JP2000082192A - Method and apparatus for calculating degree of congestion, and recording medium storing program for calculating congestion evaluation value - Google Patents
Method and apparatus for calculating degree of congestion, and recording medium storing program for calculating congestion evaluation valueInfo
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- JP2000082192A JP2000082192A JP25142098A JP25142098A JP2000082192A JP 2000082192 A JP2000082192 A JP 2000082192A JP 25142098 A JP25142098 A JP 25142098A JP 25142098 A JP25142098 A JP 25142098A JP 2000082192 A JP2000082192 A JP 2000082192A
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Abstract
(57)【要約】
【課題】 予測の処理時間を短縮し、かつ領域の渋滞度
の評価を行うことができるようにする。
【解決手段】 記憶部１１はリンク内の渋滞区間数を受
け取るとともに、これを記憶し、これを渋滞区間渋滞度
算出部１３とリンク渋滞度算出部１４に送出する。速度
変換部１２は渋滞区間の平均速度に対応した値を受け取
ると、これを速度に変換する。渋滞区間渋滞度算出部１
３は、記憶部１１から渋滞区間数を受け取り、渋滞区間
数の回数分繰り返して渋滞区間長と速度を受け取ると、
各渋滞区間の渋滞度を算出する。リンク渋滞速度算出部
１４はリンク長を受け取り、記憶部１１からリンク内の
渋滞区間数を受け取ると、渋滞区間数の回数分繰り返し
て渋滞区間渋滞部算出部１３から各渋滞区間の渋滞度を
受け取り、リンク内の渋滞区間数分の渋滞区間渋滞度か
らリンクの渋滞度を算出する。
(57) [Summary] [PROBLEMS] To reduce the processing time of prediction and to evaluate the degree of congestion in an area. A storage unit (11) receives the number of congested sections in a link, stores the number, and sends it to a congested section congestion degree calculation unit (13) and a link congestion degree calculation unit (14). When the speed converter 12 receives the value corresponding to the average speed of the congested section, it converts this to a speed. Congestion section congestion degree calculation unit 1
3 receives the number of congested sections from the storage unit 11 and repeats the number of congested sections to receive the congested section length and speed,
The congestion degree of each congestion section is calculated. The link congestion speed calculation unit 14 receives the link length, receives the number of congestion sections in the link from the storage unit 11, and repeats the number of congestion sections to receive the congestion degree of each congestion section from the congestion section congestion unit calculation unit 13. The link congestion degree is calculated from the congestion section congestion degrees for the number of congestion sections in the link.
Description
【０００１】[0001]
【発明の属する技術分野】本発明の交通情報システムに
関し、特に渋滞度算出方法および装置に関する。[0001] 1. Field of the Invention [0002] The present invention relates to a traffic information system according to the present invention, and more particularly to a method and an apparatus for calculating the degree of congestion.
【０００２】[0002]
【従来の技術】これまでの予測方法は、リンクの平均速
度や旅行時間など、リンク毎に与えられた量をもとに予
測するものであった。2. Description of the Related Art Conventional prediction methods have been based on an amount given to each link, such as an average speed of a link or travel time.
【０００３】[0003]
【発明が解決しようとする課題】これに対して、リンク
内の一つまたは複数の渋滞区間の長さと渋滞区間の平均
速度に対応する量がリンク毎に与えられるシステムにお
いてはリンク毎の量が与えられていないため、予測する
ことができなかった。また、リンクを細分化し、細分化
した小区間単位で従来法を適用することが考えられる
が、小区間数が膨大になるため、予測の処理時間が遅く
なってしまうという問題があった。また、複数のリンク
を含む領域の渋滞の評価を行うことができないという問
題があった。On the other hand, in a system in which an amount corresponding to the length of one or a plurality of congested sections in a link and an average speed of the congested section is provided for each link, the amount for each link is reduced. Because it was not given, it could not be predicted. Further, it is conceivable to apply the conventional method in units of subsections in which the link is subdivided, but there is a problem that the processing time of prediction becomes slow because the number of subsections is enormous. Further, there is a problem that it is not possible to evaluate traffic congestion in an area including a plurality of links.
【０００４】本発明の目的は、予測の処理時間を短縮す
ることができ、かつ領域の渋滞の評価を行うことができ
る渋滞度算出方法および装置を提供することにある。An object of the present invention is to provide a method and an apparatus for calculating the degree of congestion, which can reduce the processing time for prediction and can evaluate the congestion in an area.
