WO2001001367A1 - Traffic monitoring method - Google Patents

Traffic monitoring method Download PDF

Info

Publication number
WO2001001367A1
WO2001001367A1 PCT/GB2000/002433 GB0002433W WO0101367A1 WO 2001001367 A1 WO2001001367 A1 WO 2001001367A1 GB 0002433 W GB0002433 W GB 0002433W WO 0101367 A1 WO0101367 A1 WO 0101367A1
Authority
WO
WIPO (PCT)
Prior art keywords
cells
telephone
telephones
road
monitoring
Prior art date
Application number
PCT/GB2000/002433
Other languages
French (fr)
Inventor
Michael Jeremy Kew
Original Assignee
Artery Solutions Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Artery Solutions Limited filed Critical Artery Solutions Limited
Priority to AU55515/00A priority Critical patent/AU5551500A/en
Publication of WO2001001367A1 publication Critical patent/WO2001001367A1/en

Links

Classifications

    • 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
    • G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
    • G08G1/0141—Measuring and analyzing of parameters relative to traffic conditions for specific applications for traffic information dissemination
    • 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
    • G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
    • G08G1/012—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from other sources than vehicle or roadside beacons, e.g. mobile networks
    • 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
    • G08G1/0125—Traffic data processing
    • G08G1/0133—Traffic data processing for classifying traffic situation

Definitions

  • This invention relates to the monitoring of traffic flow along highways.
  • a method of monitoring road traffic comprises monitoring the transitions of mobile telephones between cells of a cellular mobile telephone network and correlating said transitions to movement of road traffic along highways passing through said cells.
  • the method according to the invention is advantageous primarily in that it does not require the installation of dedicated hardware, either on the highways on which traffic flow is monitored or in vehicles travelling along those highways. Instead, the method takes advantage of the fact that a significant (and increasing) proportion of road users carry mobile telephones on board. These telephones are in constant dialogue with the mobile telephone network which is "aware" of the particular cell to which each individual telephone is assigned at any particular moment in time. As a vehicle in which the telephone is carried travels along a highway, the telephone is "handed off from one cell to another. The particular sequence of cells to which a telephone is assigned is characteristic of a particular highway.
  • knowledge of the sequence of cells through which a particular telephone passes, or to which the telephone is assigned gives information as to the route which that telephone is following, and the speed with which the telephone (and others following the same route) passes from one cell to another indicates the rate of traffic flow in that area.
  • apparatus for monitoring road traffic comprises means for monitoring the transitions of mobile telephones between cells of a cellular mobile telephone network and means for correlating said transitions to movement of road traffic along highways passing through said cells.
  • the network can be constantly "aware" of the particular cell to which an individual telephone is assigned at any particular time.
  • information concerning a transition of a telephone from one cell to another is inherent in the system.
  • the method and apparatus of the present invention thus utilise latent information, and the data handling technology by which such information can be processed and analysed will be readily apparent to those skilled in the art.
  • a highway eg a major road or motorway
  • a tortuous path which takes it through numerous cells (denoted AA,AB,... etc) of a mobile telephone network. Only those cells surrounding part of the highway 1 are shown, but in general cells will cover the whole length of the highway 1. The cells typically have diameters of from 1 to 7 miles or so.
  • a telephone carried in a motor vehicle travelling along the highway 1 from west to east as viewed in the drawing will be assigned initially to cell AA. However, as the vehicle travels further along the highway 1 the signal strengths vary and the telephone is handed on from cell to cell. In the case illustrated, the telephone is assigned to the sequence of cells shown at the right hand side of the drawing. This sequence is characteristic of traffic travelling west to east on the highway 1. Vehicles travelling in the opposite direction on the same highway would have the opposite sequence of cells.
  • knowledge of the particular cell to which a telephone is assigned gives an indication of the geographical location of that telephone.
  • Knowledge of the sequence of cells to which that telephone has been assigned indicates the route which on which that telephone is travelling. For instance, a telephone which is assigned to cell AE is located within that cell. If the telephone has a "history" of cells AA-BC-AC-AF-BB-AE then it is travelling west to east on highway 1. If the history is AB-CD-CA-CC-AB then the telephone is travelling east to west on highway 1. If the cell AE is preceded by CB then the telephone is not travelling on highway 1 at all, but on some other highway which can be identified by its own characteristic sequence of cells.
  • each telephone travelling along a particular highway may not be handed off through all of the possible characteristic cells for that highway. For instance, a telephone travelling west to east on highway 1 may be handed off from AA directly to AC and not BC. Assignment of a telephone to a particular route may therefore depend on assessment of probability, based on the number of "signature" cells through which the telephone passes.
  • the time taken for a particular telephone to pass through a cell gives an indication of the speed of traffic flow on the part of the highway which passes through that cell.
  • Telephones on a particular highway entering a cell at a greater rate than they leave the cell is an indication of congestion on that route, within the cell.
  • telephones entering a cell and not leaving it is an indication of stationary traffic. This may be due to a traffic jam or to traffic congregating and stopping at, for instance, a sporting venue. However, the latter case can be distinguished in that some traffic (that not attending the event) would still pass through the cell.
  • Allowance may also need to be made for telephones travelling by means other than by road, eg by train. Such circumstances may be recognised by relatively large numbers of telephones exhibiting simultaneous behaviour.
  • the information gathered by the method of the invention may be disseminated to road users in various ways.
  • users of the telephone system may place a call to either an automated information service or to an operator who will then be able to provide information as to the instantaneous whereabouts of the caller and the traffic conditions on the caller's route.
  • information may be disseminated continuously, at regular intervals, or in the event of a traffic jam being detected, for instance to other telephones approaching that jam.
  • the information may also be relayed to, for example, radio stations for dissemination through broadcast traffic reports.
  • one or more standard routes ie routes along which a particular road user travels on regular or frequent occasions. This may be achieved by informing the system when that route is to be followed so that the route is stored for future reference. When the route is next to be travelled the user can then request from the system (eg by telephone or through a computer) a forecast of traffic conditions along that standard route.

