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1. 发明申请

US20150081196A1 TRAFFIC BOTTLENECK DETECTION AND CLASSIFICATION ON A TRANSPORTATION NETWORK GRAPH 有权
标题翻译：运输网络图上的交通瓶颈检测和分类
公开(公告)号：US20150081196A1
公开(公告)日：2015-03-19
申请号：US14490145
申请日：2014-09-18
申请人： ITERIS, INC
发明人： KARL F. PETTY , ANDREW J. MOYLAN
IPC分类号： G08G1/01 , H04L29/08
CPC分类号： G08G1/0133 , H04W4/027 , H04W4/029 , H04W4/046
摘要： Traffic congestion detection, classification and identification includes analysis of link-speed data representative of vehicular speed and capacity on one or more roadway segments to determine non-linear, multi-segment traffic bottlenecks in a transportation network graph. Link-speed data is processed to detect bottleneck conditions, classify bottlenecks and bottleneck-like traffic features according to their complexity, and identify sustained or recurring bottlenecks. Such a system and method of traffic congestion detection, classification and identification provides a framework for using this link-speed data to detect the head and queue of bottlenecks on a directed graph representing the transportation network, classify the resulting bottlenecks and bottleneck-like traffic features according to the shape of their queue, and identify and measure sustained or recurrent bottlenecks even when the location, or head, of the bottleneck varies slightly across multiple time periods or across multiple days.
摘要翻译：交通拥堵检测，分类和识别包括分析代表一个或多个道路段上的车辆速度和容量的链路速度数据，以确定交通网络图中的非线性，多段交通瓶颈。处理链路速度数据以检测瓶颈条件，根据其复杂性对瓶颈和瓶颈状流量特征进行分类，并确定持续或反复出现的瓶颈。这种交通拥堵检测，分类和识别的系统和方法提供了使用这种链路速度数据来检测表示运输网络的有向图上的瓶颈的头部和队列的框架，对所产生的瓶颈和瓶颈状的交通特征进行分类根据队列的形状，识别和测量持续或复发的瓶颈，即使瓶颈的位置或头部在多个时间段或多天内略有不同。

2. 发明申请

US20140222321A1 TRAFFIC STATE ESTIMATION WITH INTEGRATION OF TRAFFIC, WEATHER, INCIDENT, PAVEMENT CONDITION, AND ROADWAY OPERATIONS DATA 审中-公开
标题翻译：交通状况，交通状况，天气，事故，交通条件和道路运营数据的交通状况估计
公开(公告)号：US20140222321A1
公开(公告)日：2014-08-07
申请号：US14173611
申请日：2014-02-05
申请人： ITERIS, INC.
发明人： KARL F. PETTY , ANDREW J. MOYLAN , JAIMYOUNG KWON , JOHN J. MEWES
IPC分类号： G01C21/34
CPC分类号： G01C21/3492 , G08G1/0112 , G08G1/0116 , G08G1/012 , G08G1/0129 , G08G1/0133 , G08G1/0141 , G08G1/0145 , G08G1/04 , G08G1/096716 , G08G1/096775
摘要： An integrated traffic state estimation framework ingests information from multiple input data sources having an impact on traffic flow and correlated to specific road links in a segmented roadway network, and generates output data representative of predictive traffic states. The predictive traffic states are then modeled to generate routing information for traffic on a particular section of roadway. These multiple input data sources include general traffic data collected from one or more sensors or third parties, weather data, incident data, pavement condition data, and roadway operations data, each of which includes data relevant to traffic congestion. The input data is weighted and modeled with data processing modules configured to integrate known and predicted information to produce accurate routing information for particular roadway segments for media, telematics, and consumer uses.
摘要翻译：综合交通状况估计框架从对交通流量的影响的多个输入数据源摄取信息并与分段道路网络中的特定道路链路相关联，并且生成表示预测交通状态的输出数据。然后对预测的交通状况进行建模，以生成道路上特定部分的交通路线信息。这些多输入数据源包括从一个或多个传感器或第三方收集的一般业务数据，天气数据，事件数据，路面状况数据和道路操作数据，每个数据包括与交通拥堵有关的数据。输入数据被加权和建模，其中数据处理模块被配置成集成已知和预测的信息，以为媒体，远程信息处理和消费者使用的特定道路段产生精确的路由信息。

