CN101281684A - Area traffic control system for synergism operation of inducement and zone control of display panel - Google Patents
Area traffic control system for synergism operation of inducement and zone control of display panel Download PDFInfo
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Abstract
An area traffic management system operated by the display panel induction and the area control, relates to a information processing technique, which main comprises an area traffic information collector, an area traffic manager, an area traffic induction decision device, an area traffic control decision device, an area traffic information transmission system, a variable information display panel and a signal controlling machine. The system obtains the area traffic information in good time, performs the automatic analysis process on the collected traffic information, performs the traffic information induction hint to the traffic participants, meanwhile performs the traffic control, effectively solves the area traffic congestion, to make the urban traffic smooth.
Description
Technical field:
The present invention relates to technical field of information processing, more specifically relate to traffic information management system.
Background technology:
Increase along with quickening of urbanization process and automobile pollution, traffic congestion has become the difficult problem that big or middle city faces, one of the main reasons is the vehicle flowrate concentrations in a certain node area in transportation network, thereby surpasses the vehicle flowrate that this node area can hold.Existing traffic signals management generally is the basis data of vehicle flowrate of same time period in the past, the control traffic lights time, and traffic participant also can only by virtue of experience select vehicle to exercise route, if vehicle flowrate concentrations or accident appear in a certain highway section, traffic signals management system and vehicle are exercised the route person and can not in time be adjusted, and cause traffic jam.
Summary of the invention:
The present invention proposes a kind of display board that can control traffic congestion timely and effectively and induces area traffic control system with the Region control Collaboration.
The present invention by the Collaboration of VMS traffic variable information plate and Area Traffic Control System induce with the control area road network in traffic flow, VMS traffic variable information plate is by viewing area road section traffic volume status information, time optimal routing information in zone Link Travel Time information and the zone, for providing more science to draw walking along the street, vehicle in the zone directly selects, the effect that the while area control system is induced according to VMS is determined the crossing signal time distributing conception, thereby the balanced range of distribution of Collaboration road network traffic flow, alleviate the traffic congestion in regional highway section, reduce the probability of happening of traffic jam incident.
Technical scheme of the present invention is to adopt mainly by the regional traffic information acquisition device of gathering the transport information parameter, the area traffic control device that the transport information parameter is handled and stored, induce decision making device according to the data that manager provides to the regional traffic of each highway section distributing traffic information, the highway section is carried out the regional traffic control decision device of signal controlling, the regional traffic information transmission system, be installed in and show the VMS traffic variable information display board of transport information on the crossing and be installed in the signal controlling machine composition that the crossing directs traffic, the regional traffic information acquisition device comprises the fixed detecting device that is installed in the crossing and the Floating Car detecting device on regional highway section of travelling, the traffic parameter of real-time pickup area road network, and pass through the regional traffic information transmission system to area traffic control device real-time Transmission traffic parameter, after the traffic administration device is handled the data of collection, it is that traffic variable information display board generates corresponding real-time traffic and induces information in the zone that regional traffic is induced decision making device, and with regional traffic control decision device Coordination Decision, determine the traffic guidance information content and the regional traffic signal time distributing conception of issue, the regional traffic information transmission system is given corresponding VMS traffic variable information display board with the traffic guidance information transmission, and the regional traffic signal time distributing conception is transferred to the crossing signal controlling machine.
Described regional traffic information acquisition device comprises the fixed detecting device that is installed in the crossing and the Floating Car detecting device on regional highway section of travelling, be responsible for the basic traffic parameter in each highway section in the pickup area, and traffic parameter is passed through the regional traffic information transmission system to area traffic control device real-time Transmission.
Described area traffic control device is responsible for the control and the management of total system, the area traffic control device is provided with a database, the traffic parameter in each highway section in this database real-time storage zone, after the area traffic control device is handled, the interior time optimal path of point-to-point transmission arbitrarily in traffic behavior, Link Travel Time information and the zone in each highway section in the zone that obtains is stored in the database.The area traffic control device is for including the computing machine of data processing function and memory function at least.
Described regional traffic is induced decision making device, traffic behavior according to each controlled highway section of VMS traffic variable information display board, generate in real time the traffic guidance information of sending out cloth, the type of traffic guidance information comprises the path of inducing under the travel time information in the traffic state information in current highway section, current highway section and the congestion state.
