JP4701095B2 - Road traffic simulation apparatus and program - Google Patents

Description

  The present invention relates to a road traffic simulation apparatus and program for verifying the function of traffic signals and evaluating control effects.

  Conventionally, in order to eliminate traffic congestion and allow the driver to travel more comfortably, and to perform safe and smooth traffic arrangements, traffic traffic function verification and control effects are sometimes performed in traffic simulations.

  This traffic simulation reproduces the traffic light of the traffic light to be verified and the place where the traffic signal is installed, using an information device capable of performing arithmetic processing at high speed such as a work station. The reproduction of traffic conditions affects the traffic information such as the control information related to the traffic signal to be verified, the information on the road traffic situation in the area where the traffic signal is installed, and the installation position and control information of other traffic signals in the area. Various information that is a factor to be given is preset in the workstation, and calculation is performed using a technique such as multivariate analysis based on the set information.

The function verification of the traffic signal, the evaluation of the control effect, and the like are performed by calculating, as an evaluation value, a change in the number of vehicles waiting for signal due to the adjustment related to the lighting control of the traffic signal based on the reproduction result in the traffic simulation described above. For example, in order to calculate the effect of lighting control etc. on changes in traffic conditions, an example of a traffic simulation that performs high-precision traffic volume prediction at high speed is that traffic volume is oversaturated due to traffic congestion etc. In this case, a technique such as Patent Document 1 that can accurately perform traffic simulation is known.
Japanese Patent Laid-Open No. 5-250594

  However, in the above-described conventional technology, it is necessary to simulate the lighting of a traffic signal to be verified or the lighting of another traffic signal in the area where the traffic signal is installed. There are problems such as the inability to maintain the real-time property, the trouble of setting the control information of each traffic light, and the inability to simulate the errors of the actual signal equipment.

  An object of the present invention has been made in view of the above-described problems of the prior art, and is a road traffic simulation apparatus and program for easily performing functional traffic light function verification and control effect evaluation that are more realistic. Is to provide.

In order to solve the above-mentioned problem, the invention described in claim 1 is connected to a traffic simulation control device for a traffic simulation object or a traffic signal control device for a traffic simulation target area, and the function verification and control of the traffic signal control device is performed. A road traffic simulator device for evaluating the effect, which includes road network information, intersection information, traffic volume information, traffic lights as information indicating the traffic situation related to the traffic simulation target traffic signal or the traffic situation related to the traffic simulation target area. Setting means for setting information on traffic conditions including information and sensor information, control means for the target traffic signal device or connection means for electrical connection with the control device for traffic signal devices in the target area, via this connection means the lighting information or the target area from the control unit of the target traffic signal to be acquired And lighting information from the control unit of the traffic lights that, on the basis on the traffic conditions information set by the setting unit, the traffic conditions of the installation location of the traffic signal according to the target traffic signals or said target area Traffic simulation means for performing traffic simulation to be reproduced, based on the traffic simulation by the traffic simulation means, when a virtual vehicle passes through a position corresponding to the sensor information set by the setting means, The control device for the target traffic signal corresponding to the position corresponding to the sensor information or the control of the traffic signal related to the target area, assuming that the vehicle has passed the target traffic signal corresponding to the position or the traffic signal related to the target area Vehicle sensing information generation for generating vehicle sensing information that is information to be sensed by the device Stage, on the basis of the traffic simulation according to it said traffic simulation means, comprises an evaluation means for evaluating a functional verification and control effect of the control device of the traffic signal according to the control device or the target area of the target traffic signal, the connection The means outputs the vehicle detection information generated by the vehicle detection information generation means to the control device for the target traffic signal or the control device for the traffic signal according to the target area, and the traffic simulation means outputs the vehicle detection information to the vehicle detection information. The road traffic simulation device is characterized in that the traffic simulation is performed based on the lighting information from the control device of the target traffic signal or the control device of the traffic signal related to the target area .

