118 results about "Traffic delay" patented technology

Methods and apparatus, including computer program products, for real-time and context-aware tracking of items. Tags bound to items are read and information read from the tags and location information about the tags is provided by at least two enterprises and used to maintain disposition information about the items, which is made visible to enterprises in the supply chain. The disposition information can be mapped to a world model that tracks the items and circumstances affecting the items, for example, geo-spatial events and traffic delays. Visibility of the disposition information can be controlled through authorization. Visible information can include relationships between particular items and business documents such as order and shipping documents.

A navigation system and method factors into its routing decisions information pertaining to transient delays encountered from time to time, one example of such a transient delay is accident information obtained from currently available broadcast traffic flow sources. The system can also factor in historically available traffic delay data based on time of day or other parameters. The navigation system keeps track of the routes traveled by the vehicle (or user) and the times of transit of such routes. When a user requests a route based upon given end-points, the navigation system can use its own stored historical data, as well as currently available traffic delay data, to calculate and announce a given route.

A novel method for coordinating the delivery of frames to and the receipt of frames from a power-saving station in a wireless local-area network (LAN) is disclosed. The illustrative embodiment establishes a wake-up schedule for a power-saving station based on a temporal period and temporal offset that reduces the frequency with which multiple stations in a network wake up simultaneously, thereby reducing traffic delays and power consumption. The illustrative embodiment is particularly well-suited to networks with traffic that has delay / jitter quality-of-service (QoS) requirements (i.e., voice calls, videophone calls, etc.).

A method for communicating navigation information includes receiving destination information from a user. The destination information comprises a desired destination of the user. The method includes determining a first route to the destination and communicating the first route to the user. The method includes monitoring position information of a plurality of vehicles and identifying an area causing traffic delay using the position information of the plurality of vehicles. The method also includes determining a second route to the destination to avoid the area and communicating the second route to the user.

An n-ways conferencing system using only the participants' telephony devices and without an external conference server. A plurality of telephony devices dial in to and report their mixing capability to a connection topology manager. The connection topology manager also determines the location of each telephony device and neighboring telephony device pairs in the conference service, as each telephony device is used for mixing voice signals of its closest neighbors, and calculates a minimum conference traffic delay for each telephony device. The connection topology manager then builds a topology for the conference service based on the mixing capability, location, and minimum conference traffic delay, wherein the connection topology manager distributes a mixing computation in a substantially uniform manner across the plurality of telephony devices. When a change in the network condition is detected, the connection topology manager rebuilds the topology to bypass the change in the network condition.

The invention provides an intelligent method for detecting a traffic accident at night. The method comprises the following steps: acquiring a plurality of monitoring video images of a vehicle during driving at night, and processing the monitoring video images so as to acquire a plurality of binary images; judging car light of the vehicle from the binary images, and determining the position of the vehicle according to the car light of the vehicle; establishing a lane model according to the position of the vehicle, and establishing an image coordinate for the vehicle according to the lane model; acquiring the driving track and driving speed of the vehicle according to the image coordinate and the lane model; and judging whether the vehicle violates traffic regulations according to the lane model, and the driving track and driving speed of the vehicle. According to the intelligent method for detecting the traffic accident at night provided by the embodiment of the invention, the working efficiency of existing road video monitoring is improved, the working strength of monitoring personnel is reduced, and meanwhile traffic delay caused by traffic accidents is reduced so as to prevent secondary accidents.

The invention discloses a road network traffic optimization control system and method, belonging to the field of traffic. The method comprises: traffic data of a road network, especially intersection turning flow data and section divisional flow data, is extracted based on fusion analysis on vehicle-mounted GPS / Beidou positioning data and fixed detector data; a method for detecting a road network traffic state with travel delay index two-dimensional coordinates as characterization parameters is provided, and the road network state is represented by a region range; based on user travel path analysis data, a dynamic dividing method for traffic coordination control cells is provided; by adopting road upstream and downstream traffic capacity analysis technology and with a control target of regional road network traffic optimization, a linked optimization method for a control scheme of signals at crossroads near a regional key intersection is provided; and an intersection signal control adaptive optimization method based on a traffic delay index is provided. The method improves the active prevention and control capability of the control system for road network congestion.

