CN102779408A - Regional emergency traffic evacuation simulation system based on activity - Google Patents
Regional emergency traffic evacuation simulation system based on activity Download PDFInfo
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Abstract
The invention discloses a large-scale regional emergency traffic evacuation simulation system based on activities, which comprises a disaster evolution module, a road network construction module, a population and activity generation module, a microscopic traffic simulation module, an animation display module and a statistical analysis module. The disaster evolution module is used for providing an influence of a disaster on a road system; the road network construction module is used for constructing a road network and an activity place; the population and activity generation module is used for generating a population evacuation and individual and family escape plan; the microscopic traffic simulation module is used for generating a population evacuation and vehicle movement trajectory; the animation display module is used for displaying a population evacuation and vehicle movement process; and the statistical analysis module is used for statistical analysis of traffic conditions during evacuation. The individual and family escape plan and the destructive effects of disasters on the road network during evacuation are comprehensively considered, the vehicle movement process is described via microscopic traffic simulation, the whole traffic evacuation simulation process is enabled to be more practical, and the assessment of an emergency traffic evacuation plan can be realized effectively.
Description
Technical field
The present invention relates to the emergent traffic evacuation technical field in zone on a large scale, the emergent traffic evacuation system in particularly a kind of zone based on activity.
Background technology
Emergent traffic evacuation is the important means that a lot of in the world countries dispose nature or man-made disaster.Carry out emergent traffic evacuation work by emergent traffic evacuation analogue system on a large scale, for science formulate rationally, emergent traffic evacuation prediction scheme efficiently, improve the ability of city solution of emergent event, have crucial meaning.
Though traditional analogue system can be applied to emergent traffic evacuation work, because these systems only consider to the normality traffic behavior that can not reflect the complicacy characteristics of emergent traffic evacuation well, analog result differs far away with actual.Existing analogue system to emergent traffic evacuation has partly been considered the traffic behavior under the case of emergency, but does not consider the decision behavior and the activity of individual and family, and analog result also has certain distance with reality.
Summary of the invention
The objective of the invention is to provide a kind of emergent traffic evacuation analogue system on a large scale based on activity; It can simulate individual and the active procedure of family in whole evacuation process; Ability science, the assessment of the emergent traffic evacuation prediction scheme of realization effectively provide decision support for the decision maker fast, rationally makes the accident disposal method.
The present invention proposes the emergent traffic evacuation system in a kind of zone based on activity; It is characterized in that; This system comprises: disaster evolution module, road network make up module, population and movable generation module, microscopic traffic simulation module, animation display module, statistical analysis module, wherein
Said disaster evolution module is used to provide propelling in time, and disaster is to the destructiveness of road section, crossing;
Said road network makes up module and is used to create Traffic Net, and activity venues such as residential quarter, office space, refuge;
Said population and movable generation module make up module with said disaster evolution module and said road network respectively and are connected; It is used to produce different classes of dispersing the population; And according to the Information of Development of the disaster of said disaster evolution module output, disaster to the Traffic Net structure that the destructiveness and the said road network of road section, crossing makes up module creation, generate corresponding individual and family and flee from activity program;
Said microscopic traffic simulation module makes up module with said disaster evolution module, said road network respectively and is connected with said population and movable generation module; Individual that it is used for generating according to said population and movable generation module and family flee from the Traffic Net structure that activity program and said road network make up module creation; Generation is dispersed the population by means of the details motion process of different modes of transportation on Traffic Net, the i.e. movement locus of population, vehicle and system performance measure;
Said animation display module is connected with said microscopic traffic simulation module, its population, the movement locus of vehicle according to the output of said microscopic traffic simulation module, on human-computer interaction interface, show intuitively disperse the population, the motion process of vehicle;
Said statistical analysis module is connected with said microscopic traffic simulation module, and it carries out statistical study according to the system performance measure of the said microscopic traffic simulation module output traffic circulation situation when evacuating.A kind of beneficial effect of emergent traffic evacuation analogue system on a large scale based on activity that the present invention proposes is: overcome prior art and can not consider individual and the activity of family in the evacuation process; Taken all factors into consideration individual and family in the evacuation process and fled from planning activity, disaster destroying infection road network; And adopt microscopic traffic simulation to describe the vehicle movement process; The evacuation dynamic process can be described more accurately; Make and the whole traffic evacuation simulation process reality of fitting more can effectively realize the assessment of emergent traffic evacuation prediction scheme.The present invention is the emergent traffic evacuation prediction scheme of evaluate accurately, and the help science is formulated rationally, the traffic evacuation prediction scheme of meeting an urgent need efficiently, improves the ability of city solution of emergent event.