The invention according to claim 2, have a traffic simulation target traffic lights controller and connecting means for electrically connecting the control device or traffic signal according to the traffic simulation target area of, Ya functional verification of the control device of the traffic lights The computer of the road traffic simulation apparatus for evaluating the control effect includes road network information, intersection information, traffic information, traffic signal information, and sensor information as information related to the traffic situation or target area related to the target traffic signal. Setting means for setting information on traffic conditions, lighting information from the control device for the target traffic signal acquired via the connection means, or lighting information from the control device for the traffic signal in the target area, and the setting based on said traffic condition information set by the unit, engaging in the target traffic signals or said target area Traffic simulation means for performing a traffic simulation for reproducing the traffic conditions of the installation location of the traffic signal, on the basis of the said traffic simulation by traffic simulation means, the virtual vehicle position corresponding to the sensor information set by the setting means When the vehicle passes, the control of the target traffic signal corresponding to the position corresponding to the sensor information is assumed as a vehicle passing the target traffic signal corresponding to the position corresponding to the sensor information or the traffic signal related to the target area. A vehicle sensing information generating means for generating vehicle sensing information which is information to be sensed by a device or a traffic signal control device related to the target area, based on the traffic simulation by the traffic simulation means, Traffic signal for the target area Evaluation means for evaluating the functional verification and control effect of the control device, to function as, the connecting means, the vehicle sensing information generated by the vehicle sensing information generation unit to the control device or the target area of the target traffic signal The traffic signal is output to the control device for the traffic signal, and the traffic simulation means is supplied with the lighting information from the control device for the target traffic signal that is controlled according to the vehicle sensing information or the control device for the traffic signal according to the target area. A program for performing the traffic simulation based on the program.

According to the first and second aspects of the present invention, it is electrically connected to the control device for the target traffic signal or the control device for the traffic signal in the target area, and the lighting information or the target from the control device for the target traffic signal. A traffic simulation can be performed based on the lighting information from the traffic signal control device related to the area and the traffic condition related to the preset target traffic signal or the traffic condition information indicating the traffic condition related to the target area. When performing a traffic simulation for one traffic signal or a traffic simulation for multiple traffic signals in the target area, it is not necessary to simulate the control algorithm of the traffic signal, and it is possible to save time and effort of setting it. It is possible to verify the function of traffic signals and to evaluate the control effect in accordance with the above.

Further, according to the invention described in claim 1, based on the traffic simulation, when the position of the virtual vehicle according to the sensor information set by the setting means has passed, corresponding to the position corresponding to the sensor information Vehicle detection information to be detected by the control device of the target traffic signal device corresponding to the position corresponding to the sensor information or the control device of the traffic signal device related to the target area, assuming that the vehicle has passed the traffic signal , Since the vehicle sensing information can be input to the traffic signal control device, even when the traffic signal is feedback controlled based on the vehicle that has passed the traffic signal in the traffic simulation, the traffic signal is more realistic. Functional verification and evaluation of control effects.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3, but the present invention is not limited to the following embodiments. Further, the uses and terms of the invention in the embodiments of the present invention are not limited to these.

  FIG. 1 is a block diagram schematically showing a functional configuration of a road traffic simulation apparatus 100 according to the present invention. FIG. 2 is a flowchart showing an operation of road traffic simulation processing in the information processing terminal 1. FIG. 3 is a conceptual diagram illustrating the target area M where the road traffic simulation is performed.

  First, the configuration of the road traffic simulation apparatus 100 will be described. As shown in FIG. 1, the road traffic simulation apparatus 100 is a traffic signal controller S1, S2 that performs light control of an actual traffic signal on an information processing terminal 1 capable of performing multivariate analysis such as a workstation at high speed. ,... Sn is electrically connected via the connection device 2. In addition, the traffic signal controllers S1, S2,... Sn of the actual traffic signal connected to the information processing terminal 1 are traffic signal controllers that are the target of road traffic simulations and traffic signal controllers belonging to the target area. It is. That is, when a traffic simulation related to one traffic signal is performed, the controller of the traffic signal is connected, and when there are a plurality of traffic signals in the traffic simulation target area, the controllers of the plurality of traffic signals are connected.

  The information processing terminal 1 includes a control unit 11, a storage unit 12, a display unit 13, an operation unit 14, and the like.