The invention relates to a signal-control crossing left turn traffic combination design optimization method. The method includes the steps of 1) acquiring the geometric condition, signal scheme and historical traffic demand of a target crossing, clarifying the service level requirements of the crossing and converting the requirements into the input parameters of a left-turn traffic time-space optimization model; 2) establishing the left-turn traffic time-space optimization model by taking the crossing average traffic delay minimum as the objective function and combining wth the constraint condition; 3) and solving the left-turn traffic time-space optimization model and obtaining the left-turn traffic time-space optimization scheme considering the left-turn waiting area and short lane combination design. The optimization scheme includes left-turn space design parameters and a signal scheme. Compared with the prior art, the method has the advantages of optimizing the left-turn waiting area / short lane capacity, lane function and signal scheme at the same time.

The invention relates to an intersection with optimized settings. Central double solid lines or an isolated column are / is displaced and arranged to form the intersection with more exit lanes and few entrance lanes; each of a left traffic lane and a right traffic lane is newly provided with a stop line at a distance away from the stop line of the intersection, and an exit or an entrance is arranged behind each stop line; and a car lane dividing line of one exit lane is changed to the central double solid lines or the isolated column, at least one traffic lane is always kept on the left of the car lane dividing line to serve as the exit lane, and the traffic lane on the right is set to a dual-function traffic lane. The dual-function traffic lane and the right traffic lane can be used as the exit lane or the entrance lane for related driving cars under the situation of separated traffic control time. The invention further provides a traffic control method, phase positions are divided into four groups based on a signal machine or a signal control center arranged at the intersection with the optimized settings, each group has four phase positions for connecting with corresponding signal lamps of the intersection, and the four groups in traffic are sequentially and cyclically executed, so that the entrance and the exit lanes of the passage intersection can be increased to the greatest extent, the passing capacity and the passing quantity are improved, the jam can be effectively relieved, and the traffic delay, the oil consumption and the pollution can be reduced.

A method and device for tracking items in real time and a method and device for tracking items in an environment-oriented manner, which include computer program products. A tag attached to an item is read and information read about the tag from the tag and from environmental information is provided by at least two businesses and used to maintain information about the item and to be visible to businesses in the supply chain. The configuration information may correspond to a world model that tracks the item and conditions affecting the item, such as geospatial events and traffic delays. The visibility of configuration information can be controlled by authorization. Visible information may include relationships between specific items and business documents such as orders and shipping documents.

The invention discloses a terminal airspace air traffic delay prediction method under short-time weather influence. According to the method, firstly, on the basis of classifying the precipitation grades, cloud clusters with different precipitation grades are subjected to contour extraction through a radar echo PPI (plane position indication) and RHI (range height indication) image recognition method; secondly, the traffic flow information of the corresponding time is matched with the space range of the precipitation cloud clusters; a three-dimensional WITI (weather influence traffic index) model under the condition of different precipitation grades is built; and finally, by combining the practical control rule, the WITI index, the control interval regulation and the delay time under the detour condition are subjected to index regression analysis to obtain a short-time delay time prediction model. By using the method, radar echo images are matched with terminal airspace structures; the influence degree of severe weather on the approach flight segment is judged; according to a detour path, the control allocation of the horizontal interval and the vertical interval is implemented; and the basis is provided for determining the air traffic delay level under the short-time weather influence in a terminal region.

A traffic processing system comprising a processing system and a delay buffer. The processing system is configured to determine a first delay metric for first traffic on a first path from the TPS to a first node, and determine a first delay differential based on the first delay metric and a second delay metric for second traffic on a second path from the TPS to a second node. The delay buffer is configured to delay the second traffic based on the first delay differential.

