KR20040060626A - Traffic information providing system having reappearing the past and method thereof - Google Patents

Abstract

PURPOSE: A system and a method for feeding traffic information having the function of reproducing are provided to easily prove the optimum information by selectively reproducing past according to the request of a user. CONSTITUTION: A system for feeding traffic information having the function of reproducing comprises databases(22,33,41) stored with information including traffic information an optimal path based on the traffic information and map data and the starting point and destination of the path, a traffic information reproducing unit(62) reproducing the traffic information of a specific point of time with response to a past reproduction request message, a path investigation reproducing unit(63) reproducing the traffic information of the specific point of time and searching the path from the starting point to the destination, and an analyzing unit(64) analyzing the optimal path to a terminal.

Description

TRAFFIC INFORMATION PROVIDING SYSTEM HAVING REAPPEARING THE PAST AND METHOD THEREOF}

The present invention relates to a traffic information providing system and a method thereof, and in particular, a traffic information providing system for providing a driver with reliable optimal route information that can avoid a congested area by using traffic information indicating a flow of vehicles on a road; It's about how.

Conventional traffic information collection methods include a section detection method and a point detection method.

In the section detection method, a probe vehicle travels on a road and transmits information such as driving time and driving distance of a road section to a traffic information center through a wireless communication network or a wired communication network, and uses the information in the traffic information center. It is a method of calculating traffic information on each road.

The point detection method installs point detectors (loop detectors, infrared cameras, etc.) on the road, and transmits information such as traffic volume and vehicle driving speed from the device to the traffic information center. The traffic information is calculated.

Both of these methods yield traffic information for one road segment (the road between the intersection and the intersection, the road between the road junction and the road junction, and the road between the intersection and the road junction).

Based on the traffic information collected in this way and the current map information, the traffic information center calculates a route to avoid congested areas and transmits the route to the terminal mounted on the vehicle to inform the driver.

In the route search reflecting the traffic information, the route is different depending on the traffic information even for the same starting point and destination. Since the user does not grasp the traffic information of all roads when the route information is provided, the user may not trust whether the provided route is the optimal route reflecting the traffic information.

However, the conventional traffic information providing system only informs the user of the route information according to the current traffic information, and does not perform any operation of informing the user who is suspicious of the information that the route is the optimal route.

Therefore, the quality measurement for the information providing service is not made, and the cause such as the reason for providing the route information provided under the environment at that time is not obtained. As a result, there is a case that the user who makes a complaint or inquiries about the provided information cannot be answered clearly.

Therefore, the technical problem to be achieved by the present invention is to solve the above-mentioned conventional problems, to provide a user with traffic information including reliable route information.

In particular, the technical problem to be achieved by the present invention is to reproduce the situation when the path information was previously provided to the user, to search for a new path based on this, to analyze the reliability of the previously provided path information to the user The purpose of the present invention is to improve the reliability of information provision.

1 is a structural diagram of a traffic information generation system according to an embodiment of the present invention.

2 is an overall structural diagram of a traffic information providing system according to an exemplary embodiment of the present invention.

3 is a flowchart illustrating a process of providing route information according to an embodiment of the present invention.

4 is an exemplary diagram illustrating a structure of log information according to an embodiment of the present invention.

5 is a flowchart illustrating a past reproduction process according to an embodiment of the present invention.

6 is an exemplary diagram illustrating a structure of a message transmitted between a traffic information server and a past reproduction server according to an exemplary embodiment of the present invention.

7 is an exemplary view showing the function of the past reproduction server according to an embodiment of the present invention.