Described regional traffic control decision device, induce the obedience rate according to what the traffic behavior in highway section, VMS place and historical data were determined this crossing, thereby the prediction induction information is issued the crossing all directions fluctuations in discharge that causes, and the predicted flows value is transferred to regional traffic control decision device.Regional traffic control decision device calculates the signal time distributing conception at this crossing according to predicted flow rate, and Simulation evaluation crossing integrated management effect, the traffic guidance information that to send out cloth by the regional traffic information transmission system is sent to the VMS traffic variable information plate at each crossing again, the crossing signal time distributing conception is transferred to the signal controlling machine at crossing.
The described regional traffic information transmission system can be carried out transmitted in both directions real time traffic data, induction information and traffic timing scheme between area traffic control device, regional traffic information acquisition device, VMS traffic variable information plate and crossing signal controlling machine.
The described regional traffic information transmission system can be used the current public communication network or be used traffic department's dedicated communications network.
System of the present invention can obtain regional traffic information in time, the transport information of gathering is carried out automatic analyzing and processing, by variable information plate distributing traffic information, traffic participant is carried out transport information induce prompting, change by the crossing signal controlling machine signal lamp time simultaneously and carry out traffic control, it is crowded to have solved regional traffic effectively, makes urban transportation unimpeded.
Description of drawings:
Fig. 1 is a system chart of the present invention;
The synoptic diagram that Fig. 2 induces, controls for the magnitude of traffic flow.
Embodiment:
The area traffic control device 2 that the present invention mainly handles and stores by the regional traffic information acquisition device 1 of gathering the transport information parameter, to the transport information parameter, the data that provide according to manager are induced decision making device 3 to the regional traffic of each highway section distributing traffic information, to the highway section carry out signal controlling regional traffic control decision device 4, the regional traffic information transmission system 5, be installed on the crossing VMS traffic variable information display board 6 that shows transport information and be installed in the signal controlling machine 7 that the crossing directs traffic and form, the function of each several part is as follows:
(1) the area traffic control device 2: the traffic parameter of being responsible for collection and processing region traffic network, comprise: parameters such as flow, queue length, travel speed, journey time, by handling, automatically generate various transport information, the interior highway section in traffic state information, zone that comprises highway section in the zone gets the time optimal routing information of point-to-point transmission in travel time information and the zone, and will generate information stores in database.
(2) the regional traffic information acquisition device 1: comprise the fixed detecting device that is installed in the crossing and the Floating Car detecting device on regional highway section of travelling, the traffic parameter of real-time pickup area road network, and pass through the regional traffic information transmission system to area traffic control device 2 real-time Transmission traffic parameters.
(3) regional traffic is induced decision making device 3: by the traffic behavior at each VMS crossing, automatically generate the content distributed and form of this crossing VMS induction information, the crossing of inducing the issue of obedience rate calculating induction information to be caused by the crossing respectively flows to fluctuations in discharge, and gives regional traffic control decision device 4 with the fluctuations in discharge result transmission.
(4) regional traffic control decision device 4:, determine the signal time distributing conception at this crossing according to predicted flows value that regional traffic induces the crossing of decision system transmission respectively to flow to.
(5) the regional traffic information transmission system 5: be responsible for inducing traffic guidance information that decision making device 3 and regional traffic control decision device 4 Collaboration produce and crossing traffic signal time distributing conception to send traffic variable information plate 6 and intersection annunciator 7 on the regional road network to regional traffic; Also be responsible for the regional road section traffic volume parameter of regional traffic acquisition system collection is transferred to area traffic control device 2.
(6) traffic variable information plate 6: viewing area traffic guidance information, the place ahead road section information and dynamic road section traffic volume status information, Link Travel Time information and the time optimal that comprise static state are induced routing information.By the simple and easy figure and the simple map of display text, color distortion, induce the road network vehicle.
(7) signal controlling machine 7: show the crossing traffic signal time distributing conception.
Area traffic control device 2 can adopt existing monitoring management system, also can adopt novel monitoring management system, is used to monitor the traffic in whole zone.Can in time and handle the traffic parameter of collecting regional road network, induce decision making device 3 to generate traffic guidance information by regional traffic, and generate the crossing signal time distributing conception according to the effect of traffic guidance, and traffic guidance information and crossing signal time distributing conception are distributed to traffic variable information plate 6 and signal controlling machine 7 by traffic control decision making device 4.