The invention discloses a multi-level early warning system and method for a construction area based on vehicle road cooperation technology under a dynamic traffic flow. The system comprises a trafficflow information collection module which is used for collecting traffic flow information of a construction road; an early warning information processing module which is used for obtaining early warning parameter information with combination of the construction position and the vehicle information according to the traffic flow information and for determining whether to sent early warning information with combination of the early warning parameter information; and a vehicle-mounted control module which is used for collecting the vehicle information and sending the vehicle information to the early warning information processing module and receiving the early warning information. The system guides the driver to execute the driving strategy under different traffic conditions by real-time monitoring and tracking of the road traffic state and the current state of the vehicle, effectively controls the random convergence behavior of the vehicle, reduces the traffic delay caused by the random lane change, and improves the traffic efficiency. Meanwhile, through multi-level warning, the possible traffic accidents are reduced and the safety of the construction area is ensured.

The invention discloses a time and space prediction method for an electric vehicle charging load under the constraint of an urban traffic road network and a user travel chain. The method comprises a step of establishing a traffic road model which considers a traffic road network topology and road-impedance function relationship of a Logit-based traffic delay function, a step of dividing an area according to function characteristics and constructing simple and complex travel chains of an electrical vehicle, selecting a travel path with smallest time consumption by using an improved Dijkstra algorithm, and constructing a vehicle travel time and space model, and a step of simulating the spatial and temporal distribution characteristics of the electric vehicle charging load within one day under the constraint of the urban traffic road network and the travel chain.

A method of indicating traffic delays in a navigation system for planning a route of a vehicle is set out. The method includes the steps of receiving traffic information comprising position information of each one of a number of delay incidents, determining a position of the vehicle on a planned route, determining a relevance of each one of the delay incidents on the planned route, based on the position information of the respective delay incident and on the position of the vehicle, selecting at least one delay incident on the planned route, based on the determined relevance of the respective delay incident, and communicating information concerning the selected delay incident to a user. A computer program for performing the method is also set out.

The invention relates to colored asphalt, particularly to a colored asphalt road applicable to various environments and a construction process thereof. The construction process comprises the following steps: preparing materials; heating aggregates; feeding color powder; producing colored asphalt; discharging and detecting. The colored asphalt road prepared by adopting the production process and the construction process is good in road application performance and good in high temperature stability, water damage resistance and durability at different temperatures and in different external environments, has no phenomenon such as deformation, dropping of the asphalt and the like, has good binding property with a basic layer, has bright and durable color, is not faded, can resist the high temperature of 77 DEG C and low temperature of -23 DEG C and is fast in construction period, convenient and rapid to produce, fast to construct, high in efficiency and capable of effectively reducing the traffic delay caused by the construction.

The invention provides a grid model based signal intersection operation evaluation method. The method comprises: constructing a grid model of a road intersection, and performing direction classifyingprocessing on trajectory data of floating vehicles passing through the urban road intersection on the basis of the grid model; obtaining traffic operation parameters of the road intersection, whereinthe traffic operation parameters include the traffic flow of the road intersection, the traffic time of the road intersection, the free flow time of the road intersection, and the average traffic speed of the road intersection; and calculating the traffic delay time of the road intersection according to the traffic operation parameters of the road intersection, and performing operation evaluationon the road intersection according to the traffic delay time. The method can traverse all the signal road intersections of the selected area under the condition of abandoning the map restriction, canperform real-time dynamic evaluation on the road intersections, can diagnose the cause of the road intersection delay, can ensure the accuracy of the evaluation diagnosis, and can improve the trafficefficiency of the road intersection.

The invention provides an intersection signal control time period dividing method. The method comprises the following steps that: the traffic flow data of one day of an intersection are acquired; the traffic flow data are converted into traffic flow vectors, and distances between every two adjacent traffic flow vectors are obtained; the time period of one day is divided into initial time segments through a big data-based CUSUM time sequence segmentation algorithm; merging processing is performed on the initial time segments according to a preset mode, and merged time segments are obtained; a clustering algorithm is adopted to carry out classification processing on the merged time segments according to the distances between the adjacent traffic flow vectors, so that classified target time segments are obtained; and the signal control strategy of each segment is determined according to the target time segments. The intersection signal control time period dividing method of the invention has the advantages of low dependence on traffic information acquisition and high reliability. With the intersection signal control time period dividing method of the invention adopted, traffic passing capability can be remarkably improved, and traffic delay can be effectively reduced.

