WO1998024080A1 - Verfahren zur ermittlung von fahrtroutendaten - Google Patents
Verfahren zur ermittlung von fahrtroutendatenInfo
- Publication number
- WO1998024080A1 WO1998024080A1 PCT/DE1997/002819 DE9702819W WO9824080A1 WO 1998024080 A1 WO1998024080 A1 WO 1998024080A1 DE 9702819 W DE9702819 W DE 9702819W WO 9824080 A1 WO9824080 A1 WO 9824080A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- traffic
- route
- dynamic parameters
- routes
- parameters
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096805—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route
- G08G1/096811—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route where the route is computed offboard
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096805—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route
- G08G1/096827—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route where the route is computed onboard
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096833—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route
- G08G1/096844—Systems involving transmission of navigation instructions to the vehicle where different aspects are considered when computing the route where the complete route is dynamically recomputed based on new data
Definitions
- the invention relates to a method for determining travel route data according to the preamble of patent claim 1.
- traffic routes are managed in segments in a central control center in a digital map, in particular a digital road map, each segment representing a traffic route between two nodes, which can be intersections, junctions or the like, and is described by static or dynamic parameters.
- Parameters essentially include structural features of the traffic route, such as the type of road, the condition of the road, the number of lanes, permissible speed and attributes such as winding, steep inclines or descents.
- stationary sensors such as the number of vehicles passing a segment per unit of time and their speed, are recorded.
- the dynamic parameters can be supplemented by weather information and temporary restrictions, such as construction sites.
- weather information and temporary restrictions such as construction sites.
- predictions of the upcoming traffic situation in each segment can be derived in a known manner via fundamental diagrams, which form the basis for the route guidance of vehicles.
- the prognosis obtained in this way is due to the lack that a determined travel time along a plurality of segments can be used to determine a required travel time based on the actual and forecast traffic data available in the control center, but the targeted vehicle remains at the specified route even with unforeseeable, disabling Events.
- the invention is therefore based on the object of specifying a method of the generic type which can take into account current dynamic parameters and is nevertheless controllable with simple computational means. It should not only be suitable for planning travel routes and for guiding vehicles along planned travel routes, but also for forecasting activities such as planning traffic routes or evaluating planned travel routes (determining the expected travel time).
- Section of the route currently possible or average speed preferably obtained by measurements which are recorded by means of measuring devices arranged in vehicles, the vehicles floating in traffic (floating cars).
- data from measuring devices installed on the roadside can also be used.
- this ensures that the traffic data is up to date, and the route guidance of vehicles based thereon can be adapted more quickly to the actual traffic data. This means that the response time from the occurrence of a traffic-restricting event through its detection to the distribution of route guidance information to vehicles that are moving towards the traffic restrictions is minimal.
- Realistic assessments of planned travel routes can be carried out, in particular making relatively reliable statements about the expected travel time, extrapolated data based on current traffic data and / or data taken from an experience database can be used as input data.
- the method according to the invention can be used very well in the sense of a simulation model, for example in order to create traffic forecasts for traffic route planning.
- the invention is explained in more detail below on the basis of exemplary embodiments.
- the invention is based on a digital map held in a central control center and containing static and dynamic maps for the traffic routes detected
- the static parameters include at least structural features of the individual traffic routes, such as the number of lanes, inclines / slopes and road type. It is characteristic of the invention that the route data are determined on the basis of the relevant dynamic parameters, the dynamic parameters being used only once for specifying start values are derived from the structural features and from then on are continuously adapted to the real conditions of the respective route sections of the traffic routes with reliable availability of dynamic data regardless of static parameters.
- the dynamic parameters include at least a guide value and a load function of the associated traffic route (i.e. of the specific section of road under consideration).
- the guide value represents a measure of the possible speed in the selected traffic route and is preferably formed from the average speed of the vehicles in the respective route section.
- Alternative forms of presentation such as the average time traveled, time per km or the like, are of course within the scope of the disclosure.
- the load for example the number of vehicles, on the section of a traffic route under consideration will influence the possible speed.
- the dependence of the conductance on the load is shown by a
- the load function is the essential classification feature of a traffic route, for example in the context of the route guidance of vehicles according to the invention, since it determines the characteristic value of the current load, which is relevant to the decision, for a particular traffic route.