Traffic information providing system according to a feature of the present invention for achieving the technical problem, a system for generating and providing traffic information by communicating with a traffic information collector including a terminal mounted on a vehicle through a network, A database storing traffic information, map data, optimal routes calculated based on the collected traffic information and map data, information including a starting point and a destination of the route; A traffic information reproducing unit configured to reproduce the traffic information of the time point by receiving the traffic information corresponding to the time point from the database when a past reproduction request message for the predetermined time point is transmitted from the terminal; A route search reproducing unit which reproduces the map data of the viewpoint based on the map data provided from the database, and performs a past reproduction which searches for a route from the starting point to the destination based on the reproduced map data and traffic information; And an analysis unit for comparing and analyzing the searched path according to the past reproduction with the optimum path provided to the terminal at the time point, and providing the result to the terminal.

In addition, the traffic information providing system according to another aspect of the present invention is a system for generating and providing traffic information by communicating with a traffic information collector including a terminal mounted on a vehicle through a network, the traffic information from the traffic information collector A traffic information server that collects and stores the predetermined time slots; A map management server that stores map data and performs update of the map data; A route calculation server that calculates an optimal route from the requested starting point to the destination based on the map data and the traffic information; When the past reproduction request message for a predetermined time is transmitted from the terminal, the traffic information reproducing unit receives the traffic information corresponding to the time point from the traffic information server and reproduces the traffic information at the time point, and the map provided from the map management server. A route search reproducing unit for reproducing map data of the viewpoint based on the data, and performing a past reconstruction for searching a route from a starting point to a destination based on the reproduced map data and traffic information; a route and the viewpoint searched according to the past reconstruction A past reproduction server including an analysis unit for comparing and analyzing the paths provided to the terminal in the; And a data transmission / reception server for providing a message provided from the terminal to a corresponding server, and providing the terminal with an analysis result of the optimal route calculated by the route calculation server and the past reproduction server.

The traffic information providing system having such a feature may further include a log server for generating and storing log information including a traffic information collection time, a version of map data, a starting point and a destination used in calculating the optimum route.

Meanwhile, the past reproduction server receives log information corresponding to the time point according to the past reproduction request message from the log server, and the traffic information reproduction unit based on the traffic information collection time included in the log information. Traffic information corresponding to the collection time is received from the map, and the route search reproducing unit receives and reproduces the map data of the version from the map management server based on the map data version included in the log information.

Here, the log information is matched with the identifier of the user who requested the route information, and may further include a terminal unique number and a time for which the route information is requested.

In addition, the result of the analysis is the time taken to travel to the destination through the corresponding route, the optimum route provided to the terminal at the time and the route searched according to the past environment reproduction at the time of requesting the past reproduction, or the congestion degree for each route It is preferable to include.

A traffic information providing method according to another aspect of the present invention is a traffic information providing method for generating and providing traffic information by communicating with a traffic information collector including a terminal mounted on a vehicle through a network, the method comprising: a) Calculating and providing an optimal route according to a request for route information from a departure point to a destination; b) reproducing the traffic information for the time point when a past reproduction request for a predetermined time point is transmitted from the terminal which requested the route information; c) reproducing map data for said viewpoint; d) reproducing a route search from the departure point to the destination based on the reproduced traffic information and map data; e) comparing and analyzing a plurality of paths obtained by the path search reproduction with an optimal path previously provided to the terminal; And f) providing the analysis result to the terminal.

Here, the step a) includes the step of collecting traffic information for each section from the origin to the destination where the terminal requested the route information; Searching for a travelable route from the departure point to the destination based on the collected traffic information and current map data; And calculating an optimal route to avoid traffic congestion among the found routes and providing the optimal route to the terminal.

In addition, the traffic information providing method according to an aspect of the present invention, generating and storing log information including the traffic information collection time, the version of the map data, the starting point and destination used when providing the route information to the terminal; It may further include.

On the other hand, the step f) is the paths searched according to the past environment reproduction at the time of requesting the past reproduction and the optimal route provided to the terminal at the time, the time taken to travel to the destination through the corresponding path, or for each path An analysis result including a degree of congestion is provided to the terminal.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

1 is a block diagram of a traffic information generation system according to an embodiment of the present invention. 2 is a diagram showing the structure of a traffic information providing system according to a first embodiment of the present invention.