The invention discloses self-healing type bituminous concrete and a preparation method thereof. The self-healing type bituminous concrete is prepared from, by mass, 100 parts of mineral material, 5-6 parts of SBS modified bitumen and 1.5-2.5 parts of magnetic metal. The preparation method includes the following steps of firstly, preheating mineral material, modified bitumen and magnetic metal to obtain preheated mineral material, preheated modified bitumen and preheated magnetic metal respectively; secondly, mixing and stirring preheated mineral material, preheated modified bitumen and preheated magnetic metal to obtain a mixture; thirdly, forming the mixture to obtain the self-healing type bituminous concrete. The self-healing type bituminous concrete is more uniform in grade distribution, and the surface contact of concrete and steel wool is tighter; due to the steel wool, the rigidity of the bituminous concrete is enhanced, the bituminous concrete is prevented from cracking; by heating the steel wool through electromagnetic waves, bitumen is softened, and a bituminous pavement is healed again. The service life of the bituminous pavement is prolonged, traffic delay time is shortened, maintenance expenses are saved, and economic and social benefits are good.

The invention relates to an operation safety control method of major highway traffic infrastructure, comprising the following steps: structuring an operation safety control system of the major highway traffic infrastructure, wherein the safety control system comprises a data collecting and processing module, a static highway operation safety control evaluation model, an operation safety predictive model, a typical countermeasure base module corresponding to different states of road section, an operation safety control standard module and a decision model; establishing a driving risk index micro-model for entry-exit region; and establishing an operating speed control standard under different weather conditions and establishing an information distribution standard. Compared with the prior art, the invention reduces traffic delay, traffic jam and traffic accident, thereby greatly enhancing the traffic capacity of road networks, ensuring smooth road networks, reducing energy sources consumption and emission load, improving environmental pollution and increasing automobile transportation production rate and economic efficiency.

The invention discloses a data processing method and an apparatus, wherein the method comprises the following steps: receiving a user-instructed instruction for data input; according to a command, retrieving a preset input control; using the retrieved input control to correspondingly obtain parameters of the insured and environmental factors; determining the corresponding traffic delay insurance rate according to a preset algorithm based on the parameters of the insured and environmental factors; and according to the determined traffic delay insurance rate, determining the amount of compensation. According to the embodiment of the invention, an appropriate traffic delay insurance rate can be dynamically adjusted based on the actual situations. Compared with the existing method with a fixed insurance rate, this has more flexibility and relatively improves the rationality and the accuracy of the traffic delay insurance.

A ground traffic organization optimization method applicable to separate three-layer three-dimensional intersection is disclosed. The invention relates to the ground traffic organization optimizationmethod applicable to separate three-layer three-dimensional intersection and aims to solve the problems that current traffic delay is generally high and the utilization of space-time resources is low.The method comprises the steps of (1) supposing that a north-south direction is used as the direction of an undercrossing tunnel and an east-west direction is used as the direction of an overpass bridge, wherein specified signals control the running rules of vehicles in each entrance lane and detour waiting lane, (2) supposing that the north-south direction is used as the direction of the undercrossing tunnel and the east-west direction is used as the direction of the overpass bridge, and coordinating signal time assignment of main and pre-signal and north-south direction straight second stage signals, and (3) determining a length G of a north-south straight turnaround waiting zone according to steps (1) and (2) and a road actual condition and carrying out intersection signal time assignment. The method is used in the field of traffic organization optimization.