- the load data can come from current information as well as from extrapolated or simulated data or from an experience database, so that in particular forecasts about future traffic developments are possible. Future guideline values can also be determined, e.g. To forecast travel times for a specific planned route.
- the use of a load function always provides a dynamic description of the traffic characteristics.
- the load function is appropriately described as an approximation function.
- the route sections in the digital map in a computer in the central control center assigned the parameters of the proximity function. All relevant interpolation methods such as straight line or polynomial representation, spline method and others can be used to parameterize the load function.
- the main advantage of the method according to the invention is that the load function is not due to formal structural features such.
- the load function is defined in a first approach by standard specifications, for example for highways, country roads, etc.
- the load function is individually refined dynamic parameters to the relevant conditions of the respective section of the route.In addition to other formal information such as speed limits, downhill gradients, etc., it is primarily intended to learn the actual load function, preferably by itself.After a corresponding learning phase, each traffic route therefore receives an individual load function “to the best of our experience ".
- the high benefit of the invention is the example of a three-lane
- the load function is described by a set of parameters of a relevant interpolation method. Due to the structural features (three lanes, no speed limit), a standard parameter set is specified, which can already contain a certain amount of pre-differentiation. On the basis of measurement data both on the number of vehicles and on the speed, these parameters may be fine-tuned after a sufficient static check.
- the load function allows conclusions to be drawn about the traffic situation in this section of the route using a few measurement data. If this section of the route is reduced by a construction site to a two-lane roadway with a speed limit, the measured values very quickly contradict the assumed load function. If the construction site in the central office is known, the parameters of the load function can be implemented manually. However, the permanent plausibility check with the measured values leads to
- the decision or recommendation as to which traffic routes each vehicle is to be taken to is made exclusively on the basis of the current dynamic parameters.
- the dynamic parameters in predeterminable closed geographical areas are scaled manually or automatically.
- This scaling can be used particularly advantageously in the case of prematurely known events, such as, for example, when construction sites are being built on individual traffic routes and when traffic-relevant weather changes for areas of traffic routes occur. Otherwise the scaling e.g. be differentiated according to the day of the week, time of day and weather.
- this feature of the invention can advantageously be used in traffic simulation and traffic planning.
- the effect of increasing the speed of the vehicle can advantageously be used in traffic simulation and traffic planning.
- Number of lanes for a definable traffic route can be directly simulated.
- the alternative parameter expediently comprises in the sense of a parameter list at least the number of alternative traffic routes as well as their quality and length (possibly detour length).
- Alternative necessary detour set The further the detour via an alternative route, the greater the alternative parameter. This measure can be further refined by other influencing variables, such as the number of alternative routes or the capacity of the alternative routes.
- the alternative parameter ultimately evaluates the traffic route according to whether it is worth looking for an alternative route. The higher the alternative parameter, the less it is worth looking for an alternative.
- the alternative parameter can represent an average over many possible routes. These can be generated, for example, by experience or by suitable simulations.
- the advantage of using this classification feature lies in the drastic reduction in the computational effort required to determine alternative routes.
- Another way of generating this parameter is to evaluate the topology of the underlying traffic network map. Relevant procedures are used to identify coherent, well-connected large areas. The borders of these large areas are only crossed by a few traffic connections. These access roads form the sensitive routes, which are characterized by a high alternative parameter. Examples of this are large cities, but also regional agglomerations.
- successive traffic routes of a route with a low degree of branching are combined to traffic route complexes and for route guidance as a single one Traffic route to take into account and depending on the degree of branching of the flow of traffic at nodes of successive traffic routes to assign a complexity parameter to each of the successive traffic routes.
- This classification feature can advantageously be used in particular when controlling the internal computing effort, when controlling the information collection, in particular the traffic situation recording, but also when the relevant information is displayed.
- a recommended route is determined as the route data in which from a control center, wherein the decision as to which traffic routes the vehicle is in the context of the route recommendation is performed to 'primarily or exclusively on the basis of relevant dynamic parameters is taken.
- the corresponding route guidance information can be transmitted to the vehicle, for example, using cellular mobile radio.