As shown in FIG. 1 and FIG. 2, the traffic information system 1 according to the first embodiment of the present invention includes a plurality of terminals 321 and 322 and a plurality of points that receive information from a plurality of GPS satellites 4. It is connected to the traffic information collector 3 which consists of the detectors 311-31n through the network (2, including wired and wireless networks).

In FIG. 1, the GPS satellite 4 is a system for measuring the position of all moving objects on the earth by calculating distance and distance fluctuation speed.

The terminals 321 and 322 are mounted on the probe vehicle, and receive GPS data from at least three or more GPS satellites 4 to generate current position data of the probe vehicle. The terminals 321 and 322 are connected to a GPS antenna for receiving radio waves from the GPS satellites 4, and the traffic information according to the signal from each GPS antenna, in particular, the section-specific traffic information including the travel time and distance for each section. Create Here, the terminal 3 is mounted on the vehicle as an example, but the terminal according to the present invention is not limited to being mounted on the vehicle, and may also be a terminal without a GPS reception function.

In addition, point detectors 311 to 31n may be installed in each section in which the vehicle travels, and point detectors 311 to 31n are installed for each section to generate information such as traffic volume and vehicle driving speed of the section. For example, it may include a sensor installed on the road, a closed circuit television (CCTV) installed on the road, and the like, and may also include a terminal of a monitor agent who is active on the road. Since the terminal and the point detector mounted in each vehicle are already known technologies, detailed descriptions of the structure and operation are omitted here.

The traffic information generated by the terminals 321 and 322 and the point detectors 311 to 31n are wirelessly transmitted to the traffic information center, that is, the traffic information providing system 1. At this time, it is natural that the wired network may be transmitted.

The traffic information providing system 1 collects and processes the traffic information transmitted from the terminals 321 and 322 and the point detectors 311 to 31n of each probe vehicle to generate current traffic information for each section on the road, and based on the current traffic information. It searches for and provides the best route to avoid the traffic congested area among the route from the origin to the destination requested by the user. Subsequently, the reliability of the path information provided to the user is analyzed by reproducing the environment at the time of providing the path information according to the request of the user.

To this end, as shown in FIG. 2, the traffic information providing system 1 includes a data transmission / reception server 10, a traffic information server 20, a route calculation server (RP) 30, and a map management server. 40, a log server 50, and a time management server (TMS) 60.

The data transmission / reception server 10 receives information provided from the terminals 321 and 322 and the point detectors 311 to 31n through the network 2 and provides the information to each server 20 to 60, and each server 20 to 60. Information provided from the terminal 2 is provided to the terminals 321 and 322 through the network 2. Information transmission and reception technology between the data transmission / reception server 10 and the terminals 321 and 322 and the point detectors 311 to 31n are already known, and thus detailed description thereof will be omitted.

The traffic information server 20 processes the information provided from the terminals 321 and 322 and the point detectors 311 to 31n in a processable form or divides the information into sections to generate current traffic information for each section. The traffic information processor 21 And the traffic information generated by the traffic information database 22 is stored for each section according to a generation time (a time zone in which the user requests route information, or a traffic information collection time).

The map management server 40 performs a change of the map data and an update process accordingly, and includes a map information database 41 in which map data for each region is stored.

For example, the map data may be largely divided into attribute information and figure information. Attribute information includes characteristics of roads formed for each region (names given for each road formed in a given region, links forming each road, node information for linking (IDs given to nodes, node location information, etc.) It includes information on the type of each road, the symbol that clearly shows the building or place formed around the road, and the type of the line representing the road. POI information indicating a point of interest (POI) (for example, a name indicating a corresponding position for each predetermined position, a position coordinate value, etc.), link shape, and the like, and the like, wherein the POI information includes a region or a corresponding point. Can be categorized by characteristic classification, such as whether the branch is a bank or a government office in a financial system, or by an information provider. The data may be stored for each section, and the section may be divided into, for example, a road, that is, a link unit, or may include a unit including two or more links. The version information of the is stored, so that it is possible to know whether the map data of the corresponding section is updated.