Regional traffic induces the obedience rate of inducing of decision system to be determined by following formula:
Wherein: F
Ij(t)---in the t time ij highway section induce the obedience rate, t gets with regional traffic and believes
Number identical time in control system cycle
S
Ij---the traffic guidance wish coefficient in ij highway section
Q
Ij(D)---the VMS factor of influence in ij highway section
f
a---the position influence factor at regional place
f
b---the influence factor of the time of issue induction information
f
c---the property effect factor of the induction information of issue
f
d---do not induced the ratio of vehicle
In actual applications, above parameter need be observed, demarcate according to investigation result on the spot.Under the situation that generally lacks on-site inspection, can carry out preliminary estimation with following table earlier.
| Traffic behavior | The current period | Accident free is arranged | Geographic position of living in | Induce the obedience rate |
| Crowded | The peak | Have | The inner city | 70％～80％ |
| The peak | Have | Non-central city | 60％～75％ | |
| The peak | Do not have | The inner city | 45％～60％ | |
| The peak | Do not have | Non-central city | 45％～55％ | |
| Flat peak | Have | The inner city | 65％～75％ | |
| Flat peak | Have | Non-central city | 50％～65％ | |
| Flat peak | Do not have | The inner city | 30％～40％ | |
| Flat peak | Do not have | Non-central city | 20％～30％ | |
| Stop up | The peak | Have | The inner city | 75％～85％ |
| The peak | Have | Non-central city | 65％～75％ | |
| The peak | Do not have | The inner city | 55％～65％ | |
| The peak | Do not have | Non-central city | 50％～60％ | |
| Flat peak | Have | The inner city | 70％～80％ | |
| Flat peak | Have | Non-central city | 55％～70％ | |
| Flat peak | Do not have | The inner city | 40％～50％ | |
| Flat peak | Do not have | Non-central city | 30％～40％ | |
| Not crowded | The peak | Have | The inner city | 15％～20％ |
| The peak | Have | Non-central city | 10％～15％ |
| The peak | Do not have | The inner city | 5％～10％ | |
| The peak | Do not have | Non-central city | Below 5% | |
| Flat peak | Have | The inner city | About 10% | |
| Flat peak | Have | Non-central city | About 7% | |
| Flat peak | Do not have | The inner city | Below 5%, almost useless | |
| Flat peak | Do not have | Non-central city | Below 5%, almost useless |
The regional traffic whistle control system carries out the flow of Simulation evaluation and is determined by following formula:
V
G＝q
j-V
j×F
ij(t)×q
V
G---Used in Dynamic Traffic Assignment sends to Area Traffic Control System later on for the data on flows of estimating
q
j---the detected flow value of j highway section current detection device
V
j---the j highway section needs derivative flow;
F
Ij(t)---induce the obedience rate, i represents the Ingress node in highway section, and j represents the Egress node in highway section;
Q---factor of influence;
Factor of influence is mainly by following influence factor, the 1st, the content of information releasing, the 2nd, the connectedness of road, factor of influence in the crossing in VMS loca downstream be one along with the factor of successively decreasing, (connectedness of road should possess at the beginning, this place is no longer described in detail), the connectedness physically that connectedness herein is not meant, but at the path connected of having considered that traffic rules are later; When the induction information of issue is traffic behavior with the green demonstration of reddish yellow, its factor of influence and when red crowded highway section took place, the turning at its one or two crossing, the place ahead was induced away than the remarkable increase of regular meeting, has weak inductivity this time;
The regional traffic whistle control system uses Paramics traffic simulation software to carry out effect simulation to the evaluation of traffic signals timing and VMS induction information distribution effect.
The regional traffic information transmission system 5 is transferred to area traffic control device 2 with the traffic data of regional traffic acquisition system collection, but and traffic guidance information and the signal time distributing conception that will send out cloth be transferred to VMS traffic side information plate 6 and signal controlling machine 7.The traffic data that the crossing detecting device is gathered in the regional traffic collector 1 is transferred to the center by the mode (as optical fiber) of wire communication; The traffic data that highway section Floating Car detecting device is gathered is transferred to area traffic control device 2 by the mode (as public communication network such as GSM, GPRS) of radio communication.Area traffic control device 2 is distributed to the information of VMS traffic variable information plate 6 and signal controlling machine 7, by mode (as the optical fiber) transmission of wire communication.
