EP1303845B1 - Method for determining traffic related information - Google Patents
Method for determining traffic related information Download PDFInfo
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- EP1303845B1 EP1303845B1 EP01951687A EP01951687A EP1303845B1 EP 1303845 B1 EP1303845 B1 EP 1303845B1 EP 01951687 A EP01951687 A EP 01951687A EP 01951687 A EP01951687 A EP 01951687A EP 1303845 B1 EP1303845 B1 EP 1303845B1
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- function
- mobile detector
- traffic situation
- average speed
- speed
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
Definitions
- the invention relates to a method for determining traffic situation information within a transport network using mobile detectors, in particular Vehicles of a sample fleet, which have a terminal, a center for Determination of traffic situation information within a traffic network, the at least from a mobile detector receives data of its geographical position, a Terminal in a mobile detector, the at least one Positioning device includes or is connected to this, and a Data processing device and a device for data exchange with the Central includes, as well as a software program product directly into an internal Memory of a central office and / or the terminal of a mobile detector can be loaded.
- the recording and description of the traffic situation is an essential task in the The field of transport telematics, which for example has the objective of To inform situations with traffic obstructions and to take these situations too equalize and, where appropriate, by appropriate anticipatory diversion of Road users on less-strained routes.
- Another task consists of identifying information for traffic and road network planning.
- the German patent application DE 195 21 919 A1 proposes a method for determining traffic situation information in which the detected vehicle and position data are already assigned in the vehicle operating as a detector to at least one predetermined class of vehicle and position data corresponding to a specific typical vehicle behavior become. These classes are called vehicle behavior patterns.
- the assigned vehicle behavior pattern is transferred with the position data of the vehicle at least partially in coded form to the traffic control center.
- the terminal then located in the evaluation state t 0 now checks the detected speed values in comparison to the limit speed and interprets after passing through a time t 0 + t 1 the traffic condition on the route section as a total traffic disturbance when the mobile detector is driven at a lower speed than the deposited limit speed. If the terminal analyzed a traffic status as disturbed, a corresponding data telegram is generated and transmitted to the traffic center via a mobile radio network.
- the disadvantage of the previously known methods lies in the fact that a large number is generated by incorrect and / or non-relevant messages, in particular longer stops before traffic lights, barriers, etc. in the inner city area as well as braking operations before passing through towns are recognized as traffic disruptions and passed on to the customer.
- the object of the invention is the determination of traffic situation information perform so that the number of wrong and / or irrelevant Traffic situation information is further reduced and an accurate picture of the traffic situation is obtained.
- the processable data of the sections or the road network, which for Traffic situation are used, for example, after a method as described in DE 100 52 109 generated.
- the following steps carried out In a preferably first process step, the middle Speed of a mobile detector on at least one of his vehicles Track section determined.
- the determination of the standard deviation of the from the detector driven speed of the medium speed or the Average speed on the traveled section and / or the Sum of the downtime of the mobile detector with respect to the travel time of the mobile detector mobile detector on the route section this is the sum of the travel times preferably given in relation to the travel time.
- the determined standard deviation of the traveled section is called Function of medium speed on the traveled section with at least one borderline, depending on the standard deviation and the average speed is set.
- the standard deviation and the mean speed a point in one out Standard deviation and mean velocity formed coordinate system set, for example, in an area next to or on the at least one Borderline lies.
- a comparison of the sum of downtime in proportion Travel time on the traveled section as a function of the middle Speed on the section of track with at least one boundary running in Reference to the sum of downtimes on the traveled section and the medium speed is set to be performed.
- a coordinate system from the ratio of the sum of Downtimes to the travel time on the predefined section and the medium speed formed on the stretch of track.
- this Coordinate system will have at least one boundary to the definition of Traffic conditions and determines the coordinate point, the sum of the Downtime at travel time and medium speed is formed in the Coordinate system described.
- the Determination of the traffic situation on the route section as a function of the comparison the standard deviation as a function of the mean velocity and / or in Dependence of the comparison of the sum of the idle times in relation to Travel time as a function of the average speed with the respective borderline.
- Each of the boundary curves preferably defines the boundary between two Traffic conditions.
- both for the standard deviation as Function of the average speed as well as for the sum of the downtimes as Function of the medium speed can be provided several borderlines, the different traffic conditions, such as "traffic jam”, “dense”, “slow-moving traffic” or “Free”, define.
- the Boundaries have a so-called hysteresis, that is, depending on, from Whichever traffic condition a change in the border starts from is another value or to use the value curve of the limit curve.
- An embodiment of the invention further provides that the boundary curves for the definition the traffic conditions depending on the road type (motorway, country road etc.) be determined.
- the borderlines route-dependent.
- such parameters as curve radii, Gradients, etc. play a role.
- the invention further provides in an embodiment of the invention that the Limits depending on the infrastructure (intersections, traffic lights, inputs and Exits and the type of development on the route section, etc.). Also, a time-dependent definition of the boundaries is possible, so can Example in the traffic other limits than the weekend.
- boundary processes are not static but be set dynamically, a situation changes on a stretch of road, the boundary processes are adapted to the respective situation.
- At least in Dependence of the maximum permissible speed on a section of road Traffic position determination as a function of the standard deviation as a function of mean speed and / or depending on the sum of downtime as Function of medium speed is done. This is preferably done on highways and highways a traffic situation determination depending on the standard deviation and On urban roads, a traffic situation determination depending on the downtime on the track sections. However, it is also traffic situation investigations in dependence the standard deviation and downtimes conceivable.
- Another embodiment of the invention provides that at least infrastructure dependent a traffic situation determination as a function of the standard deviation as a function of mean speed and / or depending on the sum of downtime as Function of medium speed is done.
- the traffic situation determination additionally the Acceleration behavior of the mobile detector is used. This has the Advantage that a more accurate distinction between traffic signal phases and a traffic jam A section of the route can be distinguished.
- the traffic situation determination can be both in a central office as also be performed in the mobile detector. If the investigation takes place at the headquarters, sends the respective mobile detector at least its temporal position data to the Central, which can determine speeds from it. However, it can also be provided be that the respective mobile detector additionally sends its speed data. If the traffic situation is determined directly by the mobile detector, an embodiment provides that the mobile detector receives data of an expected or current traffic situation, and sends traffic situation data to the control center only when the traffic situation changes. There is also the possibility that the mobile detector does not keep its data during the drive to the central office, but the data after the end of the journey be handed over. Such a method can, for example, in the Traffic infrastructure planning are used.
- the center for the determination of traffic situation information is designed such that it can carry out the method according to the invention and / or performs. It has a data communication connection to the mobile Detectors on which they position data and possibly driving condition data of the receives mobile detector.
- a terminal is provided in a mobile detector, at least a position-determining device is included or connected to it, and a Data processing device and a device for data exchange with a Central, wherein the terminal for performing the inventive Method is formed.
- An embodiment of the terminal provides that the terminal its speed determined from his temporal position data. However, it can reduce the speed of the mobile detector from a vehicle speed sensor or off Determine driving status data.
- Fig. 1 is a system for detecting traffic situation information on one of at least one mobile detector 1, in particular a vehicle of a Sample fleet, traveled route shown.