The route calculation server 30 calculates a route from the user's origin to the destination based on the traffic information for the specific section provided from the traffic information server 20 and the map data for the section provided from the map management server 40. The route search unit 31 for searching, the route processing unit 32 for calculating an optimal route to avoid congestion among the searched routes, and the route information (destination, starting point, optimal) provided to the user for each time zone where the user requests the route information. Route information database 33) is stored.

The log server 50 collects traffic information collected by the traffic information server 20, version information of map data used in calculating a route, and optimal route information calculated by the route calculation server 30 according to a user's request for route information. And a log information processing unit 51 for generating log information, and a log database 52 for storing the generated log information. In this case, log information may be stored for each time zone (hereinafter, referred to as a "request time zone") in which the user requests the route information.

The past reproduction server 60 is a server that processes a past reproduction request from a user who has previously requested path information. In an embodiment of the present invention, "reproducing the past" means to analyze the traffic conditions and map data of the past time zone where the user requested the route information in order to analyze the reliability of the route information previously provided to the user, thereby avoiding congestion again. It shows the process of calculating and reproducing an existing path, and compares the path calculated according to the past reproduction with the path previously provided to the user, and informs the user that the previously provided path is the optimal path.

To this end, when the past reproduction server 60 requests a past reproduction from the user, the past reproduction server 60 receives log information corresponding to the previous time zone, that is, the request time period, to perform the past reproduction from the log server 50 to control the past reproduction operation. The control unit 61 receives the traffic information of the requested time zone according to the log information from the traffic information server 20, and the traffic information reproducing unit 62 reproduces the traffic situation (traffic information) of the corresponding time zone, The route search reproducing unit 63 receives map data from the map management server 40 to reproduce the map of the corresponding time zone, and performs route searching based on the reproduced map and the reproduced traffic information. Analyze calculates the congestion level for each route, and tells the user that the route provided in the past request time period is the optimal route based on the calculated congestion degree. In addition to the analysis unit 64 to inform, in addition, it further comprises a statistical processing unit 65 for performing statistical processing of the data according to the past reproduction process.

Here, the components 61 to 65 have been shown to operate in the past reproduction server 60, but the present invention is not limited thereto, and may be implemented as independent servers to process corresponding functions. In addition, the functions of the parts are separated for convenience of description, but are not necessarily limited to the above separated state.

Next, a traffic information providing method according to an exemplary embodiment of the present invention will be described in more detail.

First, a description will be given of a processing process when a user requests route information in a specific time zone.

3 is a flowchart illustrating a path information providing process according to an embodiment of the present invention.

The user requests to provide route information in order to know the optimal route to the destination to be traveled while driving a predetermined section, and the terminal (for example, 321) of the vehicle together with the location information of the starting point (the departure point is the current location of the user). Or a user-specified location) and a route information request message (which may include a terminal unique number) including a destination to the traffic information providing system 1.

That is, the terminal 321 receives the GSP coordinate information from the plurality of GPS satellites 4 and generates location information of the current vehicle. GPS coordinate information includes data such as time (hour, minute, second), location information (latitude, longitude), date (year, month, day), speed, direction, number of satellites, etc. In this case, it is preferable to generate location information based on the transmitted GPS coordinate information only when the number of GPS satellites is less than or equal to the set number (eg, three). The location information generated as described above is processed together with the destination to which the user wants to go and is transmitted to the traffic information providing system 1 (S100).

When the route information request message is transmitted from the terminal 321, the traffic information server 20 of the traffic information providing system 1 receives information from the terminals 321 and 322 of each vehicle or the point detectors 311 to 31n installed in each section. Collect traffic information for each section.