【０００５】[0005]
【課題を解決するための手段】本発明の第１の渋滞度算
出方法は、あらかじめ定められたリンク内の渋滞区間の
長さと、各渋滞区間の平均速度に対応する値より各渋滞
区間の渋滞度を求め、求められた各渋滞区間の渋滞度と
当該リンクの長さより当該リンクの渋滞度を求める。According to a first method of calculating the degree of congestion of the present invention, the length of a congested section in a predetermined link and a value corresponding to the average speed of the congested section are calculated based on the value of the congested section in each link. The traffic congestion degree of each link is obtained from the congestion degree of each congested section and the length of the link.
【０００６】本発明の第２の渋滞度算出方法は、あらか
じめ定められた領域内の渋滞区間の長さと、渋滞区間の
平均速度に対応する値より各渋滞区間の渋滞度を求め、
求められた各渋滞間の渋滞度と当該領域内のリンクの長
さの総和より領域の渋滞度を求める。In a second method of calculating the degree of congestion of the present invention, the degree of congestion in each congested section is determined from the length of the congested section in a predetermined area and a value corresponding to the average speed of the congested section.
The congestion degree of the area is obtained from the sum of the congestion degree obtained between the congestion and the link length in the area.
【０００７】本発明の第１の渋滞度算出装置は、当該リ
ンク内の各渋滞区間の長さと、各渋滞区間の平均速度に
対応した値より各渋滞区間の渋滞度を算出する渋滞区間
渋滞度算出手段と、求められた各渋滞区間の渋滞度と当
該リンクの長さより当該リンクの渋滞度を算出するリン
ク渋滞度算出手段を有する。The first congestion degree calculating device of the present invention calculates the congestion degree of each congestion section from the value corresponding to the length of each congestion section in the link and the average speed of each congestion section. Calculating means for calculating the degree of congestion of the link from the determined congestion degree of each congested section and the length of the link;
【０００８】本発明の第２の渋滞度算出装置は、当該領
域内の渋滞区間の長さと、各渋滞区間の平均速度に対応
した値より各渋滞区間の渋滞度を算出する渋滞区間渋滞
度算出手段と、求められた各渋滞区間の渋滞度と当該領
域内のリンクの総和より領域の渋滞度を求める領域渋滞
度算出手段を有する。The second congestion degree calculating apparatus of the present invention calculates the congestion degree of each congestion section based on the length of the congestion section in the area and a value corresponding to the average speed of each congestion section. Means and means for calculating the degree of congestion in the area from the calculated congestion degree of each congested section and the sum of links in the area.
【０００９】本発明は、渋滞区間の長さと渋滞区間の平
均速度に対応する量より各渋滞区間の渋滞度を求め、求
められた渋滞区間毎の渋滞度と当該リンクの長さよりリ
ンクの渋滞度を求めるものである。According to the present invention, the degree of congestion of each congested section is determined from the length corresponding to the congested section and the average speed of the congested section, and the congestion degree of the link is determined from the determined congestion degree for each congested section and the length of the link. Is what you want.
【００１０】また、本発明は、領域内の渋滞度を求める
とともに、領域内のリンクの長さの総和を求め、領域内
の各渋滞区間の渋滞度とリンクの長さの総和より領域の
渋滞度を求めるものである。Further, the present invention obtains the degree of congestion in an area, obtains the sum of the lengths of the links in the area, and calculates the congestion degree of each area in the area and the sum of the lengths of the links. The degree is required.
【００１１】本方法は、渋滞情報が来ない区間があって
も、渋滞度を算出できる。なお、渋滞情報が来ない区間
とは、例として、渋滞していない区間等、つまり、平均
速度がほぼ同じであると考えられる区間である。その場
合、渋滞情報が来ていない部分である、全渋滞区間の長
さとリンクの長さの差を適当な速度で割り、各渋滞区間
の渋滞度を足し合わせ、領域内リンク全長で割ることで
渋滞度を算出できる。This method can calculate the degree of congestion even when there is a section where no congestion information comes. The section where no traffic congestion information comes is, for example, a section where there is no traffic congestion, that is, a section where the average speed is considered to be substantially the same. In that case, the difference between the length of the entire congestion section and the length of the link, which is the part where no congestion information is coming, is divided by an appropriate speed, the congestion degree of each congestion section is added, and the result is divided by the total length of the link in the area. The degree of congestion can be calculated.