- the terminal 1a of a mobile Detector 1 has a position determination device for determining the geographical coordinates of its current location, preferably one Satellite based detection device 2, a data processing device 6 and a device 4 for bidirectional data communication with a corresponding one Communication device of a central station 3.
- the terminal 1a communicates the terminal 1a via a point-to-point method with the center 3 and sends in the simplest case its time recorded geographical coordinates to the central office 3, resulting from the temporal change of the geographic coordinates of the mobile detector 1 by means of the inventive Process the traffic situation on a section of the route and / or travel times determined the route section.
- the Terminal 1a in the data processing device 6 itself from the position data Speed of the mobile detector detected or by a detection device receives and with the aid of the inventive method determines the traffic situation and depending on predefined criteria, for example depending on the comparison with current and / or expected values with data of the concerned Route section, as for example, according to a method as described in the DE 100 52 109 is generated, sends to the center 3.
- the data of Sections or a traffic network are either in the data processing device 6 stored or the mobile detectors. 1 via a communication method, for example, depending on their position of the central office 3 transmitted.
- the inventive method using a concrete example explained in more detail.
- the to be judged Traffic route network which only covers the sections of the actual road network includes, which seem relevant for a traffic situation assessment, in three Divided road types. These are once the highways and highways with a lot high permissible maximum speed, the country roads and the city streets with Traffic lights and intersections.
- the standard deviation ⁇ is used in the exemplary embodiment as a function of the average speed v m of the mobile detector 1 on the route section AB.
- the instantaneous velocity v i of the mobile detector 1 is detected continuously or at defined time intervals or calculated from the time profile of the position data on the section AB, from the average velocity v m of the mobile detector 1 on the section determined and from the standard deviation ⁇ of determined by the mobile detector 1 speed v i determined by the average speed v m .
- the standard deviation ⁇ is calculated according to the following formula: where n is the number of determined time positions of the mobile detector.
- FIG. 2 a shows a plurality of courses of the speed v i and the average speed v m on the route section AB for different traffic conditions.
- the standard deviation ⁇ is calculated as a function of the mean velocity v m for each of the velocity profiles v 1, v 2 , v 3 and compared with different boundary gradients G1, G2, G3, which define different traffic conditions on the segment AB, the traffic situation is obtained during the travel of the mobile detector 1 on the route section. While traveling on the section at the speed v 1 , the mean velocity v m1 was relatively low, but the standard deviation ⁇ due to a stop-and-go behavior of the mobile detector 1 but very large, it is a "jam" recognized.
- the speed v 2 speed shows a mean speed v m of about 80 km / h with a lower standard deviation ⁇ .
- the drive at the speed v 3 shows a high average speed v m with a small standard deviation ⁇ .
- the section AB is free.
- a hysteresis H was additionally introduced here for each boundary course.
- 3a shows the speed profiles v 4, v 6 for two journeys of mobile detectors 1 on a section AB of a city street.
- the stationary component S is the travel time t over the section AB during the drive at the speed v 5 relatively large and the average velocity v m low.
- the percentage standstill component S as a function of the mean velocity v m is compared with the boundary profiles G1 and G2 (FIG. 3b), it can be stated that the route segment was jammed. However, was v while driving at the speed of the link 4 free. If necessary, the standard deviation can be considered as an additional criterion when determining the traffic situation on city streets.
- both the number of the boundary G and their course compared to a traffic situation on highways and highways may be different.
- the traffic in the opposite direction of travel ie the traffic situation on the counter lane and / or the acceleration of the mobile detector 1 is taken into account.
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Ermittlung von Verkehrslageinformationen innerhalb eines Verkehrsnetzes mit Hilfe von mobilen Detektoren, insbesondere Fahrzeugen einer Stichprobenflotte, die ein Endgerät aufweisen, eine Zentrale zur Ermittlung von Verkehrslageinformationen innerhalb eines Verkehrsnetzes, die zumindest von einem mobilen Detektor Daten seiner geographischen Position erhält, ein Endgerät in einem mobilen Detektor, das zumindest eine Positionsbestimmungseinrichtung beinhaltet oder mit dieser verbunden ist, und eine Datenverarbeitungseinrichtung und eine Einrichtung zum Datenaustausch mit der Zentrale umfasst, sowie ein Softwareprogrammprodukt, das direkt in einen internen Speicher einer Zentrale und/oder des Endgerätes eines mobilen Detektors ladbar ist.The invention relates to a method for determining traffic situation information within a transport network using mobile detectors, in particular Vehicles of a sample fleet, which have a terminal, a center for Determination of traffic situation information within a traffic network, the at least from a mobile detector receives data of its geographical position, a Terminal in a mobile detector, the at least one Positioning device includes or is connected to this, and a Data processing device and a device for data exchange with the Central includes, as well as a software program product directly into an internal Memory of a central office and / or the terminal of a mobile detector can be loaded.
Die Erfassung und Beschreibung der Verkehrslage ist eine wesentliche Aufgabe im Bereich der Verkehrstelematik, die beispielsweise das Ziel hat, Verkehrsteilnehmer über Situationen mit Verkehrsbehinderungen zu informieren und diese Situationen zu entzerren und gegebenenfalls durch entsprechende vorausschauende Umlenkung von Verkehrsteilnehmern auf weniger belastete Strecken zu vermeiden. Eine andere Aufgabe besteht in der Ermittlung von Informationen für die Verkehrs- und Strassennetzplanung.The recording and description of the traffic situation is an essential task in the The field of transport telematics, which for example has the objective of To inform situations with traffic obstructions and to take these situations too equalize and, where appropriate, by appropriate anticipatory diversion of Road users on less-strained routes. Another task consists of identifying information for traffic and road network planning.
Es sind verschiedenste Lösungen zur Ermittlung von Verkehrsinformationen bekannt. So ist aus der deutschen Offenlegungsschrift DE 195 08 486 ein Verfahren zur Ermittlung von Verkehrslage- oder Strassenzustandsdaten bekannt, bei dem einzelne als "Floating cars" bezeichnete Stichprobenfahrzeuge vorbestimmte Fahrzeugdaten und dazugehörige Positionsdaten an eine Verkehrszentrale übermitteln. Die Verkehrszentrale ermittelt über die empfangenen Daten anhand bestimmter Algorithmen die Verkehrslage.Various solutions for the determination of traffic information are known. So is from the German patent application DE 195 08 486 a method for determining traffic situation or road condition data, in which some are known as "floating cars "designated sample vehicles predetermined vehicle data and transmit corresponding position data to a traffic center. The traffic center determines the traffic situation via the received data based on certain algorithms.