That is, traffic information provided from the point detectors 311 to 31n or the terminals 321 and 322 installed in each section by the traffic information processing unit 21 of the traffic information server 20, for example, the traffic volume for each section, the vehicle traveling speed, and the traffic. After collecting the time and the like and processing, the processed traffic information is matched to the time when the route information request message is transmitted from the user, that is, the time zone where the user requests the route information, and is stored in the traffic information database 31 for each section ( S110 to S120).

When the traffic information collection by the traffic information server 20 is completed, the route search unit 31 of the route calculation server 30 is connected to the current version stored in the map information database 41 of the map management server 40. Based on the map data, all possible routes from the current location or the starting point of the user to the destination are searched for (S130).

Next, the route processing unit 32 of the route calculation server 30 may optimize the route to the destination in the shortest time by avoiding congestion among the searched multiple routes based on the traffic information collected by the traffic information server 20. The route is calculated (S140). As a method for calculating an optimal path according to an embodiment of the present invention, all methods that can be used in the art may be applied.

The calculated optimal path is processed to be transmitted to the terminal, and then transmitted to the terminal 321 of the user through the data transmission / reception server 10. Accordingly, the user is provided with optimal route information to avoid congestion to the destination (S150 to S160).

At this time, the calculated optimal route is matched to the time zone where the user requested the route information and stored in the route information database 33. When the process of providing such route information is completed, the log server 50 generates log information for reproducing the past based on the traffic information, route information, and map information collected in the user's route information request time zone (S170).

4 illustrates a configuration of log information according to an embodiment of the present invention.

As shown in FIG. 4, log information according to an embodiment of the present invention is matched with, for example, an identifier (a request source identifier) of a user who requested the route information, and includes a terminal unique number, a time for requesting route information, Traffic information collection time (applied traffic information time), version of map data used for calculating route (map version), starting point and destination (or destination) information (latitude and longitude), and whether or not an error occurred during route search Information indicating an error (error code), environment file version including various weights (e.g., inter-link rotation weight, link attribute weight, facility weight, road type weight, etc.) applied to the route search, and map for collecting traffic information. The information may further include a version of a total solution for drivers (TSD), a serial number which is a number of a customer who requested a path, and an overall size of log information. Here, since the environment file or TSD can be changed at any time, the version of the environment file or TSD can be recorded so that the changed contents can be reflected when reproducing the past.

The log information having such a structure is stored in the log database 52 of the log server 50 and used for subsequent past reproduction.

As described above, after the user's request for route information is made, the optimal route from the user's current location (or origin) to the destination is calculated and provided, and the user then reproduces the past to verify the reliability of the information provided. You can request

When the user requests the past reproduction for a predetermined time period, the traffic information providing system analyzes the reliability of the route information provided by performing the past reproduction and provides it to the user as follows.

5 illustrates a process of reproducing the past according to an embodiment of the present invention sequentially.

As shown in FIG. 5, when a past reproduction request message is transmitted from the user together with predetermined time information (time information that previously requested route information), the control unit 61 of the past reproduction server 60 is included in the message. The log information is requested while providing the time information to the log server 50 (S200 to S210).

The log server 50 reads log information of a time zone requested by the control unit 61 from the log database 52 and provides the log information to the control unit 61. The control unit 61 provides log information to the traffic information reproducing unit 62 and route search. It is provided to the reproducing section 63 to instruct the past reproducing.

Accordingly, the traffic information reproducing unit 62 transmits the traffic information request message including the traffic information collection time (applied time) included in the log information to the traffic information server 20, and thus the traffic information server 20 corresponds to the corresponding traffic information server 20. Traffic information according to the request message is provided to the traffic information reproducing unit 62.

6 illustrates a structure of a message transmitted between the traffic information reproducing unit and the traffic information server.