Abstract

A method of monitoring road traffic comprises monitoring transitions of mobile telephones between cells (AA, BC, AC, AF,...) of a mobile telephone network. The transitions are correlated to movement of road traffic along highways (1) passing through the cells (AA, BC, AC, AF,...).

Description

Title: TRAFFIC MONITORING METHOD
This invention relates to the monitoring of traffic flow along highways.
As congestion on roads, due to ever-increasing volumes of traffic, becomes increasingly prevalent the use of systems for the monitoring of traffic flow, and the dissemination of such information to road users, becomes more and more desirable. Known systems for such purposes comprise cameras or other sensors installed on road bridges and the like which actually measure the number of traffic movements beneath and/or the average traffic speed. This information is recorded centrally and transmitted to road users equipped with dedicated receiving equipment.
Systems of the type just described suffer from the disadvantage that they are dependent on the installation and maintenance of a huge quantity of hardware, since the system can only operate on roads on which the necessary hardware has been installed. Also, the system can only be used by drivers whose vehicles are fitted with the necessary receiving equipment.
There has now been devised a method of traffic monitoring which overcomes or substantially mitigates the above-mentioned disadvantages.
According to the invention, a method of monitoring road traffic comprises monitoring the transitions of mobile telephones between cells of a cellular mobile telephone network and correlating said transitions to movement of road traffic along highways passing through said cells.
The method according to the invention is advantageous primarily in that it does not require the installation of dedicated hardware, either on the highways on which traffic flow is monitored or in vehicles travelling along those highways. Instead, the method takes advantage of the fact that a significant (and increasing) proportion of road users carry mobile telephones on board. These telephones are in constant dialogue with the mobile telephone network which is "aware" of the particular cell to which each individual telephone is assigned at any particular moment in time. As a vehicle in which the telephone is carried travels along a highway, the telephone is "handed off from one cell to another. The particular sequence of cells to which a telephone is assigned is characteristic of a particular highway. Thus, knowledge of the sequence of cells through which a particular telephone passes, or to which the telephone is assigned, gives information as to the route which that telephone is following, and the speed with which the telephone (and others following the same route) passes from one cell to another indicates the rate of traffic flow in that area.
According to another aspect of the invention, there is provided apparatus for monitoring road traffic, which apparatus comprises means for monitoring the transitions of mobile telephones between cells of a cellular mobile telephone network and means for correlating said transitions to movement of road traffic along highways passing through said cells.
As explained above, in a conventional cellular telephone system the network can be constantly "aware" of the particular cell to which an individual telephone is assigned at any particular time. Thus, information concerning a transition of a telephone from one cell to another is inherent in the system. The method and apparatus of the present invention thus utilise latent information, and the data handling technology by which such information can be processed and analysed will be readily apparent to those skilled in the art.
The invention will now be described in greater detail, by way of illustration only, with reference to the accompanying drawing which shows schematically a highway passing through a series of cells of a mobile telephone network.
Referring to the drawing, a highway (eg a major road or motorway) is designated 1 and follows a tortuous path which takes it through numerous cells (denoted AA,AB,... etc) of a mobile telephone network. Only those cells surrounding part of the highway 1 are shown, but in general cells will cover the whole length of the highway 1. The cells typically have diameters of from 1 to 7 miles or so. A telephone carried in a motor vehicle travelling along the highway 1 from west to east as viewed in the drawing will be assigned initially to cell AA. However, as the vehicle travels further along the highway 1 the signal strengths vary and the telephone is handed on from cell to cell. In the case illustrated, the telephone is assigned to the sequence of cells shown at the right hand side of the drawing. This sequence is characteristic of traffic travelling west to east on the highway 1. Vehicles travelling in the opposite direction on the same highway would have the opposite sequence of cells.
Thus, at any particular instant, knowledge of the particular cell to which a telephone is assigned gives an indication of the geographical location of that telephone. Knowledge of the sequence of cells to which that telephone has been assigned indicates the route which on which that telephone is travelling. For instance, a telephone which is assigned to cell AE is located within that cell. If the telephone has a "history" of cells AA-BC-AC-AF-BB-AE then it is travelling west to east on highway 1. If the history is AB-CD-CA-CC-AB then the telephone is travelling east to west on highway 1. If the cell AE is preceded by CB then the telephone is not travelling on highway 1 at all, but on some other highway which can be identified by its own characteristic sequence of cells.