Die deutsche Offenlegungsschrift DE 195 21 919 A1 schlägt ein Verfahren zur Ermittlung von Verkehrslageinformationen vor, bei dem die erfassten Fahrzeug- und Positionsdaten bereits in dem als Detektor arbeitenden Fahrzeug mindestens einer vorgegebenen Klasse von Fahrzeug- und Positionsdaten, die einem bestimmten typischen Fahrzeugverhalten entsprechen, zugeordnet werden. Diese Klassen werden als Fahrzeugverhaltensmuster bezeichnet. Das zugeordnete Fahrzeugverhaltensmuster wird mit den Positionsdaten des Fahrzeuges mindestens teilweise in kodierter Form an die Verkehrszentrale übergeben. In der EP 789 341 A1 wird weiterhin vorgeschlagen, zur Ermittlung von Verkehrslageinformationen im Endgerät des mobilen Detektors als Fahrzeugdaten die Geschwindigkeit des Fahrzeuges heranzuziehen, indem diese fortlaufend erfasst und im Endgerät im Vergleich zu einer als Referenz im Detektor bekannten Grenzgeschwindigkeit ausgewertet wird, um bei Unterschreiten dieser Grenzgeschwindigkeit eine unterhalb des Schwellenwertes liegende Verkehrszustandsänderung zu erkennen. Das sich daraufhin im Auswertezustand t0 befindliche Endgerät überprüft nun die erfassten Geschwindigkeitswerte im Vergleich zur Grenzgeschwindigkeit und interpretiert nach Durchlaufen einer Zeit t0 + t1 den Verkehrszustand auf dem Streckenabschnitt insgesamt als Verkehrsstörung, wenn der mobile Detektor mit einer geringeren Geschwindigkeit gefahren ist als die hinterlegte Grenzgeschwindigkeit. Wurde vom Endgerät ein Verkehrszustand als gestört analysiert, wird ein entsprechendes Datentelegramm erzeugt und über ein Mobilfunknetz an die Verkehrszentrale übermittelt.The German patent application DE 195 21 919 A1 proposes a method for determining traffic situation information in which the detected vehicle and position data are already assigned in the vehicle operating as a detector to at least one predetermined class of vehicle and position data corresponding to a specific typical vehicle behavior become. These classes are called vehicle behavior patterns. The assigned vehicle behavior pattern is transferred with the position data of the vehicle at least partially in coded form to the traffic control center. In EP 789 341 A1, it is further proposed to use the speed of the vehicle as the vehicle data for determining traffic position information in the terminal of the mobile detector by continuously recording it and evaluating it in the terminal in comparison to a limit speed known as reference in the detector in order to fall below it This border speed to detect a below the threshold traffic condition change. The terminal then located in the evaluation state t 0 now checks the detected speed values in comparison to the limit speed and interprets after passing through a time t 0 + t 1 the traffic condition on the route section as a total traffic disturbance when the mobile detector is driven at a lower speed than the deposited limit speed. If the terminal analyzed a traffic status as disturbed, a corresponding data telegram is generated and transmitted to the traffic center via a mobile radio network.
Ähnliche Verfahren sind beispielsweise aus der US 5 539 645, der US 5 483 446 und der JP-A-07 234 989 bekannt.Similar processes are described, for example, in US Pat. No. 5,539,645 US 5,483,446 and JP-A-07,234,989.
Der Nachteil der vorbekannten Verfahren liegt vor allem darin, dass eine Grosse Anzahl von fehlerhaften und/oder nicht relevanten Meldungen generiert wird, insbesondere längere Haltestopps vor Lichtsignalanlagen, Schranken etc. im innerstädtischen Bereich sowie Abbremsvorgänge vor Ortsdurchfahrten werden als Verkehrsstörungen erkannt und an den Kunden weitergegeben.The disadvantage of the previously known methods lies in the fact that a large number is generated by incorrect and / or non-relevant messages, in particular longer stops before traffic lights, barriers, etc. in the inner city area as well as braking operations before passing through towns are recognized as traffic disruptions and passed on to the customer.
Die Aufgabe der Erfindung besteht darin, die Ermittlung von Verkehrslageinformationen so durchzuführen, dass die Anzahl der falschen und/oder nicht relevanten Verkehrslageinformationen weiter reduziert wird und ein genaues Bild der Verkehrslage erhalten wird.The object of the invention is the determination of traffic situation information perform so that the number of wrong and / or irrelevant Traffic situation information is further reduced and an accurate picture of the traffic situation is obtained.
Die Aufgabe der Erfindung wird durch die Merkmale des Patentanspruchs 1 gelöst. Vorteilhafte Aus- und Weiterbildungen sind in den Unteransprüchen dargestellt.The object of the invention is achieved by the features of patent claim 1 solved. Advantageous embodiments and further developments are in the dependent claims shown.
Es ist vorgesehen, zur Verkehrslagebeurteilung mit Hilfe von mobilen Detektoren zumindest die Standardabweichung, d.h. die durchschnittliche Abweichung der vom mobilen Detektor gefahrenen Geschwindigkeit von der mittleren Geschwindigkeit des mobilen Detektors auf einem Streckenabschnitt und/oder die Süllstandszeiten auf dem befahrenen Streckenabschnitt zu verwenden.It is intended to traffic situation assessment with the help of mobile Detectors at least the standard deviation, i. the average deviation the speed traveled by the mobile detector from the middle one Speed of the mobile detector on a section of track and / or the To use idle times on the traveled section.
Die verarbeitbaren Daten der Streckenabschnitte bzw. das Strassennetz, welche zur Verkehrslagebeurteilung herangezogen werden, werden dabei beispielsweise nach einem Verfahren, wie es in der DE 100 52 109 beschrieben wird, erzeugt.The processable data of the sections or the road network, which for Traffic situation are used, for example, after a method as described in DE 100 52 109 generated.
Nach einer vorteilhaften Ausführung der Erfindung werden dabei folgende Schritte durchgeführt. In einem vorzugsweise ersten Verfahrensschritt wird die mittlere Geschwindigkeit eines mobilen Detektors auf mindestens einem von ihm befahrenen Streckenabschnitt ermittelt. Zusätzlich erfolgt die Ermittlung der Standardabweichung der vom Detektor gefahrenen Geschwindigkeit von der mittleren Geschwindigkeit bzw. der Durchschnittsgeschwindigkeit auf dem befahrenen Streckenabschnitt und/oder der Summe der Stillstandszeiten des mobilen Detektors in Bezug zu der Reisezeit des mobilen Detektors auf dem Streckenabschnitt, dabei wird die Summe der Reisezeiten vorzugsweise im Verhältnis zur Reisezeit angegeben.According to an advantageous embodiment of the invention, the following steps carried out. In a preferably first process step, the middle Speed of a mobile detector on at least one of his vehicles Track section determined. In addition, the determination of the standard deviation of the from the detector driven speed of the medium speed or the Average speed on the traveled section and / or the Sum of the downtime of the mobile detector with respect to the travel time of the mobile detector mobile detector on the route section, this is the sum of the travel times preferably given in relation to the travel time.
Die ermittelte Standardabweichung des befahrenen Streckenabschnittes wird als Funktion der mittleren Geschwindigkeit auf dem befahrenen Streckenabschnitt mit mindestens einem Grenzverlauf, der in Abhängigkeit von der Standardabweichung und der mittleren Geschwindigkeit festgelegt wird, verglichen. Mit anderen Worten wird aus der Standardabweichung und der mittleren Geschwindigkeit ein Punkt in einem aus Standardabweichung und mittlerer Geschwindigkeit gebildeten Koordinatensystem festgelegt, der beispielsweise in einem Bereich neben oder auf dem mindestens einen Grenzverlauf liegt.The determined standard deviation of the traveled section is called Function of medium speed on the traveled section with at least one borderline, depending on the standard deviation and the average speed is set. In other words, will from the standard deviation and the mean speed a point in one out Standard deviation and mean velocity formed coordinate system set, for example, in an area next to or on the at least one Borderline lies.
