34results about How to "Relieve traffic pressure" patented technology

The invention relates to the technical field of intelligent transportation, and especially relates to a method and a device for controlling lane flow. The method comprises the following steps: acquiring traffic state information on at least two associated lanes; determining a traffic state difference degree between the at least two associated lanes based on the acquired traffic state information;and when the traffic state difference degree meets a preset triggering condition, adjusting a lane traffic control strategy for the at least two associated lanes, and notifying vehicles on at least one lane in the at least two associated lanes of the adjusted lane traffic control strategy. By the adoption of the scheme, the traffic control strategy can be adjusted in time according to the trafficstate on the lane, lane resources can be effectively utilized, and lane traffic pressure in the peak period is relieved.

The present invention discloses a sidewalk having a top cover and a semi-prefabricated building method thereof. The sidewalk comprises a base (1), a pavement positioned above the base (1), vertical columns (2) fixedly connected with the base (1), supporting beams (3) for fixedly connecting the tops of the vertical columns (2), and a top cover (5) fixed on the supporting beams (3), wherein the vertical columns (2) and the supporting beams (3) are prefabricated concrete structures, the tops of every two vertical columns (2) are connected through a supporting beam (3) so as to form an integral supporting frame unit (10), the base (1) is a cast-in-place concrete structure, and the top cover (5) comprises a prefabricated bottom plate unit (51) and a cast-in-place concrete top layer (52) integratedly combined with the prefabricated bottom plate unit (51). With the sidewalk having the top cover, a pedestrian channel having a top cover can be conveniently and rapidly formed, and the top of the channel can form a large area ??greening area so as to provide a comfortable living environment for residents.

The invention relates to a parking garage recommendation method based on a feed-forward LSTM model. The present invention comprehensively considers the time it takes for the vehicle to go to the traffic hotspot area to the parking lot, the time it takes to find a parking space in the parking lot, and the time it takes to leave the parking lot. The present invention uses weather data when predicting the convenience index and traffic index of the parking lot. , which can effectively improve the prediction accuracy. The improvement of the prediction accuracy helps to improve the parking experience of the car owner, and makes it easier for the car owner to accept the recommendation scheme proposed by the present invention. The present invention can effectively alleviate the traffic pressure around the traffic hot spot area.

The invention relates to a municipal road and a construction method thereof, comprising a support base frame, an anti-slip layer is laid on the upper end surface of the support base frame, a locking device is uniformly arranged on the side wall of the support base frame along its circumference, and the support base frame The lower end is uniformly provided with inserting and fixing devices. The present invention can solve the following difficult problems existing in the existing urban roads when they cannot be opened to traffic after being impacted by a heavy rain. Carry out filling and repairing to ensure the passage of vehicles, and the emergency capability is poor. b In order to facilitate temporary passage, objects such as plates are used to cover the potholes impacted by the rainstorm, which can only be used for small-sized and light-weight vehicles, and the stability of its use cannot be guaranteed. Sex, can't relieve the traffic pressure, can't guarantee the safety of passing.

The invention relates to a repairing method for modular expansion joints of bridges. Before construction, the expansion joints are pre-constructed to carry out structural survey to determine the damage of the expansion joints to select a corresponding repairing method, including the following situations: 1. Damage to the middle beam , the expansion box is not damaged; 2, the middle beam is not damaged, the expansion box is damaged; 3, some expansion joints are damaged. In view of the above-mentioned damages, the present invention adopts the method of partial repair, which does not need to replace the entire expansion joint, but only needs to carry out partial repair or partial replacement of the damaged part. On the premise of ensuring the integrity and service life of the expansion joint, it saves costs and improves Repair efficiency, save construction time, and achieve rapid opening to traffic. Moreover, during the restoration construction, only a certain traffic lane is closed for maintenance, which relieves the traffic pressure on the bridge deck and reduces potential safety hazards.

The invention discloses an optimal control method for traffic lights at urban road intersections, which includes (1) dismantling and determining eight kinds of traffic phases on four bayonets according to the time and space characteristics of actual vehicle passage at the intersection; (2) determining the eight kinds of The phase compatibility table is established for the passing phase, and it is determined that any two passing phases are compatible if they do not conflict; (3) According to the phase compatibility table, the driving safety calculation formula is obtained, and then 12 kinds of compatible phase combinations are obtained; ( 4) Steps such as precalculating and forming the original phase sequence series table and the transformed phase sequence series table corresponding to the original phase sequence in the original phase sequence series table according to the pairwise compatible phase combination. The present invention provides an optimal control method for traffic lights at urban road intersections, which breaks through the limitations of traditional traffic strategies, overcomes the inertial thinking in the industry, optimizes the traffic strategy at traffic intersections, and greatly relieves the traffic pressure at traffic intersections. The traffic efficiency of vehicles is improved.