In practice, each telephone travelling along a particular highway may not be handed off through all of the possible characteristic cells for that highway. For instance, a telephone travelling west to east on highway 1 may be handed off from AA directly to AC and not BC. Assignment of a telephone to a particular route may therefore depend on assessment of probability, based on the number of "signature" cells through which the telephone passes.
The time taken for a particular telephone to pass through a cell gives an indication of the speed of traffic flow on the part of the highway which passes through that cell. Telephones on a particular highway entering a cell at a greater rate than they leave the cell is an indication of congestion on that route, within the cell. Similarly, telephones entering a cell and not leaving it is an indication of stationary traffic. This may be due to a traffic jam or to traffic congregating and stopping at, for instance, a sporting venue. However, the latter case can be distinguished in that some traffic (that not attending the event) would still pass through the cell.
Allowance may also need to be made for telephones travelling by means other than by road, eg by train. Such circumstances may be recognised by relatively large numbers of telephones exhibiting simultaneous behaviour.
The information gathered by the method of the invention may be disseminated to road users in various ways. For example, users of the telephone system may place a call to either an automated information service or to an operator who will then be able to provide information as to the instantaneous whereabouts of the caller and the traffic conditions on the caller's route. Alternatively, such information may be disseminated continuously, at regular intervals, or in the event of a traffic jam being detected, for instance to other telephones approaching that jam. The information may also be relayed to, for example, radio stations for dissemination through broadcast traffic reports.
In a refinement of the invention, it may be possible to define one or more standard routes, ie routes along which a particular road user travels on regular or frequent occasions. This may be achieved by informing the system when that route is to be followed so that the route is stored for future reference. When the route is next to be travelled the user can then request from the system (eg by telephone or through a computer) a forecast of traffic conditions along that standard route.

Claims

Claims
1. A method of monitoring road traffic, which method comprises monitoring the transitions of mobile telephones between cells of a cellular mobile telephone network and correlating said transitions to movement of road traffic along highways passing through said cells.
2. A method as claimed in Claim 1, which method further comprises determining a sequence of cells through which a particular telephone passes or to which a particular telephone is assigned.
3. A method as claimed in Claim 2 , wherein said sequence is compared with sequences characteristic of particular highways and thereby used to identify the highway along which the particular telephone is travelling.
4. A method as claimed in any preceding claim, further comprising the step of excluding from consideration telephones exhibiting behaviour characteristic of telephones travelling other than by road.
5. A method as claimed in Claim 4, wherein said behaviour is simultaneous transition of numerous telephones from one cell to another.
6. A method as claimed in any preceding claim, further comprising the dissemination of information regarding the movement of the road traffic to road users.
7. A method as claimed in Claim 6, wherein said dissemination if by means of information conveyed to said road users in response to telephone calls placed by said road users.
8. A method as claimed in Claim 6, wherein said dissemination is by means of information transmitted continuously to the telephones of said road users.
9. A method as claimed in Claim 6, wherein said dissemination is by means of radio broadcast.
10. Apparatus for monitoring road traffic, which apparatus comprises means for monitoring the transitions of mobile telephones between cells of a cellular mobile telephone network and means for correlating said transitions to movement of road traffic along highways passing through said cells.
11. Apparatus as claimed in Claim 10, further comprising means for monitoring the sequence of cells of the cellular telephone network through which a particular telephone passes, or to which a particular telephone is assigned.
12. Apparatus as claimed in Claim 10 or Claim 11, further comprising means for disseminating information regarding the movement of road traffic to road users.
PCT/GB2000/002433 1999-06-25 2000-06-22 Traffic monitoring method WO2001001367A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU55515/00A AU5551500A (en) 1999-06-25 2000-06-22 Traffic monitoring method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9914812.4 1999-06-25
GBGB9914812.4A GB9914812D0 (en) 1999-06-25 1999-06-25 Traffic monitoring

