Detection and estimation of variable speed signs

    公开(公告)号:US10553110B2

    公开(公告)日:2020-02-04

    申请号:US15631320

    申请日:2017-06-23

    Abstract: Systems, methods, and apparatuses are disclosed for predicting or estimating the value of a variable speed sign (VSS). Probe data is received from multiple vehicles associated with a road segment. Location values are derived from the probe data. Center distance values are calculated based on the location values and the road segment. Clusters are derived from the probe data. Center distance values are grouped according to the respective clusters and a lane is assigned to at least one cluster based on the center distance values. The speed of the cluster predicts or estimates the corresponding lane of the VSS.

    Ride Sharing Navigation
    46.
    发明申请
    Ride Sharing Navigation 审中-公开
    骑行共享导航

    公开(公告)号:US20160349067A1

    公开(公告)日:2016-12-01

    申请号:US14725767

    申请日:2015-05-29

    Abstract: A first destination and a first route strategy are received from a first device. The first route strategy includes a first rider destination hierarchy for a ride sharing algorithm. A second destination and a second route strategy is received from a second device. The second route strategy includes a second rider destination hierarchy for a ride sharing algorithm. A route is generated to the first destination and the second destination based on the rider destination hierarchies specified by the route strategies.

    Abstract translation: 从第一设备接收第一目的地和第一路由策略。 第一路线策略包括用于乘坐共享算法的第一乘客目的地层级。 从第二设备接收第二目的地和第二路由策略。 第二路线策略包括用于乘坐共享算法的第二乘客目的地层级。 基于由路由策略指定的车手目的地层次结构,向第一目的地和第二目的地生成路线。

    METHOD AND APPARATUS FOR CREATING AN ORIGIN-DESTINATION MATRIX FROM PROBE TRAJECTORY DATA
    47.
    发明申请
    METHOD AND APPARATUS FOR CREATING AN ORIGIN-DESTINATION MATRIX FROM PROBE TRAJECTORY DATA 有权
    用于从探测数据中创建原始目的地矩阵的方法和装置

    公开(公告)号:US20150300835A1

    公开(公告)日:2015-10-22

    申请号:US14256751

    申请日:2014-04-18

    Abstract: An approach is provided for creating an origin-destination matrix from probe trajectory data. The approach includes receiving probe trajectory data, wherein the probe trajectory data is associated with at least one subset of a plurality of travel nodes. The approach further includes processing and/or facilitating a processing of the probe trajectory data to construct one or more microscopic origin-destination matrices, wherein the at least one microscopic origin-destination matrix represents one or more preferred travel paths through the subset of the plurality of travel nodes. The approach also involves causing, at least in part, an aggregation of the one or more microscopic origin-destination matrices to construct at least one aggregated origin-destination matrix to represent the plurality of travel nodes.

    Abstract translation: 提供了一种用于从探测轨迹数据创建起始 - 目的地矩阵的方法。 所述方法包括接收探测轨迹数据,其中所述探测轨迹数据与多个行进节点的至少一个子集相关联。 该方法还包括处理和/或促进探针轨迹数据的处理以构建一个或多个微观起始 - 目的地矩阵,其中所述至少一个微观起点 - 目的地矩阵表示通过多个子集的一个或多个优选的行进路径 的旅行节点。 该方法还包括至少部分地导致一个或多个微观起始 - 目的地矩阵的聚集以构建至少一个聚集的起始 - 目的地矩阵来表示多个旅行节点。

    METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR DETERMINING LANE CLOSURES ALONG A ROAD

    公开(公告)号:US20230196915A1

    公开(公告)日:2023-06-22

    申请号:US17645094

    申请日:2021-12-20

    Abstract: A method is provided for determining and verifying lane closures using lane-level map-matching to monitor all lanes of a road. Methods may include: receiving a plurality of probe data points, where the probe data points; map-matching the probe data points to one or more road segments; determining, for the probe data points, lanes of travel of the one or more road segments; determining a volume of traffic along the lanes of travel of the one or more road segments based on the lanes of travel of the one or more road segments determined for the probe data; determining an expected volume of traffic along the lanes of travel; and generating an indication of a lane closure in response to a volume of traffic along a first lane of travel of the one or more road segments being a predetermined amount below an expected volume of traffic.

    TRAFFIC PREDICTION AND ROUTING USING TRAIN MOVEMENT PATTERNS

    公开(公告)号:US20230194285A1

    公开(公告)日:2023-06-22

    申请号:US17556525

    申请日:2021-12-20

    CPC classification number: G01C21/3492 G01C21/3446 G01C21/3676 G06N3/02

    Abstract: A method and apparatus for calculating an estimated travel time and a method and apparatus for defining a model configured to estimate a travel time are provided. The method for estimating a travel time includes obtaining a movement pattern for a train, determining one or more predicted times when the train will be present at a train crossing where a road path and a train path intersect using the movement pattern, obtaining vehicle historical data including an average time for a vehicle to travel one or more road segments adjoining the train crossing, obtaining a start time, and calculating the travel time for the one or more road segments based on the vehicle historical data, the start time, and the predicted time when the train will be present at the train crossing.

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