Description of drawings
Fig. 1 is the structural representation that the present invention is based on the emergent traffic evacuation system in movable zone.
Fig. 2 makes up the good regional road network interface of module construction with road network.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, to further explain of the present invention.
Fig. 1 is the structural representation that the present invention is based on the emergent traffic evacuation system in movable zone; As shown in Figure 1, the present invention is based on the emergent traffic evacuation system in movable zone and comprise that disaster evolution module, road network make up module, population and movable generation module, microscopic traffic simulation module, animation display module, statistical analysis module.
Wherein: disaster evolution module is used to provide propelling in time, and disaster is to the destructiveness of road section, crossing; Road network makes up module and is used to create Traffic Net, and activity venues such as residential quarter, office space, refuge; Population and movable generation module make up module with said disaster evolution module and said road network respectively and are connected; It is used to produce different classes of dispersing the population; And according to the Information of Development of the disaster of said disaster evolution module output, disaster to the Traffic Net structure that the destructiveness and the said road network of road section, crossing makes up module creation, generate corresponding individual and family and flee from activity program; The microscopic traffic simulation module makes up module with said disaster evolution module, said road network respectively and is connected with said population and movable generation module; Individual that it is used for generating according to said population and movable generation module and family flee from the Traffic Net structure that activity program and said road network make up module creation; Generation is dispersed the population by means of the details motion process of different modes of transportation on Traffic Net, the i.e. movement locus of population, vehicle and system performance measure; The animation display module is connected with said microscopic traffic simulation module, its population, the movement locus of vehicle according to the output of said microscopic traffic simulation module, on human-computer interaction interface, show intuitively disperse the population, the motion process of vehicle; Statistical analysis module is connected with said microscopic traffic simulation module, and it carries out statistical study according to the system performance measure of the microscopic traffic simulation module output traffic circulation situation when evacuating.
Particularly; Disaster evolution module adopts the XML file layout to store different disaster informations, comprises the disaster title, specifies disaster in scope that different time arrived; The population scope that is influenced; And to the destructiveness of road section, crossing, above-mentioned these information are confirmed according to the data that hazard forecasting relevant departments are provided by the professional, such as: * * disaster (such as hurricane) will be to the west of 15:15 (time) arrives * * road, * * district (coverage); Population in this zone will be influenced by hurricane, and * * road, * * road, * * street etc. can be destroyed; 15:25 (time) arrives to the west of the * * road, * * district (coverage), and the population in this zone will be influenced by hurricane, and * * road, * * road, * * street etc. can be destroyed, and can't use.
Road network makes up module and creates Traffic Net and playground with the graphic user interface form; The attribute of configuration Traffic Net and playground; Such as the character in road width, lane width, number of track-lines, road speed limit, place and capacity etc., and amplification to Traffic Net and playground be provided, dwindle, between two parties, show function such as global network.Said road network makes up module and adopts the form of (void) node-arc to describe the Traffic Net structure; Adopt the form of node to describe playgrounds such as residential quarter, office space, school, shopping place, hospital, amusement and recreation place, diet place and refuge, as shown in Figure 2.
Population and movable generation module produce dispersing the population of all ages and classes section such as the old man, young man, a middle-aged person, child, baby of designated ratio and sex; And each population individuality is under the jurisdiction of a certain definite family; Said ratio can be imported by the modeling personnel by hand, and this ratio can obtain according to the statistics of the demographic data in the practical study zone; Wherein, Alone whether each individuality and family can determine, still flee from together between some kinsfolk the destruction information of road according to disaster evolution-information, the disaster of said disaster evolution module output; If certain individuals does not belong to certain family; This individuality will determine oneself to flee from, if certain individuals belongs to certain family, then the decision-making of fleeing from of this family is determined by the kinsfolk; Can confirm that the kinsfolk flees from the result of decision according to the form of questionnaire; Be that dissimilar family selects member oneself to flee from still with much ratios to flee from together,, then determine to be as the criterion with family if contradiction appears in individual decision with family; And the Traffic Net structure that further makes up module output according to said road network generates corresponding individual and flees from activity program with family, said flee from activity program comprise flee from constantly, assemble place and time, with fleeing from path, security purpose, the vehicles etc. of taking advantage of.