Zusätzlich oder alleinig kann ein Vergleich der Summe der Stillstandszeiten im Verhältnis zur Reisezeit auf dem befahrenen Streckenabschnitt als Funktion der mittleren Geschwindigkeit auf dem Streckenabschnitt mit mindestens einem Grenzverlauf, der in Bezug auf die Summe der Stillstandszeiten auf dem befahrenen Streckenabschnitt und der mittleren Geschwindigkeit festgelegt wird, durchgeführt werden. Mit anderen Worten wird ebenfalls ein Koordinatensystem aus dem Verhältnis der Summe der Stillstandszeiten zu der Reisezeit auf dem vordefinierten Streckenabschnitt und der mittleren Geschwindigkeit auf dem Streckenabschnitt gebildet. In diesem Koordinatensystem wird mindestens ein Grenzverlauf zur Definition von Verkehrszuständen bestimmt und der Koordinatenpunkt, der aus der Summe der Stillstandszeiten zur Reisezeit und der mittleren Geschwindigkeit gebildet wird, im Koordinatensystem beschrieben. In einem weiteren Verfahrensschritt erfolgt die Ermittlung der Verkehrslage auf dem Streckenabschnitt in Abhängigkeit des Vergleiches der Standardabweichung als Funktion der mittleren Geschwindigkeit und/oder in Abhängigkeit des Vergleiches der Summe der Stillstandszeiten im Verhältnis zur Reisezeit als Funktion der mittleren Geschwindigkeit mit dem jeweiligen Grenzverlauf. Dabei definiert jeder der Grenzverläufe vorzugsweise die Grenze zwischen zwei Verkehrszuständen.In addition or alone, a comparison of the sum of downtime in proportion Travel time on the traveled section as a function of the middle Speed on the section of track with at least one boundary running in Reference to the sum of downtimes on the traveled section and the medium speed is set to be performed. In other words is also a coordinate system from the ratio of the sum of Downtimes to the travel time on the predefined section and the medium speed formed on the stretch of track. In this Coordinate system will have at least one boundary to the definition of Traffic conditions and determines the coordinate point, the sum of the Downtime at travel time and medium speed is formed in the Coordinate system described. In a further method step, the Determination of the traffic situation on the route section as a function of the comparison the standard deviation as a function of the mean velocity and / or in Dependence of the comparison of the sum of the idle times in relation to Travel time as a function of the average speed with the respective borderline. Each of the boundary curves preferably defines the boundary between two Traffic conditions.
Nach einer bevorzugten Weiterbildung können sowohl für die Standardabweichung als Funktion der mittleren Geschwindigkeit als auch für die Summe der Stillstandszeiten als Funktion der mittleren Geschwindigkeit mehrere Grenzverläufe vorgesehen sein, die unterschiedliche Verkehrszustände, wie "Stau", "Dicht", "Zäh fliessender Verkehr" oder "Frei", definieren.According to a preferred development, both for the standard deviation as Function of the average speed as well as for the sum of the downtimes as Function of the medium speed can be provided several borderlines, the different traffic conditions, such as "traffic jam", "dense", "slow-moving traffic" or "Free", define.
Um sogenannte Pendelvorgänge um einen Grenzverlauf zu vermeiden, können die Grenzverläufe eine sogenannte Hysterese aufweisen, das heisst, abhängig davon, von welchem Verkehrszustand eine Änderung am Grenzverlauf ausgeht, ist ein anderer Wert bzw. Werteverlauf des Grenzverlaufes zu verwenden.To avoid so-called pendulum operations around a border, the Boundaries have a so-called hysteresis, that is, depending on, from Whichever traffic condition a change in the border starts from is another value or to use the value curve of the limit curve.
Eine Ausbildung der Erfindung sieht weiterhin vor, dass die Grenzverläufe zur Definition der Verkehrszustände in Abhängigkeit des Strassentyps (Autobahn, Landstrasse usw.) festgelegt werden. Es besteht jedoch auch die Möglichkeit, die Grenzverläufe streckenabhängig festzulegen. Hier können solche Parameter wie Kurvenradien, Steigungen usw. eine Rolle spielen.An embodiment of the invention further provides that the boundary curves for the definition the traffic conditions depending on the road type (motorway, country road etc.) be determined. However, there is also the possibility of the borderlines route-dependent. Here, such parameters as curve radii, Gradients, etc. play a role.
Die Erfindung sieht weiterhin in einer Ausbildung der Erfindung vor, dass die Grenzverläufe in Abhängigkeit der Infrastruktur (Kreuzungen, Ampeln, Ein- und Ausfahrten sowie der Art der Bebauung am Streckenabschnitt usw.) definiert werden. Auch eine zeitabhängige Festlegung der Grenzverläufe ist möglich, so können zum Beispiel im Berufsverkehr andere Grenzen vorgesehen sein als am Wochenende. The invention further provides in an embodiment of the invention that the Limits depending on the infrastructure (intersections, traffic lights, inputs and Exits and the type of development on the route section, etc.). Also, a time-dependent definition of the boundaries is possible, so can Example in the traffic other limits than the weekend.
Eine Weiterbildung sieht dabei vor, dass die Grenzverläufe nicht statisch, sondern dynamisch festgelegt werden, ändert sich eine Situation auf einem Streckenabschnitt, werden die Grenzverläufe der jeweiligen Situation angepasst.A further development provides that the boundary processes are not static but be set dynamically, a situation changes on a stretch of road, the boundary processes are adapted to the respective situation.
Gemäss einer Ausbildung der Erfindung kann vorgesehen sein, dass zumindest in Abhängigkeit der zulässigen Höchstgeschwindigkeit auf einem Streckenabschnitt eine Verkehrslagebestimmung in Abhängigkeit der Standardabweichung als Funktion der mittleren Geschwindigkeit und/oder in Abhängigkeit der Summe der Stillstandszeiten als Funktion der mittleren Geschwindigkeit erfolgt. So erfolgt vorzugsweise auf Autobahnen und Highways eine Verkehrslageermittlung in Abhängigkeit der Standardabweichung und auf Stadtstrassen eine Verkehrslageermittlung in Abhängigkeit der Stillstandszeiten auf den Streckenabschnitten. Es sind jedoch auch Verkehrslageermittlungen in Abhängigkeit der Standardabweichung und der Stillstandszeiten denkbar.According to one embodiment of the invention, it can be provided that at least in Dependence of the maximum permissible speed on a section of road Traffic position determination as a function of the standard deviation as a function of mean speed and / or depending on the sum of downtime as Function of medium speed is done. This is preferably done on highways and highways a traffic situation determination depending on the standard deviation and On urban roads, a traffic situation determination depending on the downtime on the track sections. However, it is also traffic situation investigations in dependence the standard deviation and downtimes conceivable.
Eine andere Ausbildung der Erfindung sieht vor, dass zumindest infrastruktur abhängig eine Verkehrslageermittlung in Abhängigkeit der Standardabweichung als Funktion der mittleren Geschwindigkeit und/oder in Abhängigkeit der Summe der Stillstandszeiten als Funktion der mittleren Geschwindigkeit erfolgt.Another embodiment of the invention provides that at least infrastructure dependent a traffic situation determination as a function of the standard deviation as a function of mean speed and / or depending on the sum of downtime as Function of medium speed is done.