【００１２】[0012]
【発明の実施の形態】次に、本発明の実施の形態につい
て図面を参照して説明する。以下の実施形態では、図１
に示すような、リンク内の各渋滞区間の長さと、平均速
度に対応した値が与えられる場合を例にとって説明す
る。Next, embodiments of the present invention will be described with reference to the drawings. In the following embodiment, FIG.
The case where a value corresponding to the length of each congested section in the link and the average speed as shown in FIG.
【００１３】図２を参照すると、本発明の第１の実施形
態の渋滞度算出装置は記憶部１１と速度変換部１２と渋
滞区間渋滞度算出部１３とリンク渋滞度算出部１４で構
成されている。Referring to FIG. 2, the congestion degree calculating device according to the first embodiment of the present invention comprises a storage unit 11, a speed conversion unit 12, a congestion section congestion degree calculation unit 13, and a link congestion degree calculation unit 14. I have.
【００１４】記憶部１１はリンク内の渋滞区間数を受け
取るとともに、これを記憶し、これを渋滞区間渋滞度算
出部１３とリンク渋滞度算出部１４に渋滞区間数を送出
する。The storage unit 11 receives and stores the number of congested sections in the link, and transmits the number to the congested section congestion degree calculation unit 13 and the link congestion degree calculation unit 14.
【００１５】速度変換部１２は渋滞区間の平均速度に対
応した値を受け取ると、これを速度に変換する。変換
は、例として、テーブルや関数などで行う。When the speed converter 12 receives a value corresponding to the average speed of the congested section, it converts this to a speed. The conversion is performed using a table or a function, for example.
【００１６】渋滞区間渋滞度算出部１３は、記憶部１１
からリンク内の渋滞区間数を受け取り、渋滞区間数の回
数分繰り返して渋滞区間長と速度を受け取ると、各渋滞
区間の渋滞度を算出する。算出方法としては、例とし
て、渋滞区間長を当該渋滞区間の速度で割るなどがあ
る。The congestion section congestion degree calculation unit 13 includes a storage unit 11
When the number of traffic congestion sections in the link is received from the server and the number of traffic congestion sections is repeated and the traffic congestion section length and the speed are received, the congestion degree of each traffic congestion section is calculated. As an example of the calculation method, there is a method of dividing the length of a congested section by the speed of the congested section.
【００１７】リンク渋滞度算出部は１４はリンク長を受
け取り、記憶部１１からリンク内の渋滞区間数を受け取
ると、渋滞区間数の回数分繰り返して渋滞区間渋滞度算
出部１３から各渋滞区間の渋滞度を受け取り、リンク内
の渋滞区間数分の渋滞区間渋滞度からリンクの渋滞度を
算出する。算出の方法としては、例として、各渋滞区間
における渋滞度を足し合わせ、これでリンクの長さを割
ることで求められる。When the link congestion degree calculating unit 14 receives the link length and receives the number of congested sections in the link from the storage unit 11, the link congestion degree calculating unit 13 repeats the number of congested section times for each congested section. The congestion degree is received, and the congestion degree of the link is calculated from the congestion section congestion degrees for the number of congestion sections in the link. As a calculation method, for example, it is obtained by adding the degree of congestion in each congestion section and dividing the link length by this.
【００１８】図３を参照すると、本発明の第２の実施形
態の渋滞度算出装置は記憶部２１と速度変換部２２と渋
滞区間渋滞評価値算出部２３と領域渋滞度算出部２４で
構成されている。Referring to FIG. 3, the congestion degree calculating device according to the second embodiment of the present invention comprises a storage unit 21, a speed conversion unit 22, a congestion section congestion evaluation value calculation unit 23, and an area congestion degree calculation unit 24. ing.
【００１９】記憶部２１は領域内の渋滞区間数を受け取
るとともに記憶し、渋滞区間渋滞度算出部２３と領域渋
滞度算出部２４に渋滞区間数を送出する。The storage unit 21 receives and stores the number of congested sections in the area, and sends the number of congested sections to the congested section congestion degree calculation unit 23 and the area congestion degree calculation unit 24.
【００２０】速度変換部２２は渋滞区間の平均速度に対
応した値を受け取ると、これを速度に変換する。変換
は、例として、テーブルや、関数などでおこなう。When the speed converter 22 receives a value corresponding to the average speed in the congested section, it converts this to a speed. The conversion is performed by using a table or a function as an example.
