CN201804444U - Traffic information management device based on GIS (geographic information system) for regional high-class road network - Google Patents

Abstract

The utility model relates to a traffic information management device based on a GIS (geographic information system) for a regional high-class road network, which comprises a database module, a road network basic information management module and a traffic status management decision-making module. The device can comprehensively manage all the traffic information in the regional road network, and display from all aspects the traffic running statuses of road sections, channels and road networks on a geographic information platform, so as to provide convenience for traffic managers to conduct real-time high-level traffic status application contexts such as traffic organization and management, issuance of travel information, detection of traffic time, emergency rescue, etc.

Description

Regional high-grade highway net traffic information management device based on GIS

Technical field

The utility model relates to a kind of intelligent transportation system, especially a kind of structure based on the traffic information management device under the regional high-grade highway net environment of GIS.

Background technology

Zone high-grade highway net is the high-level highway main channel of highway in China net, it is the main force of middle-long distance transportation, bear the transportation of valuable cargo, and take on the traffic support of national defense safety, therefore must guarantee highway unobstructed property, security, convenience, combat a natural disaster to protect the ability of leading to and emergency processing power.But at present, the informationization of China Higher level network of highways and intelligent degree and service level also have very big room for promotion, mainly show: road network internal information integration ability deficiency, fail to realize effective utilization of spatial information, traffic state information, road environment information, means of transportation information in the road network; Traffic circulation state in the road network is lacked science, accurate, quantitative description; Intelligent degree is not high, the decision support of lack of wisdom; The information service ability is not high, and the relevance of the degree of accuracy of the information content, validity, real-time and the information content lacks guarantee.Above problem has restricted the development of highway information system greatly, and the raising of network of highways overall operation efficient.Therefore, be necessary based on GIS technology, geography information modeling technique and network of highways traffic system operating mechanism, set up the high-grade highway net traffic information management device in the zone, whole transport information in the overall management Regional Road net, the traffic circulation state that comprehensively shows each highway section, passage, road network on the geographical information platform makes things convenient for traffic administration person to carry out senior traffic behavior application scenarioss such as traffic organization management, trip information issue, traffic time detection, emergency episode rescue when true.

Summary of the invention

The purpose of this utility model is, a kind of regional high-grade highway net traffic information management device based on GIS is provided, this device is based on the ArcGIS Geographic Information System and sets up comprehensive traffic information database under the road network environment, realize effective association, tissue, integration and the visualized management of all traffic datas in the network of highways, the scientific analysis and the organizational decision making of road grid traffic situation are provided for the road network management person, realize the overall sharing of transport information in the zone, promote the information service ability of road network infosystem comprehensively.

In order to realize above-mentioned task, the utility model is taked following technical solution:

A kind of regional high-grade highway net traffic information management device based on GIS is characterized in that this device is connected and composed by database module, road network Back ground Information administration module and traffic control decision-making module, wherein:

Database module comprises highway alignment database, means of transportation database, traffic state data storehouse, traffic event data storehouse, traffic management and control database and collecting device database.

Regional high-grade highway net traffic information management device based on GIS of the present utility model, can manage the whole transport information in the Regional Road net as a whole, the traffic circulation state that can comprehensively show each highway section, passage, road network on geographical information platform makes things convenient for traffic administration person to carry out senior traffic behavior application scenarios such as traffic organization management, trip information issue, traffic time detection, emergency episode rescue when true.

Description of drawings

Fig. 1 is the regional high-grade highway net traffic information management device formation synoptic diagram based on GIS;

Fig. 2 is the workflow diagram of traffic control decision-making module

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment

As shown in Figure 1, the regional high-grade highway net traffic information management device based on GIS of the present utility model is divided into database module, road network Back ground Information administration module and traffic control decision-making module and connects to form.Wherein:

Database module comprises highway alignment database, means of transportation database, traffic state data storehouse, traffic event data storehouse, traffic management and control database and collecting device database.

Database is based on ArcGIS Geographic Information System structure, and all database tables all comprise geographical attribute information, such as pile No., geographic coordinate, longitude, latitude etc.

The highway alignment database, what comprise is whole topology data information in the high-grade highway net, comprises key element layer information, turns to a layer information, the big line information of Regional Road, the little line information of highway.

The means of transportation database comprises the whole means of transportation information in the network of highways, comprises charge station, service area, refuelling station, parking lot, bridge, tunnel and traffic sign information.

The traffic state data storehouse comprises the traffic basic parameter information of obtaining from the collecting device that is laid in the road network, and discerns highway section, back, passage, road net traffic state information, and the traffic state data storehouse is a dynamic growth.

The traffic event data storehouse comprises each regional Weather information in the traffic event information of all generations in the road network and the road network, and this database is dynamic change.

Traffic management and control database comprises all road management and control measures of carrying out in the road network, comprises the switching of road, ring road, and control measures such as road speed limit also are dynamic changes.

The collecting device database comprises the collecting device information of laying on all highway sections, and the status data with collecting that collecting device does not stop sends the traffic state data storehouse to.

Above-mentioned highway alignment database comprises limit key element table, engages the key element table, turns to limit table, turning point table, the big circuit table of highway, the big circuit table of national highway, the big circuit table of provincial highway, the little circuit table of highway, the little circuit table of national highway, the little circuit table of provincial highway; The means of transportation database comprises bridge table, tunnel table, intersection oral thermometer, service area table, charge station's table, refuelling station's table, parking lot table, VMS table;

Above-mentioned traffic state data storehouse mainly comprises road section traffic volume state table, passage traffic behavior table, road net traffic state table;

Above-mentioned traffic event data storehouse mainly comprises traffic event data table and weather information table;

Traffic management and control database comprises traffic management and control table;

Above-mentioned collecting device storehouse comprises the collecting device table.