Ausserdem kann vorgesehen sein, dass zur Verkehrslageermittlung zusätzlich das Beschleunigungsverhalten des mobilen Detektors herangezogen wird. Dies hat den Vorteil, dass eine genauere Unterscheidung zwischen Ampelphasen und einem Stau auf einem Streckenabschnitt unterschieden werden kann..In addition, it can be provided that the traffic situation determination additionally the Acceleration behavior of the mobile detector is used. This has the Advantage that a more accurate distinction between traffic signal phases and a traffic jam A section of the route can be distinguished.
Die Verkehrslageermittlung kann sowohl in einer Zentrale als auch im mobilen Detektor durchgeführt werden. Erfolgt die Ermittlung in der Zentrale, sendet der jeweilige mobile Detektor zumindest seine zeitlichen Positionsdaten an die Zentrale, die daraus Geschwindigkeiten ermitteln kann. Es kann jedoch auch vorgesehen sein, dass der jeweilige mobile Detektor zusätzlich seine Geschwindigkeitsdaten sendet. Wird die Verkehrslage direkt vom mobilen Detektor ermittelt, sieht eine Ausführung vor, dass der mobile Detektor Daten einer erwarteten oder derzeitigen Verkehrslage erhält, und nur bei Änderung der Verkehrslage Daten der Verkehrslage an die Zentrale sendet. Dabei besteht auch die Möglichkeit, dass der mobile Detektor seine Daten nicht während der Fahrt an die Zentrale übermittelt, sondern die Daten nach Beendigung der Fahrt übergeben werden. Ein solches Verfahren kann beispielsweise bei der Verkehrswegeplanung eingesetzt werden.The traffic situation determination can be both in a central office as also be performed in the mobile detector. If the investigation takes place at the headquarters, sends the respective mobile detector at least its temporal position data to the Central, which can determine speeds from it. However, it can also be provided be that the respective mobile detector additionally sends its speed data. If the traffic situation is determined directly by the mobile detector, an embodiment provides that the mobile detector receives data of an expected or current traffic situation, and sends traffic situation data to the control center only when the traffic situation changes. There is also the possibility that the mobile detector does not keep its data during the drive to the central office, but the data after the end of the journey be handed over. Such a method can, for example, in the Traffic infrastructure planning are used.
Die Zentrale zur Ermittlung von Verkehrslageinformationen ist derart ausgebildet, dass sie das erfindungsgemässe Verfahren durchführen kann und/oder durchführt. Sie weist eine Datenkommunikationsverbindung zu den mobilen Detektoren auf, über welche sie Positionsdaten und eventuell Fahrzustandsdaten des mobilen Detektors erhält.The center for the determination of traffic situation information is designed such that it can carry out the method according to the invention and / or performs. It has a data communication connection to the mobile Detectors on which they position data and possibly driving condition data of the receives mobile detector.
Ausserdem ist ein Endgerät in einem mobilen Detektor vorgesehen, das zumindest eine Positionsbestimmungseinrichtung beinhaltet oder mit dieser verbunden ist, und eine Datenverarbeitungseinrichtung und eine Einrichtung zum Datenaustausch mit einer Zentrale umfasst, wobei das Endgerät zur Durchführung des erfindungsgemässen Verfahrens ausgebildet ist.In addition, a terminal is provided in a mobile detector, at least a position-determining device is included or connected to it, and a Data processing device and a device for data exchange with a Central, wherein the terminal for performing the inventive Method is formed.
Eine Ausbildung des Endgerätes sieht vor, dass das Endgerät seine Geschwindigkeit aus seinen zeitlichen Positionsdaten ermittelt. Es kann jedoch die Geschwindigkeit des mobilen Detektors von einem Fahrgeschwindigkeitssensor erhalten oder aus Fahrzustandsdaten ermitteln.An embodiment of the terminal provides that the terminal its speed determined from his temporal position data. However, it can reduce the speed of the mobile detector from a vehicle speed sensor or off Determine driving status data.
Des weiteren ist ein Softwareprogrammprodukt vorgesehen, das direkt in einen
internen Speicher der Zentrale und/oder des Endgerätes eines mobilen Detektors ladbar
ist und Programmschritte umfasst, mit denen die Verfahrensschritte gemäss dem
erfindungsgemässen Verfahren durchgeführt werden und/oder ausführbar sind, wenn
das Programmprodukt in der Zentrale und/oder im Endgerät läuft.
Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels näher beschrieben.
Die zugehörigen Zeichnungen zeigen:
- Fig. 1:
- ein Blockschaltbild eines Systems zur Ermittlung der Verkehrslage
- Fig. 2:
- ein Beispiel der Ermittlung der Verkehrslage mit Hilfe der Standardabweichung und
- Fig. 3:
- ein Beispiel der Ermittlung der Verkehrslage über die Summe der Stillstandszeiten.
The invention will be described in more detail with reference to an embodiment. The accompanying drawings show:
- Fig. 1:
- a block diagram of a system for determining the traffic situation
- Fig. 2:
- an example of the determination of the traffic situation with the help of the standard deviation and
- 3:
- an example of determining the traffic situation over the sum of downtimes.
In Fig. 1 ist ein System zur Erfassung von Verkehrslageinformationen auf einer von
mindestens einem mobilen Detektor 1, insbesondere einem Fahrzeug einer
Stichprobenflotte, befahrenen Route dargestellt. Das Endgerät 1a eines mobilen
Detektors 1, weist eine Positionsbestimmungseinrichtung zur Ermittlung der
geographischen Koordinaten seines momentanen Standortes, vorzugsweise eine
Satelliten gestützte Erfassungseinrichtung 2, eine Datenverarbeitungseinrichtung 6 und
eine Einrichtung 4 zur bidirektionalen Datenkommunikation mit einer entsprechenden
Kommunikationseinrichtung einer Zentrale 3 auf. Über diese
Datenkommunikationsstrecke kommuniziert das Endgerät 1a über ein Point-to-Point-Verfahren
mit der Zentrale 3 und sendet im einfachsten Fall seine zeitlich erfassten
geographischen Koordinaten an die Zentrale 3, die aus der zeitlichen Änderung der
geographischen Koordinaten des mobilen Detektors 1 mit Hilfe des erfindungsgemässen
Verfahrens die Verkehrslage auf einem Streckenabschnitt und/oder die Reisezeiten auf
dem Streckenabschnitt ermittelt. Eine andere Möglichkeit besteht darin, dass das
Endgerät 1a in der Datenverarbeitungseinrichtung 6 selbst aus den Positionsdaten die
Geschwindigkeit des mobilen Detektors ermittelt oder von einer Erfassungseinrichtung
erhält und mit Hilfe des erfindungsgemässen Verfahrens die Verkehrslage ermittelt und
in Abhängigkeit vordefinierter Kriterien, beispielsweise in Abhängigkeit des Vergleiches
mit momentanen und/oder Erwartungswerten mit Daten des betreffenden
Streckenabschnittes, wie sie beispielsweise nach einem Verfahren, wie es in der
DE 100 52 109 dargestellt ist, erzeugt werden, an die Zentrale 3 sendet. Die Daten der
Streckenabschnitte bzw. eines Ermittlungsnetzes für die Verkehrslage sind entweder in
der Datenverarbeitungseinrichtung 6 abgelegt oder werden den mobilen Detektoren 1
über ein Kommunikationsverfahren, beispielsweise in Abhängigkeit ihrer Position von
der Zentrale 3 übertragen.In Fig. 1 is a system for detecting traffic situation information on one of
at least one mobile detector 1, in particular a vehicle of a
Sample fleet, traveled route shown. The terminal 1a of a mobile
Detector 1, has a position determination device for determining the
geographical coordinates of its current location, preferably one
Satellite based detection device 2, a
Nachfolgend wird anhand der Fig. 2 bis 3 das erfindungsgemässe Verfahren anhand eines konkreten Beispiels näher erläutert. Bei diesem Beispiel wird das zu beurteilende Verkehrswegenetz, das nur die Streckenabschnitte des tatsächlichen Strassennetzes beinhaltet, die für eine Verkehrslagebeurteilung relevant erscheinen, in drei Strassentypen unterteilt. Dies sind einmal die Autobahnen und Highways mit einer sehr hohen zulässigen Höchstgeschwindigkeit, die Landstrassen und die Stadtstrassen mit Lichtsignalanlagen und Kreuzungen.Subsequently, with reference to FIGS. 2 to 3, the inventive method using a concrete example explained in more detail. In this example, the to be judged Traffic route network, which only covers the sections of the actual road network includes, which seem relevant for a traffic situation assessment, in three Divided road types. These are once the highways and highways with a lot high permissible maximum speed, the country roads and the city streets with Traffic lights and intersections.
