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公开(公告)号：US12067867B2
公开(公告)日：2024-08-20
申请号：US17052718
申请日：2018-09-22
申请人： Google LLC
发明人： Torsten Sievers , Laurence Moroney
CPC分类号： G08G1/0145 , G08G1/0112 , G08G1/0133 , G08G1/0141 , G08G1/08 , G08G1/081
摘要： In one example embodiment, a computer-implemented method for determining traffic conditions includes obtaining traffic sample data associated with a first direction of traffic on a first road segment, the traffic sample data including data indicative of a plurality of movement speeds associated with a plurality of objects. The method includes determining a plurality of average traffic speeds for the first direction of traffic on the first road segment based at least in part on the plurality of movement speeds. The method includes associating each of the plurality of average traffic speeds with at least one of a plurality of traffic types. The method includes determining map data based at least in part on the plurality of traffic types and associated average traffic speeds. The method includes transmitting to a client device in response to a request, map data corresponding to at least one of the plurality of traffic types.
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公开(公告)号：US11928961B2
公开(公告)日：2024-03-12
申请号：US16609064
申请日：2019-06-24
申请人： GOOGLE LLC
发明人： Neil Dhillon , Tanmay Wadhwa
IPC分类号： G08G1/08 , B60K31/18 , B60K35/00 , B60W30/18 , G05D1/00 , G05D1/02 , G06V20/54 , G08G1/01 , G08G1/017 , G08G1/052 , G08G1/056 , G08G1/0967
CPC分类号： G08G1/096725 , B60K31/18 , B60K35/00 , G06V20/54 , G08G1/0112 , G08G1/0116 , G08G1/0133 , G08G1/0145 , G08G1/017 , G08G1/052 , G08G1/056 , B60K2310/22 , B60K2370/167 , B60K2370/188 , G06V2201/08
摘要： To reduce the effects of traffic jams, a traffic reduction system identifies road segments having more a threshold amount of traffic. The traffic reduction system also receives an indication of a current location of a client device operating in a vehicle and compares the current location to the locations of the identified road segments to determine whether the vehicle is on or approaching the road segment. If the vehicle is on or approaching the road segment, the traffic reduction system determines a target speed for the vehicle to maintain an equal distance between the vehicle and the vehicle in front of the vehicle and the vehicle and the vehicle behind the vehicle. The traffic reduction system then provides the target speed to the client device for display on a user interface. By maintaining equal distances between vehicles in front of and behind each other, the amount of traffic dissipates.
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公开(公告)号：US11893886B2
公开(公告)日：2024-02-06
申请号：US17609612
申请日：2020-03-27
发明人： Shaun Howell , Maksis Knutins , Rushen Patel
摘要： A traffic control system for controlling traffic at a junction includes an intelligent traffic control agent. The intelligent traffic control agent is training using reinforcement learning, in a simulation model of the junction. The simulation model is calibrated and validated preferably using data from the same sensors which are used as inputs to the traffic control agent when deployed to control traffic at the junction.
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公开(公告)号：US11891079B2
公开(公告)日：2024-02-06
申请号：US17145443
申请日：2021-01-11
发明人： Naoki Uenoyama , Josuke Yamane , Hikaru Gotoh , Takumi Fukunaga , Shin Sakurada , Soutaro Kaneko , Rio Minagawa
CPC分类号： B60W50/14 , B60W30/16 , H04W4/46 , B60W2552/53 , B60W2554/4041 , B60W2554/4042 , B60W2554/4045 , B60W2554/802 , B60W2554/804
摘要： An information processing apparatus is mounted on a vehicle. The information processing apparatus includes a controller configured to detect whether or not the vehicle and a following vehicle are traveling on a same lane, determine whether or not the following vehicle is approaching at a speed faster than a speed of the vehicle, and output a guidance to change lanes, in a case where the vehicle and the following vehicle are traveling on the same lane, the following vehicle is approaching at a speed faster than the speed of the vehicle, and a guidance target exclusion condition is not satisfied.
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公开(公告)号：US20240005784A1
公开(公告)日：2024-01-04
申请号：US18217577
申请日：2023-07-02
CPC分类号： G08G1/0145 , G08G1/08 , G08G1/0129 , G08G1/0116 , G08G1/164 , G06N3/04
摘要： A system to reduce probability of a crash in an intersection is disclosed which includes one or more way-sensor systems, the one or more sensor systems adapted to provide position and velocity vector of an object approaching the intersection on an associated path, a processing unit including configured to: determine timing of the object with respect to a predefined zone of the intersection on the associated path, determine the current and future status of the associated traffic lights on the associated path of the object, predict timing of the object with respect to the predefined zone and future status of the associated traffic light, if timing prediction is within a predetermined threshold, modify the current status, wherein tgreen is extended, if timing prediction is outside of the predetermined threshold, modify the current status, wherein tgreen is reduced, and repeating above steps until the object has cleared the intersection.