Wherein, For fleeing from constantly, owing to there are differences between men, it is different being in or being about to the moment that people on the line select when to leave the hazardous location; People are to meet certain probability distribution for fleeing from selection constantly; In order to meet the different needs, adopt following dual mode to confirm to flee from constantly: the one, the probability distribution of employing appointment is such as evenly distribution, normal distribution etc.; At this moment need confirm to flee from span constantly, and the numerical characteristic of stochastic variables such as average and variance; The 2nd, provide cumulative probability and distribute, at this moment need provide cut off value and corresponding probability thereof.
For fleeing from routing, fleeing from the principle that the routing behavior follows has following 3:
(1) the shortest principle of distance promptly selects to arrive that the shortest paths of security purpose ground length;
(2) the shortest principle of time promptly selects to arrive security purpose ground that minimum paths of time;
(3) the minimum principle of perception expense promptly selects to arrive that minimum paths of security purpose ground perception expense.
Select for security purpose ground, personnel when selecting security purpose ground, following several principles:
(1) security doctrine, promptly people only choose the destination of oneself thinking safety, can reaching and go to the place as the escape of oneself;
(2) nearby principle, promptly people select to go to the place from own nearest safety place as escape for flee danger is regional as soon as possible;
(3) randomly assigne, promptly people select a safety place to go to the place as escape at random.
For the vehicles of being taken advantage of, generally be meant car.
Such as, there are member adult A, adult B and old man C in certain family, and next interim when disaster, A drives along running away to safety place apart from shortest path after going home to connect the old man, and B drives alone along running away to safety place apart from shortest path.
The individual that the microscopic traffic simulation module generates according to said population and movable generation module and family flee from road network structure that activity program and said road network make up module output generate disperse the population, the movement locus (said movement locus refer to the position of each emulation moment vehicle) of vehicle on Traffic Net; Go back the generation system operating index simultaneously; Said system performance measure comprises evacuation speed; Be vehicle operating average velocity on the road section, the different number that arrives safety place constantly (specified in advance by the modeling personnel by said safety place; Such as can park, school etc. being made as safety place), 25% evacuation time (evacuate 25% population required time, promptly begin to flee from 25% personnel and arrive at the required time of safety place), 50% evacuation time (evacuating 50% population required time), 75% evacuation time (evacuating 75% population required time), 95% evacuation time (evacuating 95% population required time), 100% evacuation time (having evacuated whole population required times) etc. from first personnel.In the said microscopic traffic simulation module the related traffic behavior of movement locus of vehicle comprise vehicle with the traffic behavior speeding, freely change and vehicle only with the traffic behavior of speeding, not changing; In said microscopic traffic simulation module, dispersing the population, more activity program is fled from new route, security purpose ground etc. to the real-time dynamic information that can provide according to the disaster evolution-information of the current output of said disaster evolution module and emergent traffic evacuation administrative controls and administrative authority.
Wherein, in the said traffic behavior, the vehicle movement model comprises a type in following two class models at least: one type is discrete model, and like cellular Automation Model, one type is continuous model, like intelligent driving person's model.Said cellular Automation Model and said intelligent driving person's model are vehicle movement model general in this area; Specifically describe the article Congested Traffic States in Empirical Observations and Microscopic Simulations that delivers based on the traffic system modeling of cellular automaton and simulation, Martin Treiber etc. of work such as visible Jia Bin, do not give unnecessary details at this.
Statistical analysis module is according to mean value, minimum value, maximal value, the variance of the system performance measure computing system operating index of said microscopic traffic simulation module output; And export charts such as the time dependent histogram of said system performance measure, broken line graph, to make things convenient for the user data are handled, analyzed and report.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. one kind based on the emergent traffic evacuation system in the zone of activity, and it is characterized in that this system comprises: disaster evolution module, road network make up module, population and movable generation module, microscopic traffic simulation module, animation display module, statistical analysis module, wherein,
Said disaster evolution module is used to provide propelling in time, and disaster is to the destructiveness of road section, crossing;
Said road network makes up module and is used to create Traffic Net, and activity venues such as residential quarter, office space, refuge;
Said population and movable generation module make up module with said disaster evolution module and said road network respectively and are connected; It is used to produce different classes of dispersing the population; And according to the Information of Development of the disaster of said disaster evolution module output, disaster to the Traffic Net structure that the destructiveness and the said road network of road section, crossing makes up module creation, generate corresponding individual and family and flee from activity program;
Said microscopic traffic simulation module makes up module with said disaster evolution module, said road network respectively and is connected with said population and movable generation module; Individual that it is used for generating according to said population and movable generation module and family flee from the Traffic Net structure that activity program and said road network make up module creation; Generation is dispersed the population by means of the details motion process of different modes of transportation on Traffic Net, the i.e. movement locus of population, vehicle and system performance measure;
Said animation display module is connected with said microscopic traffic simulation module, its population, the movement locus of vehicle according to the output of said microscopic traffic simulation module, on human-computer interaction interface, show intuitively disperse the population, the motion process of vehicle;
Said statistical analysis module is connected with said microscopic traffic simulation module, and it carries out statistical study according to the system performance measure of the said microscopic traffic simulation module output traffic circulation situation when evacuating.