VMS traffic variable information plate 6 mainly is the luminous giant-screen of LED, can show various literal, different colours and figure.
Signal controlling machine 7 mainly is to be used for the signal time distributing conception of implementation center issue.
In Fig. 2, B road and II street intersection vehicle block up, both sides, intersection B road vehicle is got rid of long, regional traffic information acquisition device 1 is sent to area traffic control device 2 with information, information data after area traffic control device 2 will be handled is sent to regional traffic and induces decision making device 3 and regional traffic control decision device 4, regional traffic induce decision making device 3 by traffic variable information plate 6 to each crossing, the highway section distributing traffic information, and induce vehicle through the A road or the C road detour, 4 pairs of signal controlling machines 7 of regional traffic control decision device send steering order, pass through the time as prolonging the B road vehicles.
Claims (6)
1, a kind of display board is induced the area traffic control system with the Region control Collaboration, it is characterized in that: it is by the regional traffic information acquisition device by collection transport information parameter, the area traffic control device that the transport information parameter is handled and stored, induce decision making device according to the data that manager provides to the regional traffic of each highway section distributing traffic information, the highway section is carried out the regional traffic control decision device of signal controlling, the regional traffic information transmission system, be installed in and show the VMS traffic variable information display board of transport information on the crossing and be installed in the signal controlling machine composition that the crossing directs traffic, the regional traffic information acquisition device comprises the fixed detecting device that is installed in the crossing and the Floating Car detecting device on regional highway section of travelling, the traffic parameter of real-time pickup area road network, and pass through the regional traffic information transmission system to area traffic control device real-time Transmission traffic parameter, after the traffic administration device is handled the data of collection, it is that traffic variable information display board generates corresponding real-time traffic and induces information in the zone that regional traffic is induced decision making device, and with regional traffic control decision device Coordination Decision, determine the traffic guidance information content and the regional traffic signal time distributing conception of issue, the regional traffic information transmission system is given corresponding VMS traffic variable information display board with the traffic guidance information transmission, and the regional traffic signal time distributing conception is transferred to the crossing signal controlling machine.
2, area traffic control system according to claim 1, it is characterized in that: the regional traffic information acquisition device comprises the fixed detecting device that is installed in the crossing and the Floating Car detecting device on regional highway section of travelling, be responsible for the basic traffic parameter in each highway section in the pickup area, and traffic parameter is passed through the regional traffic information transmission system to area traffic control device real-time Transmission.
3, area traffic control system according to claim 1, it is characterized in that: the area traffic control device is responsible for the control and the management of total system, the area traffic control device is provided with a database, the traffic parameter in each highway section in this database real-time storage zone, after the area traffic control device is handled, the interior time optimal path of point-to-point transmission arbitrarily in traffic behavior, Link Travel Time information and the zone in each highway section in the zone that obtains is stored in the database.
4, area traffic control system according to claim 1, it is characterized in that: regional traffic is induced decision making device, traffic behavior according to each controlled highway section of VMS traffic variable information display board, generate in real time the traffic guidance information of sending out cloth, the type of traffic guidance information comprises the path of inducing under the travel time information in the traffic state information in current highway section, current highway section and the congestion state.
5, area traffic control system according to claim 1, it is characterized in that: regional traffic control decision device, induce the obedience rate according to what the traffic behavior in highway section, VMS traffic variable information plate place and historical data were determined this crossing, thereby the crossing all directions fluctuations in discharge that the issue of prediction induction information causes, and the predicted flows value is transferred to regional traffic control decision device, regional traffic control decision device calculates the signal time distributing conception at this crossing according to predicted flow rate, and Simulation evaluation crossing integrated management effect, the traffic guidance information that to send out cloth by the regional traffic information transmission system is sent to the VMS traffic variable information plate at each crossing again, the crossing signal time distributing conception is transferred to the signal controlling machine at crossing.
6, area traffic control system according to claim 1 is characterized in that: the regional traffic information transmission system can be carried out transmitted in both directions real time traffic data, induction information and traffic timing scheme between area traffic control device, regional traffic information acquisition device, VMS traffic variable information plate and crossing signal controlling machine.
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