The traffic information request message transmitted from the traffic information reproducing unit 62 to the traffic information server 20 includes a header, a message number, and a time when the user requests route information, as shown in FIG.

In addition, the response message provided from the traffic information server 20 to the traffic information reproducing unit 62 according to the traffic information request message, as shown in FIG. 6B, includes a header, a message number, an application time, and a corresponding message. Traffic count, and traffic information. The traffic information included in the response message includes a section identifier, a passage time of the corresponding section, a vehicle passage speed, and a congestion degree, as illustrated in FIG. 6C.

Based on the response message, the traffic information reproducing unit 62 reproduces the traffic situation in the past, that is, the time zone where the user requested the route information.

Meanwhile, the route search reproducing unit 63 requests the map data of the corresponding version to the map management server 40 based on the map version included in the log information. The route search is based on the map, and the map data is continuously updated by new roads or changes. Thus, if the route search is performed based on the current map data at the time of the past reproduction, the map data based on the time zone requested by the user Path search is not reproduced. Therefore, the route search reproducing unit 63 performs the route search based on the map data having the version of the request time zone, and receives the map data of the version from the map management server 40. The map management server 40 may store map data for each version, and may also store map modification information for each version, that is, only map data information corresponding to the changed portion.

Therefore, the route search reproducing unit 63 may take the map data of the corresponding version and use it for the route search or reproduce the map data of the request time zone based on the modified information of the version (S220 to S230).

As such, when the past reproduction environment including the map and the traffic information corresponding to the time zone for which the user requested the past reproduction is configured, the route search reproducing unit 63 logs the log based on the past environment reproduced in this way, that is, the map data and the traffic information. Search for possible routes from the origin to the destination included in the information. That is, the path search is reproduced (S240).

Next, the analysis unit 64 analyzes the travel time, congestion degree, etc. for each searched route, compares the best route previously provided to the user based on the analysis result of the searched route according to the past reproduction, and provides the route. Proves that it was the best route in the traffic situation at that time (S250).

Based on the comparison result, a past reconstruction analysis result is generated, and the analysis unit 64 provides the result information to the terminal 321 through the data transmission / reception server 10 so that the user can check it.

The past reproduction analysis result provided to the terminal may include, for example, a time taken to travel to a destination through the corresponding route, or the congestion degree for each route, for each route searched according to the past environment reproduction in the request time zone. Accordingly, the user may compare the traveling time or congestion of each searched route with the traveling time and congestion of the optimal route previously provided, and confirm that the information provided by the user was the optimal information.

On the other hand, the past reproduction server 60 may process the route request statistics by using the log information, the statistics processing unit 65 based on the log information daily route requests, the number of monthly route requests, major waypoints between the starting point and destination, etc. Statistics can be processed.

FIG. 7 illustrates a function performed by a past reproduction server according to a request of an administrator system not shown, according to an exemplary embodiment of the present invention.

For example, as shown in FIG. 7, in response to a request from a non-illustrated manager system (M-RP), the historical reproduction server provides log information, route search success / failure counts by customer, past traffic information, or historical reproduction. It performs route search in the environment and also provides links and node information in the past reproduction environment. Also, the predetermined log file is removed at the request of the administrator system.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. Fall within the scope of rights

According to the present invention, it is possible to easily prove that the provided route information is the optimal information by selectively performing the past reproduction with respect to the route information provided to the user according to the traffic situation.

Accordingly, the user can confirm that the information provided by the user is optimal information, and as a result, the user's reliability of the provided service is improved.

In addition, the quality of the service provided to the user is measured, and it is easy to determine the cause such as the reason for providing the route information provided under the environment at that time.

In addition, the quality of service is improved because the user can clearly answer the user who complains or inquires about the provided information.