【００２１】渋滞区間渋滞度算出部２３は領域内の渋滞
区間長と速度を受け取り、記憶部２１から領域内の渋滞
区間数を受け取り、渋滞区間数の回数分繰り返して各渋
滞区間渋滞度を算出する。算出方法としては、例とし
て、渋滞区間長を当該渋滞区間の速度で割るなどがあ
る。The congestion section congestion degree calculation unit 23 receives the congestion section length and speed in the area, receives the number of congestion sections in the area from the storage unit 21, and repeats the number of congestion sections to calculate each congestion section congestion degree. I do. As an example of the calculation method, there is a method of dividing the length of a congested section by the speed of the congested section.
【００２２】領域渋滞度算出部２４は各リンク長と、当
該領域に含まれるリンク数を入力として受け取り、リン
ク数の回数繰り返してリンク長を足し合わせ、領域内リ
ンクの全長を求め、領域内の渋滞区間数を受け取り、渋
滞区間渋滞度算出部２３から各渋滞区間の渋滞度を受け
取ると、領域の渋滞度を算出し、出力する。領域の渋滞
度の算出の方法としては、例として、領域内渋滞区間の
数だけ各渋滞区間の渋滞度を足し合わせ、領域内リンク
全長で割ることで算出できる。The area congestion degree calculation unit 24 receives each link length and the number of links included in the area as inputs, repeats the number of links, adds the link lengths, obtains the total length of the intra-area links, When the number of congested sections is received and the congestion degree of each congested section is received from the congested section congestion degree calculation unit 23, the congestion degree of the area is calculated and output. As a method of calculating the congestion degree of the area, for example, it can be calculated by adding the congestion degrees of the congestion sections by the number of congestion sections in the area and dividing by the total length of the links in the area.
【００２３】図４を参照すると、本発明の第３の実施形
態の渋滞度算出装置は入力装置３１と記憶装置３２と出
力装置３３と記録媒体３４とデータ処理装置３５で構成
されている。Referring to FIG. 4, the congestion degree calculating device according to the third embodiment of the present invention comprises an input device 31, a storage device 32, an output device 33, a recording medium 34, and a data processing device 35.
【００２４】入力装置３１からは、当該リンクの各渋滞
区間の長さと平均速度に対応した値、当該リンク内の渋
滞区間数、リンク長が入力される。記憶装置３２は図１
中の記憶部１１に相当する。出力装置３３は算出された
リンク渋滞度が出力される、ディスプレイ、プリンタな
どの出力装置である。記録媒体３４は図２中の各部１２
〜１４の処理からなる渋滞度算出プログラムが記録され
た、フロッピーディスク、ＣＯ−ＲＯＭ、光磁気ディス
クなどの記録媒体である。データ処理装置３５は記録媒
体３４から渋滞度算出プログラムを読み取って、これを
実行するＣＰＵである。From the input device 31, a value corresponding to the length and average speed of each congested section of the link, the number of congested sections in the link, and the link length are input. The storage device 32 is shown in FIG.
It corresponds to the storage unit 11 inside. The output device 33 is an output device such as a display or a printer to which the calculated link congestion degree is output. The recording medium 34 corresponds to each unit 12 in FIG.
And a recording medium such as a floppy disk, a CO-ROM, or a magneto-optical disk on which a traffic congestion degree calculation program including the processes of (1) to (14) is recorded. The data processing device 35 is a CPU that reads the congestion degree calculation program from the recording medium 34 and executes the program.
【００２５】図５を参照すると、本発明の第４の実施形
態の渋滞度算出装置は入力装置４１と記憶装置４２と出
力装置４３と記録媒体４４とデータ処理装置４５で構成
されている。Referring to FIG. 5, the congestion degree calculating device according to the fourth embodiment of the present invention comprises an input device 41, a storage device 42, an output device 43, a recording medium 44, and a data processing device 45.
【００２６】入力装置４１からは領域内の各渋滞区間の
渋滞長さと平均速度に対応した値と領域内渋滞区間数と
リンク長と当該領域内のリンク数が入力される。記憶装
置４２は図３中の記憶部２１に相当する。出力装置４３
は算出された領域の渋滞度が出力される、フロッピィデ
ィスク、ＣＤ−ＲＯＭ、光磁気ディスクなどの記録媒体
である。記録媒体４４には図３中の各部２２〜２４の処
理からなる渋滞度算出プログラムが記録されている、フ
ロッピィディスク、ＣＤ−ＲＯＭ、光磁気ディスク等の
記録媒体である。データ処理装置４５は記録媒体４４か
ら渋滞度算出プログラムを読み込んで、これを実行する
ＣＰＵである。From the input device 41, a value corresponding to the congestion length and the average speed of each congestion section in the area, the number of congestion sections in the area, the link length, and the number of links in the area are input. The storage device 42 corresponds to the storage unit 21 in FIG. Output device 43
Is a recording medium, such as a floppy disk, CD-ROM, or magneto-optical disk, to which the calculated congestion degree of the area is output. The recording medium 44 is a recording medium, such as a floppy disk, a CD-ROM, or a magneto-optical disk, on which a congestion degree calculation program including the processes of the units 22 to 24 in FIG. 3 is recorded. The data processing device 45 is a CPU that reads the congestion degree calculation program from the recording medium 44 and executes the program.