2. system according to claim 1; It is characterized in that said disaster evolution module adopts the XML file layout to store different disaster informations, specify disaster in scope that different time arrived; The population scope that is influenced, and to the destructiveness of road section, crossing.
3. system according to claim 1; It is characterized in that; Said road network makes up module and creates Traffic Net and playground with the graphic user interface form; The attribute of configuration Traffic Net and playground, and amplification to Traffic Net and playground be provided, dwindle, between two parties, the overall function of demonstration; Said road network makes up module and adopts the form of node-arc to describe the Traffic Net structure, adopts the form of node to come the describing activity place.
4. system according to claim 3 is characterized in that, the attribute of said Traffic Net and playground comprises at least: the character and the capacity in road width, lane width, number of track-lines, road speed limit, place; Said playground comprises: residential quarter, office space, school, shopping place, hospital, amusement and recreation place, diet place and refuge.
5. system according to claim 1; It is characterized in that; Said population and movable generation module produce all ages and classes section of designated ratio and dispersing the population of sex; Wherein, Each population individuality is under the jurisdiction of a certain definite family, and alone whether each individuality and family can be according to the disaster evolution-information of said disaster evolution module output, disaster to the destruction information decision of road, still flee between some kinsfolk together, and the Traffic Net structure that further makes up module output according to said road network generates corresponding individual and family flees from activity program.
6. system according to claim 5 is characterized in that, saidly flees from activity program and comprises and flee from constantly, assemble place and time, flee from path, security purpose ground, the vehicles of taking advantage of.
7. system according to claim 1; It is characterized in that said system performance measure comprises evacuation speed, evacuate number, 25% evacuation time, 50% evacuation time, 75% evacuation time, 95% evacuation time, 100% evacuation time that road network negative and degree, the different moment arrive safety place.
8. system according to claim 1 is characterized in that, in the said microscopic traffic simulation module the related traffic behavior of movement locus of vehicle comprise vehicle with the traffic behavior speeding, freely change and vehicle only with the traffic behavior of speeding, not changing.
9. system according to claim 1; It is characterized in that; In said microscopic traffic simulation module, disperse the population further to upgrade and flee from activity program according to the disaster evolution-information of the current output of said disaster evolution module and emergent traffic evacuation administrative controls and real-time dynamic information.
10. system according to claim 1; It is characterized in that; Said statistical analysis module is according to mean value, minimum value, maximal value, the variance of the system performance measure computing system operating index of said microscopic traffic simulation module output, and exports the time dependent chart of said system performance measure.
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| CN104750895A (en) * | 2013-12-30 | 2015-07-01 | 深圳先进技术研究院 | Real-time city emergency evacuation simulating method and system based on mobile phone data |
| CN106709100A (en) * | 2015-11-17 | 2017-05-24 | 清华大学 | Personnel evacuation simulation method and device, aid decision making method and system and emergency platform |
| CN107122874A (en) * | 2017-06-22 | 2017-09-01 | 上海交通大学 | Road control method for urban transportation emergency evacuation |
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| CN113689696A (en) * | 2021-08-12 | 2021-11-23 | 北京交通大学 | Multi-mode traffic collaborative evacuation method based on lane management |
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| CN103150608B (en) * | 2013-02-08 | 2016-03-02 | 同济大学 | A kind of region emergency evacuation capability evaluation system |
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| CN107122874A (en) * | 2017-06-22 | 2017-09-01 | 上海交通大学 | Road control method for urban transportation emergency evacuation |
| CN109636005A (en) * | 2018-11-16 | 2019-04-16 | 北京交通大学 | A kind of city road network Evacuation Strategies optimization method based on microscopic simulation |
| CN113689696A (en) * | 2021-08-12 | 2021-11-23 | 北京交通大学 | Multi-mode traffic collaborative evacuation method based on lane management |
| CN115472001A (en) * | 2022-07-25 | 2022-12-13 | 深圳市城市交通规划设计研究中心股份有限公司 | Simulation evaluation method for human-vehicle traffic evacuation in stadium, electronic device and storage medium |
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