The present application discloses a vehicle speed guidance method and device, including: obtaining the target driving route of the target vehicle, and the weight associated with the target vehicle; obtaining signal lamp phase information on the target driving route, and The speed on each road section divided by the signal lamp; according to the length of each road section on the target driving line, the speed on each road section and the phase information of the signal lights between each road section, determine the candidate vehicle speed guidance scheme; according to each The travel time and / or vehicle speed on each road section in a candidate speed guidance scheme, determine the energy consumption corresponding to each candidate speed guidance scheme, and according to the energy consumption corresponding to each candidate speed guidance scheme, the sum of the passage time of all road sections As well as the weights of the energy consumption and the maximum endurance time, a vehicle speed guidance scheme is selected from the candidate vehicle speed guidance schemes.

The present invention provides a lane light control system and method at the merging point of an expressway, wherein the system includes: a first stop line, which is set downstream of the merging section of the expressway, and a first lane is set in front of the first stop line Lights; Expressway includes: first lane, second lane, on-ramp and off-ramp, second lane includes diverging section and merging section, on-ramp intersects with second lane on the merging section, and off-ramp on diverging section It connects with the second lane; the second stop line is set at the junction of the on-ramp and the diversion road section, and the second lane light is set in front of the second stop line; the radar video tracking detection device is set on the expressway and the drive-in On the ramp, it is used to obtain the driving information of the motor vehicle; the lane light control device is communicated with the radar video tracking detection device, and is used to control the first lane light and / or the second lane light according to the driving information collected by the radar video tracking detection device .

The present invention discloses a method and system for improving traffic capacity of mixed lanes, wherein the method includes: obtaining path information of passing vehicles within a predetermined period of time and within a predetermined range; obtaining road network nodes within the predetermined range; according to the The route information is used to obtain the first driving direction of the first vehicle at the first node; the cloud icon labeling model is constructed; the first driving direction is input into the cloud icon labeling model, and the first vehicle is obtained at the cloud icon labeling model. The first cloud icon information of the first node; loading the first cloud icon information into the path information; selecting the lane of the first node according to the first cloud icon information, and obtaining the first cloud icon information A driving instruction. It solves the technical problem in the prior art that the mixed lane on the right side of the fork cannot be effectively dredged, which affects the traffic of vehicles, thereby reducing the efficiency of vehicle traffic in the mixed lane.

The present invention provides a weaving road section and a method for improving its traffic efficiency by using alternate traffic rules, wherein the weaving road section includes: at least two driving directions and two driving directions, and the first lane and the second lane are set at the In the first driving direction, the third and fourth lanes are set in the second driving direction, the fifth and sixth lanes are set in the first driving direction, and the seventh and eighth lanes are set in the second driving direction, The second lane and the third lane meet at the weaving road section to form a shared lane, and the other end of the shared lane connects the sixth lane and the seventh lane respectively; there is a first stop line downstream of the second lane, and an upstream of the first stop line , the first parking space and the first no-stop area are set in sequence; the second parking line is set downstream of the third lane; Downstream of , the fourth and third parking lines are sequentially set at intervals.

A method and device for evaluating and predicting the accuracy of time required for a vehicle to pass through a signal light intersection provided by the present invention, comprising: obtaining the driving information, target position information and signal light information of each vehicle on the current road section; judging whether there is a second vehicle in front of the first vehicle And signal lights; when there is a second vehicle in front of the first vehicle and there is a signal light, judge whether the speed of the second vehicle is zero; when it is not zero, judge the state of the signal light in front of the second vehicle; , calculate the first time when the first vehicle arrives at the target position; obtain the second time when the first vehicle actually arrives at the target position; calculate and predict the time accuracy for the first vehicle to reach the target position according to the first time and the second time. By implementing the present invention, it is possible to accurately evaluate the prediction of the passing time of vehicles, and to control signal lamps based on the evaluation results, thereby effectively relieving the traffic pressure at signal lamp-controlled intersections.