Claims (10)

In the system for generating traffic information by communicating with a traffic information collector including a terminal mounted on the vehicle through a network, A database storing traffic information, map data, optimal route calculated based on the collected traffic information and map data, and information including a starting point and a destination of the route at a request of the terminal; A traffic information reproducing unit configured to reproduce the traffic information of the time point by receiving the traffic information corresponding to the time point from the database when a past reproduction request message for the predetermined time point is transmitted from the terminal; A route search reproducing unit which reproduces the map data of the viewpoint based on the map data provided from the database, and performs a past reproduction which searches for a route from the starting point to the destination based on the reproduced map data and traffic information; And An analysis unit for comparing and analyzing the path searched according to the past reproduction with the optimum path provided to the terminal at the time point and providing the result to the terminal Traffic information providing system comprising a. In the system for generating traffic information by communicating with a traffic information collector including a terminal mounted on the vehicle through a network, A traffic information server that collects traffic information from the traffic information collector and stores the traffic information at predetermined time slots; A map management server that stores map data and performs update of the map data; A route calculation server that calculates an optimal route from the requested starting point to the destination based on the map data and the traffic information; When the past reproduction request message for a predetermined time is transmitted from the terminal, the traffic information reproducing unit receives the traffic information corresponding to the time point from the traffic information server and reproduces the traffic information at the time point, and the map provided from the map management server. A route search reproducing unit for reproducing map data of the viewpoint based on the data, and performing a past reconstruction for searching a route from a starting point to a destination based on the reproduced map data and traffic information; a route and the viewpoint searched according to the past reconstruction A past reproduction server including an analysis unit for comparing and analyzing the paths provided to the terminal in the; And A data transmission / reception server for providing a message provided from the terminal to a corresponding server, and providing the terminal with an analysis result of the optimal route calculated by the route calculation server and the past reproduction server. Traffic information providing system comprising a. The method according to claim 1 or 2 And a log server for generating and storing log information including a traffic information collection time, a map data version, a starting point, and a destination used when calculating the optimum route. The method of claim 3, The past reproduction server Receiving log information corresponding to the time point from the log server according to the past reproduction request message; The traffic information reproducing unit receives traffic information corresponding to the collection time from the traffic information server on the basis of the traffic information collection time included in the log information, The route search reproducing unit receives and reproduces the map data of the version from the map management server based on the map data version included in the log information. The method of claim 3, The log information is matched with an identifier of the user who requested the route information, and further includes a terminal unique number and a time for which the route information is requested. The method according to claim 1 or 2 The analysis results Providing traffic information including time taken to travel to a destination through the corresponding route, for each route searched according to the past environment reproduction at the time of requesting the past reproduction, and the optimum route provided to the terminal at the time, or the congestion degree for each route system. In a traffic information providing method for communicating with a traffic information collector including a terminal mounted on a vehicle through a network to generate and provide traffic information a) calculating and providing an optimum route according to a request for route information from a terminal to a destination; b) reproducing the traffic information for the time point when a past reproduction request for a predetermined time point is transmitted from the terminal which requested the route information; c) reproducing map data for said viewpoint; d) reproducing a route search from the departure point to the destination based on the reproduced traffic information and map data; e) comparing and analyzing a plurality of paths obtained by the path search reproduction with an optimal path previously provided to the terminal; And f) providing the analysis result to the terminal Traffic information providing method comprising a. The method of claim 7, Step a) Collecting, by the terminal, traffic information for each section from a departure point to a destination for which route information is requested; Searching for a travelable route from the departure point to the destination based on the collected traffic information and current map data; And Calculating an optimal route to avoid traffic congestion among the found routes and providing the optimal route to the terminal; Traffic information providing method comprising a. The method of claim 7, And generating and storing log information including a traffic information collection time used for providing route information to the terminal, a version of map data, a starting point and a destination. The method of claim 7, Step f) Analysis results including the time taken to travel to the destination through the corresponding route, the optimal route provided to the terminal at the time point, and the congestion degree for each route according to the past environment reproduction at the time of requesting the past reproduction. Traffic information providing method provided to the terminal.