  The control unit 11 includes a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and the like (not shown). The CPU reads various control programs and setting information stored in advance in the ROM or the storage unit 12 into the RAM and executes them sequentially by using a predetermined area of the RAM as a work area, and controls the operation of each unit constituting the information processing terminal 1. Control. The control unit 11 reads and executes a control program 121 related to a road traffic simulation stored in the storage unit 12 to execute a road traffic simulation process (details will be described later), a vehicle detection information generation unit 112, the function as the evaluation data calculation unit 113 is realized.

  The road traffic simulation unit 111 is a traffic signal stored in the storage unit 12 and information indicating traffic conditions and traffic conditions related to the area (road network information 122, intersection information 123, traffic information 124, traffic signal information). 125 and sensor information 126) and traffic signal display information Dt that is the current lighting display information of the traffic signal controllers S1, S2,. Based on this, it is a functional unit that performs a road traffic simulation according to the actual flow of time.

  The vehicle detection information generation unit 112 generates vehicle detection information Dk to be input to the traffic signal controllers S1, S2,... Sn based on the result of the road traffic simulation output from the road traffic simulation unit 111, and the connection device. 2 is a functional unit that outputs the data.

  Based on the result of the road traffic simulation output from the road traffic simulation unit 111, the evaluation data calculation unit 113, for example, determines the traffic congestion length, the passage (stop) time, the average vehicle speed, and the target area of the target traffic signal. Verification of traffic signal functions required for drivers to travel more comfortably by eliminating traffic congestion, such as the time required to pass, the number of intersection stops, and the average travel speed, and for safe and smooth traffic arrangement And a functional unit that outputs an evaluation value of the control effect.

  The storage unit 12 includes a magnetic / optical storage medium, a nonvolatile memory such as a semiconductor, and the like, and is configured to be able to read or write data according to an instruction from the control unit 11. The storage unit 12 may be configured to include a mechanism for detachably loading the above-described magnetic / optical storage medium or semiconductor, for example, a flash memory, an MO (Magneto-Optic) disk, a CD-R / RW. DVD ± R / RW, HDD (Hard Disk Drive), etc., and may be configured to read or write data from these externally loaded media.

  The storage unit 12 stores data such as a control program 121, road network information 122, intersection information 123, traffic information 124, traffic signal information 125, and sensor information 126 in advance. The setting of these data is performed by an input instruction from the operation unit 14 or by writing on another information device when the medium for storing the data is removable as described above.

The control program 121 is a program code for performing a road traffic simulation to be described later by being read and sequentially executed by the control unit 11. The road network information 122 is data relating to a road network that connects each intersection , such as a traffic signal as a target and a road map (interconnection between intersections) in the target area, a distance between the roads, the number of lanes, and a distance between intersections. The intersection information 123 is data indicating the traffic signal as a target, the number of lanes of each intersection in the target area, and the shape (T-shaped road, Y-shaped road, crossroads, etc.). The traffic volume information 124 is data indicating the traffic volume such as the vehicle type of vehicles passing at any point in the road network of the road network information 122, the number of passing vehicles per unit time, and the moving direction (destination). The traffic signal information 125 includes the correspondence relationship between traffic signals on the road network of the road network information 122 and traffic signal controllers S1, S2,... Sn connected to the connection device 2, the display step of the traffic signal, presence / absence of right / left turn display, etc. It is data which shows. The sensor information 126 is data indicating an installation position of a sensor installed for each traffic signal that is a target or a traffic signal that belongs to the target area in the road network of the road network information 122.

  The display unit 13 includes a CRT (Cathode Ray Tube), an LCD (Liquid Crystal Display), an organic or inorganic ELD (ElectroLuminescence Display), a plasma display, and the like, and from the control unit 11 under the control of the control unit 11. An image based on the input display data is displayed on the screen.

  The operation unit 14 includes a keyboard, a mouse, and the like having character input keys, numeric input keys, and other keys associated with various functions, and outputs a pressing signal corresponding to a key pressed by a key operation or the like to the control unit 11. To do. The operation unit 14 may be configured to form a touch panel integrally with the display unit 13.