【００２７】[0027]
【発明の効果】以上説明したように、本発明は、リンク
内の渋滞区間の長さと渋滞区間の平均速度に対応する量
と各リンクの長さがリンク毎に与えられるとき、リン
ク、領域における渋滞度を求めることにより、予測の処
理時間を短縮することができ、かつ領域における渋滞の
評価を行うことができる。As described above, according to the present invention, when the length of each congested section in a link, the amount corresponding to the average speed of the congested section, and the length of each link are given for each link, the present invention relates to By calculating the degree of congestion, the processing time for prediction can be reduced, and the congestion in the area can be evaluated.
【図１】リンク内の渋滞区間の例を示す図である。FIG. 1 is a diagram illustrating an example of a congested section in a link.
【図２】本発明の第１の実施形態の渋滞度算出装置の構
成図である。FIG. 2 is a configuration diagram of a congestion degree calculation device according to the first embodiment of the present invention.
【図３】本発明の第２の実施形態の渋滞度算出装置の構
成図である。FIG. 3 is a configuration diagram of a congestion degree calculation device according to a second embodiment of the present invention.
【図４】本発明の第３の実施形態の渋滞度算出装置の構
成図である。FIG. 4 is a configuration diagram of a congestion degree calculation device according to a third embodiment of the present invention.
【図５】本発明の第４の実施形態の渋滞度算出装置の構
成図である。FIG. 5 is a configuration diagram of a congestion degree calculation device according to a fourth embodiment of the present invention.
１１、２１ 記憶部 １２、２２ 速度変換部 １３、２３ 渋滞区間渋滞度算出部 １４ リンク渋滞度算出部 ２４ 領域渋滞度算出部 ３１、４１ 入力装置 ３２、４２ 記憶装置 ３３、４３ 出力装置 ３４、４４ 記録媒体 ３５、４５ データ処理装置 11, 21 storage unit 12, 22 speed conversion unit 13, 23 congestion section congestion degree calculation unit 14 link congestion degree calculation unit 24 area congestion degree calculation unit 31, 41 input device 32, 42 storage device 33, 43 output device 34, 44 Recording media 35, 45 Data processing device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀越 力 東京都新宿区西新宿三丁目19番２号 日本 電信電話株式会社内 (72)発明者 毛利 仁士 東京都新宿区西新宿三丁目19番２号 日本 電信電話株式会社内 (72)発明者 鈴木 智 東京都新宿区西新宿三丁目19番２号 日本 電信電話株式会社内 Ｆターム(参考） 5B049 BB31 CC31 CC40 DD05 EE03 EE12 FF02 FF03 FF04 FF09 5H180 AA01 BB13 DD04 EE02 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tsutomu Horikoshi Nippon Telegraph and Telephone Corporation 3-2-1, Nishishinjuku, Shinjuku-ku, Tokyo (72) Inventor Hitoshi Mohri 3-192, Nishishinjuku, Shinjuku-ku, Tokyo No. Within Nippon Telegraph and Telephone Corporation (72) Inventor Satoshi Suzuki 3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo F-Term within Nippon Telegraph and Telephone Corporation 5B049 BB31 CC31 CC40 DD05 EE03 EE12 FF02 FF03 FF04 FF09 5H180 AA01 BB13 DD04 EE02
Claims (6)
間の長さと、各渋滞区間の平均速度に対応する値より各
渋滞区間の渋滞度を求め、求められた各渋滞区間の渋滞
度と当該リンクの長さより当該リンクの渋滞度を求める
渋滞度算出方法。1. The degree of congestion in each congested section is determined from the length of a congested section in a predetermined link and a value corresponding to the average speed of each congested section. Congestion degree calculation method for calculating the degree of congestion of the link from the length of the link.