- the method can also be used advantageously in an onboard route guidance system in which the route planning and the output of the route guidance information are autonomous in the
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Traffic Control Systems (AREA)
- Navigation (AREA)
- Optical Communication System (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97953607A EP0941534B1 (de) | 1996-11-27 | 1997-11-26 | Verfahren zur ermittlung von fahrtroutendaten |
US09/308,857 US6216088B1 (en) | 1996-11-27 | 1997-11-26 | Method for determining itinerary data |
JP52415798A JP2001504590A (ja) | 1996-11-27 | 1997-11-26 | 走行経路データを算出するための方法 |
AT97953607T ATE203613T1 (de) | 1996-11-27 | 1997-11-26 | Verfahren zur ermittlung von fahrtroutendaten |
DE59704147T DE59704147D1 (de) | 1996-11-27 | 1997-11-26 | Verfahren zur ermittlung von fahrtroutendaten |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19650844.4 | 1996-11-27 | ||
DE19650844A DE19650844C2 (de) | 1996-11-27 | 1996-11-27 | Verfahren zur Ermittlung von Fahrtroutendaten |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998024080A1 true WO1998024080A1 (de) | 1998-06-04 |
Family
ID=7813954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/002819 WO1998024080A1 (de) | 1996-11-27 | 1997-11-26 | Verfahren zur ermittlung von fahrtroutendaten |
Country Status (7)
Country | Link |
---|---|
US (1) | US6216088B1 (de) |
EP (1) | EP0941534B1 (de) |
JP (1) | JP2001504590A (de) |
AT (1) | ATE203613T1 (de) |
DE (2) | DE19650844C2 (de) |
ES (1) | ES2158614T3 (de) |
WO (1) | WO1998024080A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7526377B2 (en) | 2003-07-17 | 2009-04-28 | Harman Becker Automotive Systems Gmbh | Route calculation around traffic obstacles using marked diversions |
Families Citing this family (27)
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US9832610B2 (en) | 1994-11-29 | 2017-11-28 | Apple Inc. | System for collecting, analyzing, and transmitting information relevant to transportation networks |
US8799461B2 (en) * | 1994-11-29 | 2014-08-05 | Apple Inc. | System for collecting, analyzing, and transmitting information relevant to transportation networks |
DE19914041A1 (de) * | 1999-03-27 | 2000-09-28 | Bosch Gmbh Robert | Verfahren zur Information von Autofahrern |
DE19916967C1 (de) * | 1999-04-15 | 2000-11-30 | Daimler Chrysler Ag | Verfahren zur Aktualisierung einer Verkehrswegenetzkarte und kartengestütztes Verfahren zur Fahrzeugführungsinformationserzeugung |
US6498986B1 (en) * | 1999-06-14 | 2002-12-24 | International Business Machines Corporation | Method and system for enabling automatic vehicle routing |
DE19933639A1 (de) * | 1999-07-17 | 2001-01-18 | Bosch Gmbh Robert | Verfahren zur Berechnung einer Route von einem Start- zu einem Zielort |
US6385539B1 (en) | 1999-08-13 | 2002-05-07 | Daimlerchrysler Ag | Method and system for autonomously developing or augmenting geographical databases by mining uncoordinated probe data |
US6353795B1 (en) * | 2000-02-01 | 2002-03-05 | Infospace, Inc. | Method and system for matching an incident to a route |
US6480783B1 (en) * | 2000-03-17 | 2002-11-12 | Makor Issues And Rights Ltd. | Real time vehicle guidance and forecasting system under traffic jam conditions |
DE10015936C2 (de) * | 2000-03-30 | 2002-06-13 | Bosch Gmbh Robert | Verfahren zur Strassenklassenbewertung in Navigationssystemen |
US6308132B1 (en) * | 2000-06-13 | 2001-10-23 | Honeywell International Inc. | Method and apparatus for displaying real time navigational information |
DE10030931C2 (de) * | 2000-06-24 | 2002-06-13 | Bosch Gmbh Robert | Verfahren zur Fahrtroutenberechnung in einem Navigationssystem |
DE10031787A1 (de) * | 2000-07-04 | 2002-01-24 | Daimler Chrysler Ag | Assistenzsystem zur Auswahl von Strecken |
US20020144143A1 (en) * | 2000-12-15 | 2002-10-03 | International Business Machines Corporation | Method and system for network management capable of restricting consumption of resources along endpoint-to-endpoint routes throughout a network |