  The connection device 2 electrically connects the traffic signal controllers S1, S2,... Sn and the information processing terminal 1 via the lamp display information conversion unit 21 or the sensing information conversion unit 22 by connection terminals or communication cables (not shown). It is the structure which connects automatically. The lamp display information conversion unit 21 outputs lamp display signals Dt1, Dt2,... Dtn, which are output from each of the traffic signal controllers S1, S2,. Are converted into a single traffic signal display information Dt and output to the road traffic simulation unit 111. The sensing information converting unit 22 converts the vehicle sensing information Dk output from the vehicle sensing information generating unit 112 into sensor sensing information Dk1, Dk2,... Dkn for each traffic signal controller S1, S2,. Output to the traffic signal controllers S1, S2, ... Sn.

  The traffic signal controller S1 is a device that actually controls the traffic signal in one traffic signal related to the road traffic simulation, and includes a control unit S11, an external line lamp connection unit S12, and a sensor connection unit S13. is there. The control unit S11 is a circuit unit that controls a traffic signal lamp that displays a traffic lamp shown to the driver. Specifically, a timing circuit, a logic circuit, a relay and a signal lamp, a lamp timing, a lamp sequence, and the like (not shown) are specifically illustrated. It has a setting unit for setting. The external line lamp connection unit S12 is connected to a traffic signal lamp to be connected to the traffic signal controller S1 via a communication cable (not shown), and the lamp display signal Dt1 according to an instruction from the control unit S11 is connected to the traffic signal lamp. It is a circuit part which outputs to a device. The sensor connection unit S13 connects sensor detection information Dk1 of a sensor for detecting a vehicle or the like entering an intersection or the like where the traffic signal control device S1 performs traffic control to the sensor connection unit S13. It is a circuit unit that receives via a communication cable (not shown) and outputs it to the control unit S11.

The traffic signal controller S1 controls the display of the traffic signal lamp connected to the external lamp connection unit S12 at a timing set in advance according to the control of the control unit S11. Also, the traffic signal controller S1 is to adjust the control timing of the control section S11 according to the sensor sensing information Dk1 of sensors that is input to the detector connecting portion S13. That is, the traffic signal controller S1 has a configuration capable of autonomously adjusting the display timing of the traffic signal lamp according to the vehicle entering the intersection where the traffic signal according to the traffic signal controller S1 organizes traffic. In addition, about traffic signal controller S2, ... Sn, since it is the structure which has control part S21 ... Sn1 similar to traffic signal controller S1, external light lamp connection part S22 ... Sn2, sensor connection part S23 ... Sn3, Description is omitted.

  Next, a road traffic simulation performed by the control unit 11 in the road traffic simulation apparatus 100 reading the control program 121 stored in the storage unit 12 and sequentially executing the program will be described. As shown in FIG. 2, the control unit 11 acquires road network information 122, intersection information 123, traffic information 124, traffic signal information 125, and sensor information 126 stored in the storage unit 12 (steps A11 to A15). Based on the acquired information and the lighting information of the traffic signal controllers S1, S2,... Sn acquired via the connection device 2, a traffic simulation process simulating the traffic situation of the road network in the road network information 122 is performed. This is performed by the road traffic simulation unit 111 (step A16).

  In this traffic simulation process, the multi-variate analysis imitates that the virtual vehicle passes through the road network in the road network information 122 with the traffic volume corresponding to the traffic volume information 124. When the virtual vehicle passes through the position corresponding to the information 126, the vehicle sensing information Dk for the corresponding traffic signal controllers S1, S2,.

  Next, the average traffic state of the virtual vehicle is acquired from the result of the traffic signal simulation process in step A16, and the vehicle determines the traffic congestion length, passage (stop) time, average vehicle speed and target area of the target traffic signal. Signal control evaluation data such as the time required for passing, the number of intersection stops, and the average travel speed are calculated by the evaluation data calculation unit 113 (step A17), and the calculated evaluation data is displayed on the display unit 13 ( Step A18) is ended.

  Here, the outline of the traffic simulation performed at the target intersection or area by the above-described processing will be described. As shown in FIG. 3, the target area M to be subjected to the traffic simulation is that the intersections C1, C2,... C10 where the traffic control is performed by the lighting control of the traffic signal controllers S1, S2,. The traffic volume at points connected to R2,... R12 and flowing into the target area M is measured in advance as traffic volume information K1 to K7. The road network information 122, the intersection information 123, the traffic information 124, the traffic signal information 125, and the sensor information 126 stored in the storage unit 12 are set from the operation unit 14 based on the information on the target area M.