Road network Back ground Information administration module comprises that the user logins, the operational administrative of database, the operational administrative of ArcGIS geographical information platform, dynamic segmentation management, road network topology structured testing and the road network structure analysis of road network; Mainly carry out the road network Back ground Information whole maintenance and management, these management functions have been guaranteed the integrality and the accuracy of road network internal information, be to realize the senior application of system---the traffic control decision-making provides powerful guarantee.Its concrete function is:

1) user's login

Based on different system's user demand and purposes, system implementation user's differentiated control.The user need import the password of right user name in prompting frame when login system, carry out the demonstration validation identity after, but access to plant.

2) database with ArcGIS geographical information platform operational administrative

The comprehensive traffic information data of high-grade highway net provides operations such as inquiry to total data, editor, deletion, interpolation, makes things convenient for the user that the highway data are implemented effectively management.Data management can be carried out in tables of data by the control on the bookkeeping interface, also can be by carrying out on the visual platform of ArcGIS, database and ArcGIS display platform are one to one, as long as a side implements bookkeeping, the opposing party also can carry out synchronously, keeps the storage data in ArcGIS interface display and the database to be consistent.

3) road network topology structured testing

Road information in the high-grade highway net has formed complicated highway network topological structure through behind the topology model construction, the road network topology test module is responsible for the high-grade highway net is carried out omnibearing topological structure test, to guarantee the correctness of ArcGIS road network platform topological structure.The road network topology structured testing is primarily aimed at the key element floor of road network and turns to the layer line road, and test mainly comprises: turn to the elements position test in the test of key element layer ownership, key element layer connection test, the test of key element type, the test of key element subregion, the turning point, turn to a layer link test.

4) dynamic segmentation management

The dynamic segmentation administration module can be implemented unified management to the highway section of dynamic change in the system, has guaranteed the consistance and the accuracy of the character in the same highway section.

The dynamic segmentation administration module carries out segmentation based on highway pile No. system, can implement at different business demands at highway section management, when carrying out the managing queries of different demands, also can the various segmentations of sub-category demonstration on the ArcGIS display interface.Build together and found five kinds of segmentation criterias, be respectively administration segmentation, industrial grade segmentation, management unit's segmentation, roadbed (road surface) width, control measure collection segmentation.

The traffic control decision-making module comprises that traffic behavior early warning, traffic status identification, traffic events detection, traffic administration decision-making, perfect information path generate and traffic organization is dredged.Its concrete function is:

1, traffic status identification

The traffic status identification module is on the basis of basic traffic flow parameter, extract the characteristic parameter that can characterize traffic behavior, draw the real-time status of a traffic through a series of data processing and recognizer then, and compare, draw a traffic behavior qualitatively with corresponding discrimination standard.System can carry out the analysis identification of highway section, passage, road net traffic state according to the traffic behavior algorithm.

2, the perfect information path generates

The precision and the accuracy of inducing for realizing route, system definition a kind of perfect information induce the path, the full detail that has comprised path between starting point and the terminal point is as all information relevant with trip such as road structure thing, road equipment, traffic behavior, traffic control, meteorology.The perfect information that this module is responsible for generating under the complicated road network environment is induced the path, and inducing for the trip on the advanced road provides sound assurance.

3, road network structure analysis

The high-grade highway net is the complicated network of topological structure, the high-grade highway topology of networks is carried out the key point that complicacy is a research network of highways structural property, and the analysis result of road network topology structure can directly instruct traffic flow tissue and traffic administration decision-making.The road network structure analysis module of HNIMS can carry out road network complicacy, reliability, synchronism, group analysis.

4, traffic behavior early warning

Traffic behavior early warning module combines the data fusion technology, has set up the traffic behavior index system under the road network environment, and each level is carried out grading forewarning system.Influence degree by traffic behavior or measurement anomalous event, head of the queue and the position of tail of the queue and the concluding time of traffic events etc. of the character of differentiation traffic events, the order of severity, stage of living in, queuing, draw anomalous event to the influence that highway section, passage, road network level traffic behavior produce, effectively evade potential risks in the traffic circulation process, improve traffic circulation efficient.

5, traffic administration decision-making

The traffic administration decision-making module is responsible for the various features at regional high-grade highway net, in the highway section, passage, on the road net traffic state result of information, analyze the influence that unusual part or congestion status produce passage, road network level, strategy is dredged in the traffic organization that generates in emergency circumstances, and traffic is effectively managed, and has improved gerentocratic traffic administration decision-making level to a great extent.

The traffic control decision-making module is the critical function part of device, the workflow of implementing traffic control as shown in Figure 2, concrete job step is:

Step 201: beginning;

Step 202: from the traffic state data storehouse, read the real-time traffic states basic parameter, change step 203 over to;

Step 203: carry out the traffic status identification of highway section, passage, road network via the traffic status identification module, change step 204 over to;

Step 204: traffic behavior and the contrast of state warning index system with identifying change step 205 over to;

Step 205: judge and satisfy certain grade of warning index; If not, then change step 202 over to; If then change step 206 over to;

Step 206: judge whether to need to implement traffic organization; If not, then change step 202 over to; If then change step 207 over to;

Step 207: start the traffic administration decision support module and generate Traffic Organization, change step 208 over to;

Step 208: finished a traffic identification, early warning, management process, finished.

Claims (1)

1. the regional high-grade highway net traffic information management device based on GIS is characterized in that this device is connected and composed by database module, road network Back ground Information administration module and traffic control decision-making module, wherein:

Database module comprises highway alignment database, means of transportation database, traffic state data storehouse, traffic event data storehouse, traffic management and control database and collecting device database.

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