3. 发明申请

US20150006069A1 DATA QUALITY ASSESSMENT AND REAL-TIME EVALUATION OF GPS PROBE DATA 有权
标题翻译：数据质量评估和GPS探测数据的实时评估
公开(公告)号：US20150006069A1
公开(公告)日：2015-01-01
申请号：US14321759
申请日：2014-07-01
申请人： ITERIS, INC.
发明人： JAIMYOUNG KWON , KARL F. PETTY , ALEX A. KURZHANSKIY , ANDREW J. MOYLAN
IPC分类号： G08G1/052
CPC分类号： G08G1/052 , G08G1/0112 , G08G1/0133 , G08G1/0141
摘要： Quality assessment of probe data collected from GPS systems is performed by a system and method of determining a value of data points provided by different vendors of such data. Incoming raw probe data is initially analyzed for removal of extraneous data points, and is then mapped to roadway links and smoothed out. The resulting output is processed to determine the coverage value of data provided by a given vendor and enable a comparison between different vendors. Such a model of probe data processing also enables an evaluation of a contribution of further vendors of raw probe data to an existing dataset. Additionally, a real-time performance evaluation of continually-ingested probe data includes building historical and data count profiles, and generating output data represented by a number of data points for a specific distance within a geo-box representing a geographical area, to project a value of raw probe data for a next incremental time period.
摘要翻译：从GPS系统收集的探测数据的质量评估是通过确定这些数据的不同供应商提供的数据点的值的系统和方法进行的。最初分析接收的原始探测数据，以清除无关的数据点，然后将其映射到道路链路并进行平滑处理。处理所得到的输出以确定给定供应商提供的数据的覆盖率，并且可以在不同的供应商之间进行比较。探测数据处理的这种模型还能够使原始探测数据的其他供应商对现有数据集的贡献进行评估。此外，持续摄取的探测数据的实时性能评估包括建立历史和数据计数概况，以及生成由表示地理区域的地理位置内的特定距离的多个数据点表示的输出数据，以投影下一个增量时间段的原始探测数据的值。

4. 发明申请

US20150006068A1 TRAFFIC SPEED ESTIMATION USING TEMPORAL AND SPATIAL SMOOTHING OF GPS SPEED DATA 有权
标题翻译：使用GPS速度数据的时间和空间平滑的交通速度估计
公开(公告)号：US20150006068A1
公开(公告)日：2015-01-01
申请号：US14321754
申请日：2014-07-01
申请人： ITERIS, INC.
发明人： JAIMYOUNG KWON , KARL F. PETTY , ALEX A. KURZHANSKIY , ANDREW J. MOYLAN
IPC分类号： G08G1/052
CPC分类号： G08G1/0133 , G06G7/76 , G08G1/0112 , G08G1/096716 , G08G1/20
摘要： Estimation of traffic speed includes applying data processing functions to determine missing speed information by smoothing spatial and temporal GPS data to achieve an accurate estimation of link speed over all links of a transportation network at all time periods. This estimation of traffic speed uses one link's observed speed information to estimate neighboring links without observed speed information and therefore provides a system and method of processing collected GPS data to obtain a thorough understanding of traffic flow conditions for all represented links without further collection of GPS data. The present invention also provides a framework for analyzing and improving real-time collection of GPS speed data.
摘要翻译：交通速度的估计包括应用数据处理功能，通过平滑空间和时间GPS数据来确定丢失的速度信息，以实现在所有时间段内运输网络的所有链路上的链路速度的准确估计。这种交通速度的估计使用一个链路的观察速度信息来估计相邻链路而没有观察速度信息，因此提供了处理收集的GPS数据的系统和方法，以便对所有表示的链路的流量状况进行彻底的了解，而无需进一步收集GPS数据。本发明还提供了用于分析和改进GPS速度数据的实时采集的框架。

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