  The control unit 11 performs a road traffic simulation based on the setting information and lighting information from the traffic signal controllers S1, S2,... S10 corresponding to the intersections C1, C2,. On the display unit 13 such as the length of traffic congestion at the intersections C1, C2... C10, the passage (stop) time, the average vehicle speed and the time required for the vehicle to pass through the target area M, the number of intersection stops, the average travel speed, etc. Display signal control evaluation data.

As described above, the road traffic simulation apparatus 100 is electrically connected to the traffic signal controllers S 1, S 2,... Sn, which control the traffic signal that is the object of the traffic simulation or the traffic signal belonging to the area, via the connection device 2. Based on the lighting information output from the traffic signal controllers S1, S2,... Sn, and the traffic signal information indicating the traffic signal of the target or the local traffic condition preset by the storage unit 12. It is a configuration that performs traffic simulation.

  For this reason, the road traffic simulation apparatus 100 can use an actual traffic signal controller, and can perform an accurate traffic simulation that faithfully reflects minute errors included in the actual traffic signal. In addition, it is not necessary to make a setting related to the control of the traffic signal beforehand, and it is possible to reduce time and effort when performing a traffic simulation. Moreover, when performing a traffic simulation, it is not necessary to reproduce the traffic signal control on the information processing terminal 1 side, and the processing load can be reduced.

  Further, in the traffic simulation reproduced by the information processing terminal 1, the road traffic simulation apparatus 100 sends signals corresponding to the traffic signal controllers S1, S2,... Sn to the traffic signal controller according to the passage of the virtual vehicle. It is the structure which outputs to S1, S2, ... Sn. Therefore, the road traffic simulation apparatus 100 can perform an accurate traffic simulation even when the traffic signal controllers S1, S2,... Sn perform feedback control using a sensor.

  Note that the description in the present embodiment shows an example of the present invention, and the present invention is not limited to this. The configuration and operation of the road traffic simulation apparatus 100 in the present embodiment can be changed as appropriate without departing from the spirit of the present invention.

  For example, the traffic signal controllers S1, S2,... Sn in the present embodiment exemplify a configuration in which each traffic signal controller performs autonomous control in response to an input from a sensor, but other traffic signal controllers The control units may be connected to each other via a communication cable so that they can communicate with each other, and the control timing of each other may be synchronized. If the configuration uses an actual traffic signal controller, the connection is possible. The layout is not limited. Further, the traffic signal controllers S1, S2,... Sn do not include the sensor connection sections S13, S23, Sn3 for connecting to the sensors, and are always lit at the control timing set in the control sections S11, S12, Sn1. The structure which performs control may be sufficient.

  Moreover, although the road traffic simulation in the road traffic simulation apparatus 100 illustrated the structure performed according to the flow of actual time, traffic signal controller S1-Sn connected with the information processing terminal 1 via the connection apparatus 2 is shown. The timing of each timing circuit is adjusted to the same double speed, triple speed, etc., and the setting is changed by the operation unit 14 or the like, so that the speed of the simulation time calculated by the control unit 11 is double speed, triple speed. It may be changed to… etc.

  The output of the evaluation data may be printed on a printer (not shown) other than the display screen of the display unit 13.

It is the block diagram which showed typically the functional structure of the road traffic simulation apparatus 100 which is this invention. 4 is a flowchart illustrating an operation of a road traffic simulation process in the information processing terminal 1. It is a conceptual diagram which illustrates the object area M which performs a road traffic simulation.

