speed and the lower speed during the respective epoch. A split lane traffic location is then identified based upon a bi-modality frequency with which a bi-modality condition is determined from the historical probe points associated with the plurality of epochs.

    Abstract translation: 提供了一种方法,装置和计算机程序产品来识别分裂车道交通位置。 在一种方法中,对于多个历元中的每一个确定与多个历史探测点相关联的速度分布,其代表沿着发散的下游道路段上游的道路段的行驶。 对于每个时期,评估分布以将在相应时期期间与多个历史探测点相关联的速度聚集成更高和更低速度的群集。 对于每个时期,基于在各个历元期间的较高速度和较低速度之间的关系来确定双向模态条件是否存在于发散的下游道路段的上游。 然后基于从与多个时期相关联的历史探测点确定双模态条件的双模态频率来识别分裂车道交通位置。

    Monitoring and visualizing traffic surprises
    57.
    发明授权
    Monitoring and visualizing traffic surprises 有权
    监控和可视化交通意外

    公开(公告)号:US09518837B2

    公开(公告)日:2016-12-13

    申请号:US14558401

    申请日:2014-12-02

    Inventor: James Fowe

    Abstract: Systems, methods, and apparatuses are described for monitoring and visualizing traffic surprises. Traffic data is received for a region of interest comprising one or more routes. A surprise factor may be calculated for one or more routes in the region of interest based on a ratio of historical traffic data and real-time traffic data. A comparison may be performed of the surprise factor to at least one threshold. A surprise traffic message may be generated based on the comparison.

    Abstract translation: 描述了用于监视和可视化交通意外的系统,方法和设备。 针对包括一个或多个路线的感兴趣区域接收交通数据。 可以基于历史交通数据和实时交通数据的比率来计算感兴趣区域中的一条或多条路线的突发因素。 可以将惊奇因素进行至少一个阈值的比较。 可以基于比较来产生惊奇的交通信息。

    Dynamic Location Referencing Strands
    58.
    发明申请
    Dynamic Location Referencing Strands 有权
    动态位置参考线

    公开(公告)号:US20160275786A1

    公开(公告)日:2016-09-22

    申请号:US14663134

    申请日:2015-03-19

    Inventor: James Fowe

    Abstract: Systems and methods are described for referencing road strands. Speed data for a set of adjoining road segments is identified. Using at least one of the adjoining road segments, a strand database for is accessed to retrieve a predetermined strand of road segments. An aggregate speed value for the predetermined strand of road segments is calculated based on the speed data for the set of adjoining road segments represented by the predetermined strand of road segments. The aggregate speed value is provided as a representative of traffic on the set of adjoining road segments represented by the predetermined strand of road segments.

    Abstract translation: 描述了用于参考路线的系统和方法。 识别一组相邻路段的速度数据。 使用相邻的道路段中的至少一个,可以访问线数据库以检索预定的道路段。 基于由预定的路段段表示的相邻路段的组的速度数据,计算预定的道路段的线的总速度值。 总速度值作为代表在由预定的路段段表示的相邻路段的一组交通的代表。

    Traffic classification based on spatial neighbor model
    59.
    发明授权
    Traffic classification based on spatial neighbor model 有权
    基于空间邻域模型的流量分类

    公开(公告)号:US09349285B1

    公开(公告)日:2016-05-24

    申请号:US14556683

    申请日:2014-12-01

    Inventor: James Fowe

    Abstract: Systems, methods, and apparatuses are described for estimating traffic conditions on road segments when no real time traffic data is available. A computing device may access a road topology comprising links from a geographic database. One of the links is selected from road topology. The computing device identifies a subset of the road topology having neighboring links that have an influentual conditional probability on the selected link. In one example, the subset of the neighboring links includes parent links for the selected link, child links for the selected link, and parents of child links of the selected link. The computing device generates a traffic estimation model for the selected link using the subset of road topology and historical traffic data for the neighboring links.

    Abstract translation: 描述了当没有实时交通数据可用时估计道路段上的交通状况的系统,方法和装置。 计算设备可以访问包括来自地理数据库的链路的道路拓扑。 从道路拓扑中选择一个链接。 计算设备识别具有在所选链路上具有进入条件概率的相邻链路的道路拓扑的子集。 在一个示例中,相邻链接的子集包括用于所选链接的父链接,所选链接的子链接以及所选链接的子链接的父节点。 计算设备使用道路拓扑的子集和相邻链路的历史流量数据为所选择的链路生成流量估计模型。

    Method and apparatus for using pedestrian probe data for ridesharing services

    公开(公告)号:US12175397B2

    公开(公告)日:2024-12-24

    申请号:US17369599

    申请日:2021-07-07

    Abstract: An approach is provided for using pedestrian probe data for ridesharing. The approach involves, for example, receiving pedestrian probe data from a search zone associated with a designated location. The pedestrian probe data is collected, for instance, from one or more location sensors of at least one device associated with at least one pedestrian. The approach also involves processing the pedestrian probe data to determine one or more pedestrian paths terminating at the designated location. The approach further involves identifying at least one common origin, at least one common destination, or a combination thereof of the one or more pedestrian paths and providing the least one common origin, the at least one common destination, or a combination thereof as an output.

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