Zur Verkehrslagebeurteilung auf den Autobahnen und Highways wird im
Ausfahrungsbeispiel die Standardabweichung σ als Funktion der mittleren
Geschwindigkeit vm des mobilen Detektors 1 auf dem Streckenabschnitt A-B
herangezogen. Dazu wird die momentane Geschwindigkeit vi des mobilen Detektors 1
kontinuierlich oder in definierten Zeitabständen erfasst oder aus dem zeitlichen Verlauf
der Positionsdaten auf dem Streckenabschnitt A-B errechnet, daraus die mittlere
Geschwindigkeit vm des mobilen Detektors 1 auf dem Streckenabschnitt ermittelt und
daraus die Standardabweichung σ der vom mobilen Detektor 1 gefahrenen
Geschwindigkeit vi von der mittleren Geschwindigkeit v m ermittelt.
Die Standardabweichung σ berechnet sich dabei gemäss folgender Formel:
The standard deviation σ is calculated according to the following formula:
Fig. 2a zeigt mehrere Verläufe der Geschwindigkeit vi und der mittleren Geschwindigkeit vm auf dem Streckenabschnitt A-B für unterschiedliche Verkehrszustände. Errechnet man nun für jeden der Geschwindigkeitsverläufe v1, v2, v3 die Standardabweichung σ als Funktion der mittleren Geschwindigkeit vm und vergleicht sie mit verschiedenen Grenzverläufen G1, G2, G3, die unterschiedliche Verkehrszustände auf dem Streckenabschnitt A-B definieren, erhält man die Verkehrslage während der Fahrt des mobilen Detektors 1 auf dem Streckenabschnitt. Während der Fahrt auf dem Streckenabschnitt mit der Geschwindigkeit v1 war die mittlere Geschwindigkeit vm1 relativ gering, die Standardabweichung σ jedoch aufgrund eines Stop-and-go-Verhaltens des mobilen Detektors 1 jedoch sehr gross, es wird ein "Stau" erkannt. Die Fahrt mit der Geschwindigkeit v2 zeigt eine mittlere Geschwindigkeit vm von ca.80 km/h mit einer geringeren Standardabweichung σ. Die Fahrt mit der Geschwindigkeit v3 zeigt eine hohe mittlere Geschwindigkeit vm mit einer geringen Standardabweichung σ. Der Streckenabschnitt A-B ist frei. Zur Vermeidung von Pendelvorgängen bei der Erkennung der Verkehrslage zwischen zwei Verkehrszuständen wurde hier zusätzlich für jeden Grenzverlauf eine Hysterese H eingeführt.FIG. 2 a shows a plurality of courses of the speed v i and the average speed v m on the route section AB for different traffic conditions. If the standard deviation σ is calculated as a function of the mean velocity v m for each of the velocity profiles v 1, v 2 , v 3 and compared with different boundary gradients G1, G2, G3, which define different traffic conditions on the segment AB, the traffic situation is obtained during the travel of the mobile detector 1 on the route section. While traveling on the section at the speed v 1 , the mean velocity v m1 was relatively low, but the standard deviation σ due to a stop-and-go behavior of the mobile detector 1 but very large, it is a "jam" recognized. The speed v 2 speed shows a mean speed v m of about 80 km / h with a lower standard deviation σ. The drive at the speed v 3 shows a high average speed v m with a small standard deviation σ. The section AB is free. In order to avoid pendulum processes in the detection of the traffic situation between two traffic conditions, a hysteresis H was additionally introduced here for each boundary course.
Bei der Verkehrslageermittlung auf Stadtstrassen besteht das Problem, dass die Lichtsignalanlagen ein starkes Stop-and-go-Verhalten bedingen, dass von tatsächlichen Staus unterschieden werden muss. Aus diesem Grund ist es auf Stadtstrassen sinnvoll, eine Verkehrslageerfassung mit Hilfe der Summe der Stillstandszeiten auf einem Streckenabschnitt durchzuführen. Fig. 3a zeigt die Geschwindigkeitsverläufe v4, v6 für zwei Fahrten von mobilen Detektoren 1 auf einem Streckenabschnitt A-B einer Stadtstrasse. Wie zu erkennen ist, ist der Stillstandsanteil S zur Fahrzeit t auf dem Streckenabschnitt A-B während der Fahrt mit der Geschwindigkeit v5 relativ gross und die mittlere Geschwindigkeit vm gering. Wird nun der prozentuale Stillstandsanteil S als Funktion der mittleren Geschwindigkeit vm mit den Grenzverläufen G1 und G2 (Fig.3b) verglichen, ist festzustellen, dass der Streckenabschnitt gestaut war. Dagegen war während der Fahrt mit der Geschwindigkeit v4 der Streckenabschnitt frei. Gegebenenfalls kann bei der Verkehrslageermittlung auf Stadtstrassen die Standardabweichung als zusätzliches Kriterium betrachtet werden.When determining the traffic situation on city streets, there is the problem that the traffic light systems require a strong stop-and-go behavior that must be distinguished from actual traffic jams. For this reason, it is useful on city streets to carry out a traffic situation survey using the sum of downtime on a section of the route. 3a shows the speed profiles v 4, v 6 for two journeys of mobile detectors 1 on a section AB of a city street. As can be seen, the stationary component S is the travel time t over the section AB during the drive at the speed v 5 relatively large and the average velocity v m low. If the percentage standstill component S as a function of the mean velocity v m is compared with the boundary profiles G1 and G2 (FIG. 3b), it can be stated that the route segment was jammed. However, was v while driving at the speed of the link 4 free. If necessary, the standard deviation can be considered as an additional criterion when determining the traffic situation on city streets.