US6662106B2 (en) * | 2001-04-13 | 2003-12-09 | Hewlett-Packard Development Company, L.P. | Navigation system that takes into account dynamic road conditions |
US6558164B2 (en) * | 2001-06-04 | 2003-05-06 | Hewlett-Packard Development Company, L.P. | Method and system for simulating travel |
DE10162335A1 (de) * | 2001-12-18 | 2003-07-10 | Zf Lemfoerder Metallwaren Ag | Verfahren und Vorrichtung zur Erzeugung und Aktualisierung einer Wege- und/oder Wegezustandskarte |
DE102004012041B4 (de) | 2004-03-10 | 2021-09-16 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Fahrzeitermittlung in einem Navigationssystem für Kraftfahrzeuge |
DE102004032499B3 (de) * | 2004-07-05 | 2005-12-08 | Siemens Ag | Verfahren und Routenplanungssystem zur Generierung und Speicherung von für eine dynamische Routenplanung benötigten Daten |
DE102005033753A1 (de) * | 2005-07-15 | 2007-01-18 | Ptv Ag | Verfahren zum Berechnen einer geeigneten Strecke und Navigationssystem |
US8290699B2 (en) * | 2007-09-28 | 2012-10-16 | Clarion Co., Ltd. | System and method for geographic interpolation of traffic data |
WO2014152554A1 (en) | 2013-03-15 | 2014-09-25 | Caliper Corporation | Lane-level vehicle navigation for vehicle routing and traffic management |
DE102013005828A1 (de) * | 2013-04-04 | 2014-10-09 | Man Truck & Bus Ag | Anordnung zur Warnung vor und/oder zur Berücksichtigung von nutzfahrzeugrelevanten Fahreinschränkungen |
DE102013017857A1 (de) | 2013-10-26 | 2014-07-03 | Daimler Ag | Verfahren zum Vorhalt von Neubaustrecken in einem Navigationssystem eines Kraftfahrzeuges und ein Kraftfahrzeug |
DE102014006551A1 (de) | 2014-05-06 | 2015-11-12 | Audi Ag | Verfahren zum Erstellen einer Schaltprognose für eine Ampel |
CN108009972B (zh) * | 2017-10-24 | 2021-09-28 | 北京交通大学 | 一种基于多源数据校核的多方式出行o-d需求估计方法 |
CN112129305B (zh) * | 2020-09-22 | 2023-11-24 | 腾讯科技(深圳)有限公司 | 车辆导航方法、***、装置和存储介质 |
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-
1996
- 1996-11-27 DE DE19650844A patent/DE19650844C2/de not_active Expired - Fee Related
-
1997
- 1997-11-26 AT AT97953607T patent/ATE203613T1/de not_active IP Right Cessation
- 1997-11-26 DE DE59704147T patent/DE59704147D1/de not_active Expired - Lifetime
- 1997-11-26 US US09/308,857 patent/US6216088B1/en not_active Expired - Lifetime
- 1997-11-26 JP JP52415798A patent/JP2001504590A/ja active Pending
- 1997-11-26 WO PCT/DE1997/002819 patent/WO1998024080A1/de active IP Right Grant
- 1997-11-26 EP EP97953607A patent/EP0941534B1/de not_active Expired - Lifetime
- 1997-11-26 ES ES97953607T patent/ES2158614T3/es not_active Expired - Lifetime
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US4390951A (en) * | 1979-09-07 | 1983-06-28 | Thomson-Csf | Apparatus for monitoring road traffic to control an associated signaling system |
EP0293724A1 (de) * | 1987-05-27 | 1988-12-07 | Siemens Aktiengesellschaft | Verfahren zur messtechnischen Erfassung der Intensität des Strassenverkehrs |
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WO1996029688A1 (de) * | 1995-03-23 | 1996-09-26 | Detemobil Deutsche Telekom Mobilnet Gmbh | Verfahren und einrichtung zur ermittlung von dynamischen verkehrsinformationen |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7526377B2 (en) | 2003-07-17 | 2009-04-28 | Harman Becker Automotive Systems Gmbh | Route calculation around traffic obstacles using marked diversions |
Also Published As
Publication number | Publication date |
---|---|
EP0941534B1 (de) | 2001-07-25 |
DE19650844C2 (de) | 2003-09-25 |
ES2158614T3 (es) | 2001-09-01 |
EP0941534A1 (de) | 1999-09-15 |
US6216088B1 (en) | 2001-04-10 |
DE59704147D1 (de) | 2001-08-30 |
JP2001504590A (ja) | 2001-04-03 |
DE19650844A1 (de) | 1998-06-04 |
ATE203613T1 (de) | 2001-08-15 |
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