の長さと、各渋滞区間の平均速度に対応する値より各渋
滞区間の渋滞度を求め、求められた各渋滞区間の渋滞度
と当該領域内のリンクの長さの総和より当該領域の渋滞
度を求める渋滞度算出方法。2. The degree of congestion of each congested section is determined from the length of the congested section in a predetermined area and a value corresponding to the average speed of each congested section. Congestion degree calculation method for obtaining the degree of congestion in the area from the sum of the lengths of the links in the area.
渋滞区間の平均速度に対応した値より各渋滞区間の渋滞
度を算出する渋滞区間渋滞度算出手段と、 求められた各渋滞区間の渋滞度と当該リンクの長さより
当該リンクの渋滞度を算出するリンク渋滞度算出手段を
有する渋滞度算出装置。3. A congestion section congestion degree calculating means for calculating a congestion degree of each congestion section from a length corresponding to each congestion section in the link and a value corresponding to an average speed of each congestion section; A traffic congestion degree calculating device having link congestion degree calculating means for calculating the traffic congestion degree of the link from the traffic congestion degree and the length of the link.
区間の平均速度に対応した値より各渋滞区間の渋滞度を
算出する渋滞区間渋滞度算出手段と、 求められた各渋滞区間の渋滞度と当該領域内のリンクの
総和より当該領域の渋滞度を求める領域渋滞度算出手段
を有する渋滞度算出装置。4. A congestion section congestion degree calculating means for calculating the congestion degree of each congestion section from the length of the congestion section in the area and a value corresponding to the average speed of each congestion section; A congestion degree calculation device having an area congestion degree calculation unit for obtaining a congestion degree of the area from a total of the congestion degree and links in the area.
渋滞区間の平均速度に対応した値より各渋滞区間の渋滞
度を算出する渋滞区間渋滞度算出処理と、 求められた各渋滞区間の渋滞度と当該リンクの長さより
当該リンクの渋滞度を算出するリンク渋滞度算出処理を
コンピュータに実行させるための渋滞度算出プログラム
を記録した記録媒体。5. A congestion section congestion degree calculation process for calculating a congestion section congestion degree based on a length corresponding to each congestion section in the link and a value corresponding to an average speed of each congestion section; A recording medium on which a congestion degree calculation program for causing a computer to execute a link congestion degree calculation process of calculating the congestion degree of the link from the congestion degree of the link and the length of the link is recorded.
区間の平均速度に対応した値より各渋滞区間の渋滞度を
算出する渋滞区間渋滞度算出処理と、 求められた各渋滞区間の渋滞度と当該領域内のリンクの
総和より当該領域の渋滞度を求める領域渋滞度算出処理
をコンピュータに実行させるための渋滞度算出プログラ
ムを記録した記録媒体。6. A congestion section congestion degree calculation process of calculating a congestion section degree of each congestion section from a length corresponding to a congestion section length in the area and a value corresponding to an average speed of each congestion section; A recording medium on which a congestion degree calculation program for causing a computer to execute an area congestion degree calculation process for calculating a congestion degree of the area from a total of the congestion degree and links in the area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25142098A JP2000082192A (en) | 1998-09-04 | 1998-09-04 | Method and apparatus for calculating degree of congestion, and recording medium storing program for calculating congestion evaluation value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25142098A JP2000082192A (en) | 1998-09-04 | 1998-09-04 | Method and apparatus for calculating degree of congestion, and recording medium storing program for calculating congestion evaluation value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000082192A true JP2000082192A (en) | 2000-03-21 |
Family
ID=17222594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25142098A Pending JP2000082192A (en) | 1998-09-04 | 1998-09-04 | Method and apparatus for calculating degree of congestion, and recording medium storing program for calculating congestion evaluation value |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000082192A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008083908A (en) * | 2006-09-27 | 2008-04-10 | Xanavi Informatics Corp | Traffic status prediction apparatus |
| CN113160545A (en) * | 2020-01-22 | 2021-07-23 | 阿里巴巴集团控股有限公司 | Road network data processing method, device and equipment |
-
1998
- 1998-09-04 JP JP25142098A patent/JP2000082192A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008083908A (en) * | 2006-09-27 | 2008-04-10 | Xanavi Informatics Corp | Traffic status prediction apparatus |
| CN113160545A (en) * | 2020-01-22 | 2021-07-23 | 阿里巴巴集团控股有限公司 | Road network data processing method, device and equipment |
| CN113160545B (en) * | 2020-01-22 | 2024-06-11 | 阿里巴巴集团控股有限公司 | Road network data processing method, device and equipment |
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