Auf Landstrassen mit einer zulässigen Höchstgeschwindigkeit bis 100km/h sollte vorzugsweise eine Verkehrslageermittlung über die Standardabweichung der vom mobilen Detektor gefahrenen Geschwindigkeit vi von der mittleren Geschwindigkeit vm durchgeführt werden, wobei sowohl die Anzahl der Grenzverläufe G als auch ihr Verlauf gegenüber einer Verkehrslageermittlung auf Autobahnen und Highways unterschiedlich sein kann. Des weiteren kann vorgesehen sein, dass der Verkehr in entgegengesetzter Fahrtrichtung, dass heisst die Verkehrslage auf der Gegenspur und/oder die Beschleunigung des mobilen Detektors 1 berücksichtigt wird. Ausserdem ist möglich, den Stillstandsanteil, insbesondere in Grenzbereichen zweier Verkehrszustände zu berücksichtigen.On country roads with a maximum speed of 100 km / h, it is preferable to perform a traffic situation determination using the standard deviation of the speed traveled by the mobile detector v i from the mean speed v m , both the number of the boundary G and their course compared to a traffic situation on highways and highways may be different. Furthermore, it can be provided that the traffic in the opposite direction of travel, ie the traffic situation on the counter lane and / or the acceleration of the mobile detector 1, is taken into account. In addition, it is possible to take into account the standstill component, in particular in the boundary regions of two traffic conditions.
Claims (22)
- Method for determining traffic situation information within a traffic network with the aid of mobile detectors (1), in particular vehicles of a fleet of random samples, which have a terminal (1a), the following steps being carried out in the method:determination of the average speed (vm) of at least one mobile detector (1) on at least one route section (A-B) covered by it,determination of the standard deviation (σ) of the speed (vi) travelled by the mobile detector (1) from the average speed (vm) on the route section (A-B) covered and/or of the sum (S) of the stoppage times of the mobile detector (1) on the route section (A-B) covered,comparison of the standard deviation (σ) as a function of the average speed (vm) on the route section (A-B) covered with at least one boundary profile (G) which defines the boundary between two traffic states and which is defined as a function of the standard deviation (σ) and average speed (Vm), and/orcomparison of the sum (S) of the stoppage times on the route section (A-B) covered as a function of the average speed (vm) on the route section (A-B) covered with the at least one boundary profile (G) which defines the boundary between two traffic states and which is defined as a function of the sum (S) of the stoppage times on the route section (A-B) covered and the average speed (vm) on the route section (A-B) covered,determination of a traffic situation state as a function of the comparison of the standard deviation (σ), as a function of the average speed (vm), with at least one boundary profile (G) which is defined as a function of the standard deviation (σ) and average speed (vm), and/ordetermination of a traffic situation state as a function of the comparison of the sum (S) of the stoppage times, as a function of the average speed (vm), with the at least one boundary profile (G) which is defined as a function of the sum (S) of the stoppage times and the average speed (vm) on the route section (A-B).
- Method according to Claim 1, characterized in that a plurality of boundary profiles (G) are provided which are defined as a function of the standard deviation (σ) and average speed (vm) on a route section (A-B).
- Method according to either of Claims 1 and 2, characterized in that a plurality of boundary profiles (G) are provided which are defined as a function of the sum (S) of the stoppage times on the route section (A-B) covered and the average speed (vm) on the route section (A-B).
- Method according to one of Claims 1 to 3, characterized in that at least one of the boundary profiles (G) has a hysteresis (H).
- Method according to one of Claims 1 to 4, characterized in that, for definition of the traffic states, the boundary profiles (G) are defined as a function of the type of road.
- Method according to one of Claims 1 to 5, characterized in that the boundary profiles (G) are defined as a function of the route.
- Method according to one of Claims 1 to 6, characterized in that the boundary profiles (G) are defined as a function of the infrastructure.
- Method according to one of Claims 1 to 7, characterized in that the boundary profiles (G) are defined as a function of the time.
- Method according to one of Claims 1 to 8, characterized in that the boundary profiles (G) can be changed.
- Method according to one of Claims 1 to 9, characterized in that a determination of a traffic situation takes place as a function of the standard deviation (σ), as a function of the average speed (vm) and/or as a function of the sum (S) of the stoppage times, as a function of the average speed (vm), at least as a function of the permissible maximum speed on a route section (A-B).
- Method according to one of Claims 1 to 10, characterized in that a determination of the traffic situation as a function of the standard deviation (σ), as a function of the average speed (vm), and/or as a function of the sum (S) of the stoppage times, as a function of the average speed (vm), takes place on a route section (A-B) at least as a function of the infrastructure.
- Method according to one of Claims 1 to 11, characterized in that, in order to determine the traffic situation, the acceleration behaviour of the mobile detector (1) is additionally used.
- Method according to one of Claims 1 to 12, characterized in that the determination of the traffic situation is carried out in a central unit (3) which obtains at least time-related data concerning the position of the at least one mobile detector (1).
- Method according to one of Claims 1 to 12, characterized in that a determination of the traffic situation is carried out in the terminal (1a) of the mobile detector (1) and data concerning the traffic situation are sent to a central unit (3) and/or are passed on to it.
- Method according to Claim 14, characterized in that the central unit (3) sends the mobile detector (1) data concerning an anticipated traffic situation, and the mobile detector (1) conveys data concerning the traffic situation which has been determined to the central unit (3) essentially only if there is a change in the anticipated traffic situation.
- Central unit for determining traffic situation information within a traffic network, the unit obtaining at least from one mobile detector (1) data concerning its geographical position, characterized in that the central unit (3) is designed for carrying out a method according to one of Claims 1 to 15.
- Central unit according to Claim 16, characterized in that the central unit (3) obtains from the mobile detector (1) time-related data concerning its geographical position.
- Central unit according to Claim 16 or 17, characterized in that the central unit (3) obtains driving state data, at least the speed (vi) at a particular instance, from the mobile detector (1).
- Terminal in a mobile detector, which contains at least one position-defining device (2) or is connected thereto, and comprises a data processing device (6) and a device (4) for data exchange with a central unit (3), characterized in that the terminal (1a) is designed for carrying out a method according to one of Claims 1 to 15.
- Terminal according to Claim 19, characterized in that the terminal (1a) determines the speed (vi) of the mobile detector (1) from its time-related positional data.
- Terminal according to Claim 19, characterized in that the terminal (1a) obtains the speed (vi) of the mobile detector (1) from a driving speed sensor or determines it from driving state data.
- Software program product which can be loaded directly into an internal memory of a central unit (3) and/or of a terminal (1a) of a mobile detector (1) and comprises program sections with which the method steps according to one of Claims 1 to 15 are executed and/or can be executed when the program product is running in the central unit (3) and/or in the terminal (1).
