Method, apparatus and computer program product for estimation of road traffic condition using traffic signal data

    公开(公告)号:US10181263B2

    公开(公告)日:2019-01-15

    申请号:US15363711

    申请日:2016-11-29

    Abstract: A method for improved traffic congestion estimation is provided using signal phase and timing data from traffic signals at intersections and probe data from vehicles traversing said intersections. An example method may include: identifying each of a plurality of paths through an intersection; identifying signal phase and timing data for each traffic light associated with each path through the intersection; receiving probe data for vehicles approaching or traversing the intersection; estimating a number of vehicles failing to traverse the intersection along a path through the intersection; estimating a congestion status of the path through the intersection based on the number of vehicles failing to traverse the intersection; and causing the congestion status to be provided to permit updating of a map to reflect the congestion status.

    Method, apparatus and computer program product for indexing traffic lanes for signal control and traffic flow management

    公开(公告)号:US10147316B2

    公开(公告)日:2018-12-04

    申请号:US15262288

    申请日:2016-09-12

    Abstract: A method is provided for identifying and indexing lanes of an intersection. Methods may include: determining a directionality for one or more lanes for each of two or more roadways proximate an intersection, where directionality is one of toward the intersection or away from the intersection; determining a bearing for each lane of the two or more roadways proximate the intersection, where the bearing includes a compass heading informed by the directionality; determining a lane position for each lane of the two or more roadways proximate the intersection; generating an order of the lanes using a hierarchy, where the hierarchy considers directionality first, bearing second, and lane position third; causing the generated order of the lanes to be stored in a memory, where the order of the lanes is associated with the intersection; and managing signal phase and timing of the intersection using the generated order of the lanes.

    METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR DEFINING A GEO-DEFENSE AREA RELATED TO PRESENCE OF A ROADWORKER ENTITY

    公开(公告)号:US20240378998A1

    公开(公告)日:2024-11-14

    申请号:US18314416

    申请日:2023-05-09

    Abstract: A method, apparatus and computer program product are provided for defining a geo-defense area related to presence of a roadworker entity. In this regard, a roadwork event related to a roadwork zone region of a road segment is identified based at least in part on one or more probe apparatuses traveling along the road segment. Furthermore, presence of at least one roadworker entity within the roadwork zone region is detected based at least in part on sensor data from the one or more probe apparatuses. Based at least on part on map data related to the roadwork zone region and location data related to the roadworker entity, a geo-defense area related to the roadworker entity is defined. Additionally, an indication of the geo-defense area is provided to one or more autonomous vehicles to facilitate navigation of the one or more autonomous vehicles along the road segment.

    METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR INDEXING TRAFFIC LANES FOR SIGNAL CONTROL AND TRAFFIC FLOW MANAGEMENT

    公开(公告)号:US20190073899A1

    公开(公告)日:2019-03-07

    申请号:US16180760

    申请日:2018-11-05

    CPC classification number: G08G1/0145 G08G1/07

    Abstract: A method is provided for identifying and indexing lanes of an intersection. Methods may include: determining a directionality for one or more lanes for each of two or more roadways proximate an intersection, where directionality is one of toward the intersection or away from the intersection; determining a bearing for each lane of the two or more roadways proximate the intersection, where the bearing includes a compass heading informed by the directionality; determining a lane position for each lane of the two or more roadways proximate the intersection; generating an order of the lanes using a hierarchy, where the hierarchy considers directionality first, bearing second, and lane position third; causing the generated order of the lanes to be stored in a memory, where the order of the lanes is associated with the intersection; and managing signal phase and timing of the intersection using the generated order of the lanes.

    METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR ESTIMATION OF ROAD TRAFFIC CONDITION USING TRAFFIC SIGNAL DATA

    公开(公告)号:US20180151064A1

    公开(公告)日:2018-05-31

    申请号:US15363711

    申请日:2016-11-29

    Abstract: A method for improved traffic congestion estimation is provided using signal phase and timing data from traffic signals at intersections and probe data from vehicles traversing said intersections. An example method may include: identifying each of a plurality of paths through an intersection; identifying signal phase and timing data for each traffic light associated with each path through the intersection; receiving probe data for vehicles approaching or traversing the intersection; estimating a number of vehicles failing to traverse the intersection along a path through the intersection; estimating a congestion status of the path through the intersection based on the number of vehicles failing to traverse the intersection; and causing the congestion status to be provided to permit updating of a map to reflect the congestion status.

    Method and system for intelligent traffic jam detection
    20.
    发明授权
    Method and system for intelligent traffic jam detection 有权
    智能交通堵塞检测方法与系统

    公开(公告)号:US09576481B2

    公开(公告)日:2017-02-21

    申请号:US14700774

    申请日:2015-04-30

    Abstract: Disclosed is a method, apparatus, system and computer program configured to process traffic data and provide relevant information to a driver of a vehicle. A method that is disclosed includes receiving probe data from mobile probes; deriving, from the received probe data, an approximate traffic jam shape and traffic jam area; determining when and at what point a vehicle enters the traffic jam area, and an estimated trajectory of the vehicle within the traffic jam area; and based on the step of determining, generating and sending a message to the vehicle informing the vehicle of at least an estimated time when the vehicle will exit the traffic jam area.

    Abstract translation: 公开了一种被配置为处理交通数据并向车辆的驾驶员提供相关信息的方法,装置,系统和计算机程序。 所公开的方法包括从移动探针接收探测数据; 从接收到的探测数据得出近似的交通堵塞形状和交通堵塞面积; 确定车辆何时何时进入交通堵塞区域,以及车辆在交通堵塞区域内的估计轨迹; 并且基于当车辆将离开交通堵塞区域时至少估计时间来确定,产生和向车辆发送消息的步骤。

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