Explanation of symbols

100 Road Traffic Simulation Device 1 Information Processing Terminal 2 Connection Device (Connection Means)
DESCRIPTION OF SYMBOLS 11 Control part 12 Storage part 13 Display part 14 Operation part 21 Lamp display information conversion part 22 Sensing information conversion part 111 Road traffic simulation part (traffic simulation means)
112 Vehicle sensing information generating unit (vehicle sensing information generating means)
113 Evaluation Data Calculation Unit 121 Control Program 122 Road Network Information 123 Intersection Information 124 Traffic Information 125 Traffic Information 126 Sensor Information Dt Traffic Signal Display Information Dt1, Dt2, Dtn Lamp Display Signal Dk Vehicle Sensing Information Dk1, Dk2, Dkn Sensor Sensing Information S1, S2, Sn Traffic signal controller S11, S21, Sn1 control unit S12, S22, Sn2 External light unit connection unit S13, S23, Sn3 sensor connection unit M Target area C1-C10 Intersections R1-R12 Roads K1-K7 Traffic information

Claims (2)

A traffic traffic simulator device for connecting to a traffic signal control device for a traffic simulation target or a traffic signal control device for a traffic simulation target area, for performing functional verification of the traffic signal control device and evaluating a control effect,
Setting means for setting traffic situation information including road network information, intersection information, traffic volume information, traffic signal information, and sensor information as information indicating traffic conditions related to traffic simulation target traffic signals or traffic simulation target areas ,
Connection means for electrically connecting with the control device for the target traffic signal or the control device for the traffic signal according to the target area,
And lighting information from the control unit of the traffic signal according to the lighting information or the target area from the control unit of the target traffic signal acquired via this connection means, information on the traffic condition set by said setting means Based on the above, traffic simulation means for performing traffic simulation to reproduce the traffic situation of the place where the target traffic signal or the traffic signal related to the target area is installed ,
Based on the traffic simulation by the traffic simulation means, when a virtual vehicle passes through the position according to the sensor information set by the setting means, the target traffic signal corresponding to the position according to the sensor information or the Vehicle sensing information which is information to be sensed by the control device of the target traffic signal corresponding to the position corresponding to the sensor information or the control device of the traffic signal related to the target area, assuming that the vehicle has passed the traffic signal related to the target area Vehicle sensing information generating means for generating
Based on the traffic simulation by the traffic simulation means, evaluation means for performing functional verification and control effect evaluation of the control device of the target traffic signal or the control device of the traffic signal according to the target area,
Equipped with a,
The connection means outputs the vehicle detection information generated by the vehicle detection information generation means to the target traffic signal control device or the traffic signal control device related to the target area,
The traffic simulation means performs the traffic simulation based on the lighting information from the control device of the target traffic signal that is light-controlled according to the vehicle sensing information or the control device of the traffic signal according to the target area. Road traffic simulation device. Road for have a traffic simulation target traffic lights controller and connecting means for electrically connecting the control device or traffic signal according to the traffic simulation target area of the evaluation of the functional verification and control effect of the control device of the traffic lights Computer of traffic simulation equipment,
Setting means for setting traffic situation information including road network information, intersection information, traffic volume information, traffic signal information and sensor information as information indicating the traffic situation relating to the target traffic signal or the traffic situation relating to the target area,
And lighting information from the control unit of the traffic signal according to the lighting information or the target area from the control unit of the target traffic signal acquired via said connecting means, information of the traffic situation set by the setting means Based on the above, traffic simulation means for performing traffic simulation to reproduce the traffic situation of the place where the target traffic signal or the traffic signal related to the target area is installed ,
Based on the traffic simulation by the traffic simulation means, when a virtual vehicle passes through the position according to the sensor information set by the setting means, the target traffic signal corresponding to the position according to the sensor information or the Vehicle sensing information which is information to be sensed by the control device of the target traffic signal corresponding to the position corresponding to the sensor information or the control device of the traffic signal related to the target area, assuming that the vehicle has passed the traffic signal related to the target area Vehicle sensing information generating means for generating
Based on the traffic simulation by the traffic simulation means, evaluation means for performing functional verification and control effect evaluation of the control device of the target traffic signal or the control device of the traffic signal according to the target area,
To function as,
Causing the connection means to output the vehicle detection information generated by the vehicle detection information generation means to the target traffic signal control device or the traffic signal control device related to the target area;
For causing the traffic simulation means to perform the traffic simulation based on the lighting information from the control device of the target traffic signal that is controlled according to the vehicle sensing information or the control device of the traffic signal according to the target area . program.

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