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| PCT/EP2001/008237 WO2002007125A1 (en) | 2000-07-19 | 2001-07-17 | Method for determining traffic related information |
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Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7433889B1 (en) * | 2002-08-07 | 2008-10-07 | Navteq North America, Llc | Method and system for obtaining traffic sign data using navigation systems |
| US6810321B1 (en) * | 2003-03-17 | 2004-10-26 | Sprint Communications Company L.P. | Vehicle traffic monitoring using cellular telephone location and velocity data |
| WO2005064564A1 (en) * | 2003-12-19 | 2005-07-14 | Bayerische Motoren Werke Aktiengesellschaft | Determination of anticipated speed |
| KR20050068938A (en) | 2003-12-30 | 2005-07-05 | 현대자동차주식회사 | Method of a traffic conditions decision |
| KR100693181B1 (en) | 2005-05-06 | 2007-03-13 | 에스케이 텔레콤주식회사 | Method and System for Correcting Speed of Vehicle in Telematics Service |
| US20070028233A1 (en) * | 2005-07-29 | 2007-02-01 | Miller David D | Traffic control software lock and method |
| US20070208493A1 (en) * | 2006-03-03 | 2007-09-06 | Inrix, Inc. | Identifying unrepresentative road traffic condition data obtained from mobile data sources |
| US7912628B2 (en) | 2006-03-03 | 2011-03-22 | Inrix, Inc. | Determining road traffic conditions using data from multiple data sources |
| US20070208501A1 (en) * | 2006-03-03 | 2007-09-06 | Inrix, Inc. | Assessing road traffic speed using data obtained from mobile data sources |
| US7912627B2 (en) * | 2006-03-03 | 2011-03-22 | Inrix, Inc. | Obtaining road traffic condition data from mobile data sources |
| US8014936B2 (en) * | 2006-03-03 | 2011-09-06 | Inrix, Inc. | Filtering road traffic condition data obtained from mobile data sources |
| US7831380B2 (en) * | 2006-03-03 | 2010-11-09 | Inrix, Inc. | Assessing road traffic flow conditions using data obtained from mobile data sources |
| JP4342535B2 (en) * | 2006-07-10 | 2009-10-14 | トヨタ自動車株式会社 | Congestion degree creation method, congestion degree creation device |
| US7617045B2 (en) * | 2006-10-12 | 2009-11-10 | Visteon Global Technologies, Inc. | Programmable route specific dynamic traffic warning system |
| AU2008204564A1 (en) * | 2007-01-10 | 2008-07-17 | Tomtom International B.V. | A navigation device and method for providing alternative network connections |
| US8718928B2 (en) * | 2008-04-23 | 2014-05-06 | Verizon Patent And Licensing Inc. | Traffic monitoring systems and methods |
| WO2009150528A2 (en) * | 2008-06-13 | 2009-12-17 | Tmt Services And Supplies (Pty) Limited | Traffic control system and method |
| US9014632B2 (en) * | 2011-04-29 | 2015-04-21 | Here Global B.V. | Obtaining vehicle traffic information using mobile bluetooth detectors |
| US9697731B2 (en) * | 2014-01-20 | 2017-07-04 | Here Global B.V. | Precision traffic indication |
| CN105737841B (en) * | 2016-03-23 | 2018-07-31 | 北京搜狗科技发展有限公司 | A kind of method and electronic equipment obtaining road clearance time |
| KR20180051273A (en) * | 2016-11-08 | 2018-05-16 | 현대자동차주식회사 | Method for controlling driving of vehicle using driving information of vehicle and vehicle using the same |
| US10661805B2 (en) * | 2016-11-22 | 2020-05-26 | Samsung Electronics Co., Ltd. | Vehicle control unit (VCU) and operating method thereof |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9203474L (en) * | 1992-11-19 | 1994-01-31 | Kjell Olsson | Ways to predict traffic parameters |
| JP3357159B2 (en) | 1993-08-10 | 2002-12-16 | 三菱自動車工業株式会社 | Vehicle driving operation state estimating method and vehicle driving characteristic control method |
| JP3079881B2 (en) * | 1993-08-10 | 2000-08-21 | 三菱自動車工業株式会社 | Road traffic condition estimation method and vehicle driving characteristic control method |
| US5539645A (en) * | 1993-11-19 | 1996-07-23 | Philips Electronics North America Corporation | Traffic monitoring system with reduced communications requirements |
| JP3413271B2 (en) * | 1994-02-23 | 2003-06-03 | 株式会社日立ユニシアオートモティブ | Traffic congestion recognition device |
| US6044197A (en) | 1994-03-14 | 2000-03-28 | Grass Valley (U.S.) Inc. | Recording of time code in a database |
| KR960003444A (en) * | 1994-06-01 | 1996-01-26 | 제임스 디. 튜턴 | Vehicle surveillance system |
| KR960001777A (en) * | 1994-06-01 | 1996-01-25 | 제임스 디. 튜턴 | Frequency Domain Processing Method of Doppler Signal for Vehicle Surveillance System |
| DE19521914C2 (en) | 1994-11-28 | 2000-05-04 | Mannesmann Ag | Method and device for obtaining information about the surroundings of a vehicle in a sample vehicle fleet |
| JPH08161685A (en) * | 1994-12-09 | 1996-06-21 | Nippon Signal Co Ltd:The | Vehicle driving state investigating and measuring device |
| DE19606258C1 (en) | 1996-02-06 | 1997-04-30 | Mannesmann Ag | Vehicle autonomous traffic jam detection method |
| DE59700886D1 (en) * | 1996-02-08 | 2000-01-27 | Mannesmann Ag | METHOD FOR DETECTING TRAFFIC POSITION DATA |
| JP2000504860A (en) * | 1996-02-08 | 2000-04-18 | マンネスマン・アクチエンゲゼルシャフト | Method and apparatus for collecting data on traffic conditions |
| EP0798684B1 (en) * | 1996-03-25 | 2001-01-10 | MANNESMANN Aktiengesellschaft | Method and system to obtain the traffic situation through fixed data-acquisition device |
| DE19638069B4 (en) * | 1996-09-18 | 2014-05-08 | T-Mobile Deutschland Gmbh | Method and device for collecting traffic data from vehicles |
| US6329932B1 (en) * | 1997-02-14 | 2001-12-11 | Mannesmann Ag | Method for determining traffic data and traffic information exchange |
| JPH1186184A (en) | 1997-09-09 | 1999-03-30 | Aqueous Res:Kk | Vehicle travel information providing device and traffic information providing station |
| DE10052109B4 (en) | 1999-11-11 | 2014-10-30 | Deutsche Telekom Ag | Method for describing and generating road networks and road network |
-
2001
- 2001-07-17 EP EP01951687A patent/EP1303845B1/en not_active Expired - Lifetime
- 2001-07-17 CN CN01813063.1A patent/CN1443347A/en active Pending
- 2001-07-17 PL PL01359285A patent/PL359285A1/en not_active Application Discontinuation
- 2001-07-17 WO PCT/EP2001/008237 patent/WO2002007125A1/en active IP Right Grant
- 2001-07-17 US US10/332,831 patent/US6865475B2/en not_active Expired - Lifetime
- 2001-07-17 CZ CZ20024257A patent/CZ301906B6/en not_active IP Right Cessation
- 2001-07-17 HU HU0301480A patent/HU228199B1/en unknown
- 2001-07-17 AT AT01951687T patent/ATE262716T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CZ20024257A3 (en) | 2003-06-18 |
| WO2002007125A1 (en) | 2002-01-24 |
| CZ301906B6 (en) | 2010-07-28 |
| CN1443347A (en) | 2003-09-17 |
| HUP0301480A2 (en) | 2003-08-28 |
| US6865475B2 (en) | 2005-03-08 |
| US20040039516A1 (en) | 2004-02-26 |
| HU228199B1 (en) | 2013-01-28 |
| EP1303845A1 (en) | 2003-04-23 |
| HUP0301480A3 (en) | 2004-08-30 |
| PL359285A1 (en) | 2004-08-23 |
| ATE262716T1 (en) | 2004-04-15 |
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