The invention provides a manual road traffic parameter investigation system based on a mobile intelligent terminal and aims to solve the problems of incapability of acquiring detailed and accurate data, high subsequent data arrangement workload and difficulty in investigation personnel supervising during existing manual traffic parameter investigation. By the system, collection of detailed and accurate data of traffic volume, traffic density and traffic delay can be realized respectively, investigation data in an EXCEL format can be automatically generated after investigation is completed, and automatic uploading, gathering and analyzing of data collected by the investigation personnel are realized by utilizing the Internet; position information of the investigation personnel is acquired in the process of investigation through a GPS module in the mobile terminal, so that supervising of the investigation personnel is realized. Purchasing of new equipment is not needed, so that the system is low in cost and wide in application range. The system is composed of the mobile intelligent terminal, manual traffic parameter investigation software, a data gathering and monitoring system and a WEB server.

The invention relates to a traffic control method of weaving vehicles in a road merging area, and aims at solving the problem that vehicles arriving at the merging area are slowed down to watch and then pass, resulting in traffic delay and heavy traffic in zipper-like traffic laws implemented on the merging area in peak hours. The method comprises the following steps: 1, investing the merging speed of vehicles in main pads in the road merging area, the merging speed of the vehicles in side roads, the maximum speed limitation of the main road, the maximum speed limitation of the side roads, andgeometric conditions of the roads; 2, determining the locations of a detector, a forced speed change area, a speed recovery area, a rewarding and punishing speed limitation area and a variable speedlimiting device; 3, determining the traffic control rules of the weaving vehicles in the merging area based on the positions, determined in step 2, of the detector, the forced speed change area, the speed recovery area, the rewarding and punishing speed limitation area and the variable speed limiting device. The method is applicable to the technical field of traffic information engineering and control.

The invention provides a vehicle passage system for a roundabout, and a passage control method thereof, and belongs to the field of traffic engineering. According to the vehicle passage system for theroundabout, rotary roads of the roundabout comprise the inner rotary road and the outer rotary road. A left-turn waiting area is arranged between the inner rotary road and a left-turn lane of each entrance lane and comprises a left extending section and an inner overlaying section. A turn waiting area parking line is arranged at the end, connected with the inner rotary road, of each left-turn waiting area. Turn waiting area traffic signal lamps are arranged in front of each turn waiting area parking line. A straight-travelling waiting area is arranged between the outer rotary road and a straight-traveling lane of each entrance lane and comprises a right extending section and an outer overlaying section. A straight-travelling waiting area parking line is arranged at the end, connected withthe inner rotary road, of each straight-travelling waiting area. Travelling waiting area traffic signal lamps are arranged in front of each straight-travelling waiting area parking line. According tothe vehicle passage system for the roundabout, and the passage control method thereof, the problems that an existing roundabout is low in space resource utilization efficiency and large in average traffic delay are solved; and the vehicle passage system for the roundabout, and the passage control method thereof can be used for the roundabout with the large left-turn traffic demand.

The invention provides a method for detecting vehicles and realizing intelligent traffic light control by using ultrasonic waves. Through transmitting and receiving the ultrasonic waves, the detection of the vehicles is realized, the number of the vehicles is counted, the obtained data is input into a fuzzy controller, a fuzzy algorithm is used for calculation to obtain the duration of a green light in the next cycle and thereby the intelligent timing of the traffic lights is realized. The invention provides a very good solution to the problem of traffic delay caused by fixed timing in the existing traffic control.

An advanced traffic management system for overhead roads is composed of computer detection and control subsystem, a closed-circuit TV subsystem and an emergency phone subsystem, the three subsystems are made up of field devices and a central process system, among which, the field devices collect various site information, the central process systems are connected with the monitor center process system for analyzing and managing various traffic information.

The invention provides a method for detecting vehicles by a microwave detector and realizing intelligent control. The method comprises the following steps of: transmitting and receiving microwaves for detecting the vehicles, and counting; inputting the obtained data into a fuzzy controller; and calculating by using a fuzzy algorithm so as to obtain the duration of a green light in the next period and intelligently distribute time to red and green lights. The invention provides a good solution for solving the problem of traffic delay caused by fixed time distribution in the conventional traffic.