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公开(公告)号：US11823565B2
公开(公告)日：2023-11-21
申请号：US17126357
申请日：2020-12-18
申请人： Yunex LLC
发明人： Pratik Shivarkar
IPC分类号： G08G1/01 , G08G1/08 , G08G1/0967
CPC分类号： G08G1/0112 , G08G1/0125 , G08G1/0145 , G08G1/08 , G08G1/0967
摘要： A system for determining a vehicle queue length in a connected vehicle infrastructure environment includes a vehicle traffic data evaluation module with a processor configured via executable instructions to receive vehicle traffic data of multiple vehicles, the vehicle traffic data comprising basic safety messages, create a geometric representation of a vehicle queue, the vehicle queue comprising one or more segments, each segment comprising a set length, extract data of speed, location, date and time from the basic safety messages, aggregate extracted data with the geometric representation of the vehicle queue, assign a speed value of a basic safety message of a vehicle to a segment when the vehicle is identified to be located within the segment of the vehicle queue, detect a sequence of segments comprising assigned speed values, and determine a vehicle queue length based on the set length of each segment.
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7.发明公开公开(公告)号：US20230245557A1
公开(公告)日：2023-08-03
申请号：US18295677
申请日：2023-04-04
申请人： James A. SOLTESZ
发明人： James A. SOLTESZ , John Wes GUCKERT
IPC分类号： G08G1/01 , G08G1/08 , G08G1/052 , G08G1/0967 , E01F9/582
CPC分类号： G08G1/0145 , G08G1/08 , G08G1/052 , G08G1/096716 , G08G1/09675 , G08G1/0133 , G08G1/0116 , G08G1/096783 , E01F9/582
摘要： A system and method for providing increased traffic carrying capacity of a road, such as a highway, by modifying an existing roadway from, for example, four lanes to five lanes, to create an additional travel lane. The system and method dynamically changes the width of travel lanes using, for example, embedded pavement lights, or other lighting arrangements, in lieu of traditional painted lane lines. As traffic volumes increase and speeds decrease along the road, an intelligent transport system (ITS) sends a congestion signal to the overhead lane controls and dynamic message signs (DMS) along the entire road segment of interest. The posted speed limits are changed, and the lane markings are controlled to dynamically increase the number of lanes in the road segment to five, for example, of narrower widths until traffic volumes reduce and the number of lanes can be returned to four, for example, with normal speed limits.
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公开(公告)号：US20220366784A1
公开(公告)日：2022-11-17
申请号：US17611225
申请日：2021-01-07
发明人： Yajuan GUO
摘要： A regional dynamic perimeter control method and system for preventing boundary links queuing overflow. The method includes: estimating the number of queuing vehicles of boundary links using a Kalman filtering extension method using traffic flow information, and calculating a maximum of receivable vehicles; dividing the boundary links utilizing an estimated number of each boundary link's queuing vehicles and the maximum number of receivable vehicles obtaining a boundary link set with sufficient storage and a boundary link set with insufficient storage; obtaining a critical accumulation of a region according to a preset Macroscopic Fundamental Diagram (MFD) model of the region, and predicting the estimated region accumulation in a sampling period; and controlling a regional boundary intersection traffic flow operation using a deviation between the predicted and critical accumulation and boundary link sets. Deterioration of regional traffic flow is avoided, and the probability of overflow of boundary links is reduced.
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公开(公告)号：US11468771B2
公开(公告)日：2022-10-11
申请号：US17468673
申请日：2021-09-08
申请人： TONGJI UNIVERSITY
发明人： Wanjing Ma , Ziliang He , Ling Wang , Chunhui Yu
摘要： The invention relates to a variable speed limit (VSL), ramp metering (RM), and a collaborative method of variable speed limit and ramp metering (VSL-RM) on expressways based on crash risk, including the following steps: 1) calculating the crash risk index within each control step, activating the VSL-RM strategy when the crash risk index exceeds the threshold of the crash risk index, and 2) conduct a multiple-ramp metering strategy, determine the ramps to be controlled and the start-up time for RM, and calculate the integrated ramp regulation rate; 3) execute a variable speed limit strategy to obtain the displayed speed limit value for the segment downstream of the cluster and adjust the ramp regulation rate, mainline desired speed and mainline speed of the segment for the next time period accordingly.
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公开(公告)号：US20220292957A1
公开(公告)日：2022-09-15
申请号：US17296923
申请日：2020-06-15
发明人： JIANXIAO MA , SONG FANG , TAO LU
摘要： An urban tunnel variable lane dividing line control method, comprising: setting a distance between adjacent infrared detection apparatuses, and arranging a number n of infrared detection apparatuses side by side directly above the center of a lane of an urban tunnel; when a certain infrared detection apparatus in the urban tunnel detects a passing vehicle signal, extending the travelling direction, and if a number a of adjacent infrared detection apparatuses further along the travelling direction do not detect a passing vehicle signal within a time t, determining that the vehicle is a very slow vehicle, and changing a number m of LED indication lights which are fully illuminated to be illuminated at intervals. The urban tunnel variable lane dividing line control method can determine whether a very slow vehicle is present in a lane, and adjust a display state of a lane dividing line in an urban tunnel in real time, thereby increasing urban tunnel traffic efficiency, and preventing very slow vehicles from affecting urban tunnel traffic capacity.
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