公开(公告)号：US20170004707A1

公开(公告)日：2017-01-05

申请号：US15142336

申请日：2016-04-29

Applicant: HERE Global B.V.

Inventor： James Fowe ,  Joe Ciprian ,  Piotr Knap ,  Yingzhou Yu

IPC: G08G1/01 ,  G01C21/34 ,  G08G1/052

CPC classification number: G08G1/0133 ,  G01C21/3415 ,  G01C21/3492 ,  G01C21/3658 ,  G01C21/3691 ,  G01C21/3694 ,  G08G1/0112 ,  G08G1/0129 ,  G08G1/0141 ,  G08G1/0145 ,  G08G1/052 ,  G08G1/096775 ,  G08G1/096844 ,  G08G1/167

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。

公开(公告)号：US11295615B2

公开(公告)日：2022-04-05

申请号：US16662468

申请日：2019-10-24

Applicant: HERE Global B.V.

Inventor： Jingwei Xu ,  Pradeep Maddineni ,  Bruce Bernhardt ,  Yuxin Guan ,  Zongyi Xuan ,  Weimin Huang ,  Jennifer Carter ,  Casey Bennett ,  Yingzhou Yu ,  Mark Timms

IPC: G08B21/00 ,  G08G1/0967 ,  G08G1/01

Abstract: A method for providing alerts for a traffic slowdown includes receiving location data for at least a first vehicle of a plurality of vehicles, map matching the location data for at least the first vehicle to a road network, calculating an approaching speed for at least the first vehicle at a first time, calculating a final speed for at least the first vehicle at a second time, and generating a traffic slowdown message in response to the approaching speed and the final speed. The traffic slowdown message includes at least one characteristic of the traffic slowdown.

公开(公告)号：US09911327B2

公开(公告)日：2018-03-06

申请号：US15142336

申请日：2016-04-29

Applicant: HERE Global B.V.

Inventor： James Fowe ,  Joe Ciprian ,  Piotr Knap ,  Yingzhou Yu

IPC: G08G1/01 ,  G08G1/052 ,  G01C21/34 ,  G01C21/36 ,  G08G1/0967 ,  G08G1/0968 ,  G08G1/16

CPC classification number: G08G1/0133 ,  G01C21/3415 ,  G01C21/3492 ,  G01C21/3658 ,  G01C21/3691 ,  G01C21/3694 ,  G08G1/0112 ,  G08G1/0129 ,  G08G1/0141 ,  G08G1/0145 ,  G08G1/052 ,  G08G1/096775 ,  G08G1/096844 ,  G08G1/167

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.