Publications (1)

Publication Number Publication Date
WO2001001367A1 true WO2001001367A1 (en) 2001-01-04

Family

ID=10856009

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/002433 WO2001001367A1 (en) 1999-06-25 2000-06-22 Traffic monitoring method

Country Status (3)

Country Link
AU (1) AU5551500A (en)
GB (1) GB9914812D0 (en)
WO (1) WO2001001367A1 (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032800A1 (en) * 2000-06-28 2002-01-31 Mannesmann Ag Procedure for the acquisition of traffic situation data
WO2002043026A1 (en) * 2000-11-24 2002-05-30 Nokia Corporation Traffic monitoring
WO2002071364A1 (en) * 2001-03-05 2002-09-12 Siemens Aktiengesellschaft Method and device for carrying out a traffic analysis
WO2002077947A1 (en) * 2001-03-22 2002-10-03 Vodafone Holding Gmbh Method for generating traffic information
US6505114B2 (en) 2001-02-06 2003-01-07 Sergio Luciani Traffic monitoring system and method
WO2003046859A1 (en) * 2001-11-28 2003-06-05 Intel Corporation Using cellular network to estimate traffic flow
FR2834109A1 (en) * 2001-12-26 2003-06-27 France Telecom Delivery of traffic information to moving vehicles, uses mobile telephone cells along length of roadway and detects passing telephones to monitor traffic
EP1435600A1 (en) * 2002-12-30 2004-07-07 Motorola, Inc. Method and apparatus for determining the location of a wireless device
AT412594B (en) * 2002-07-24 2005-04-25 Oesterreichisches Forschungs U METHOD AND SYSTEM FOR DETERMINING TRAFFIC DATA
WO2006069594A1 (en) * 2004-12-31 2006-07-06 Telefonaktiebolaget Lm Ericsson (Publ) Route adherence monitoring system within a telecommunication system
US7142977B2 (en) 2001-11-05 2006-11-28 Elisa Oyj Method and system for collecting traffic data
GB2431261A (en) * 2005-10-10 2007-04-18 Applied Generics Ltd Route planner
DE102007013220A1 (en) * 2007-03-15 2008-09-18 Deutsche Telekom Ag Methods and apparatus for generating traffic information and its location within a spatial area
DE102007014633A1 (en) * 2007-03-23 2008-09-25 Deutsche Telekom Ag Method and system for detecting traffic congestion in a dynamically changing traffic situation
EP2135465A1 (en) * 2007-03-15 2009-12-23 AGIS Pte Ltd A method for location determination and a mobile device
WO2010090558A1 (en) * 2009-02-04 2010-08-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for tracking mobile terminals
GB2469327B (en) * 2009-04-09 2011-09-28 Vodafone Plc Real-time traffic navigation
US8064925B1 (en) 2008-10-08 2011-11-22 Sprint Spectrum L.P. Method and system for determining vehicle traffic characteristics from wireless network registrations
GB2497927A (en) * 2011-12-21 2013-07-03 Vodafone Ip Licensing Ltd Managing network load and controlling resources in response to determining the load
GB2497928A (en) * 2011-12-21 2013-07-03 Vodafone Ip Licensing Ltd Matching mobile telephone NUR to transport routes to infer traffic therein
US8818380B2 (en) 2004-07-09 2014-08-26 Israel Feldman System and method for geographically locating a cellular phone
US8825407B2 (en) 2011-12-21 2014-09-02 International Business Machines Corporation Determination of a route of a mobile device in a mobile network
US8918278B2 (en) 2000-08-28 2014-12-23 Inrix Global Services Limited Method and system for modeling and processing vehicular traffic data and information and applying thereof
US9418545B2 (en) 2011-06-29 2016-08-16 Inrix Holding Limited Method and system for collecting traffic data
US9798985B2 (en) 2009-02-02 2017-10-24 Inrix Holdings Limited Apparatus and methods for providing journey information
CN110930698A (en) * 2019-11-18 2020-03-27 北京交通大学 Front road transparent calculation method under 5G Internet of vehicles environment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5559864A (en) * 1993-03-05 1996-09-24 E-Systems, Inc. Cellular based traffic sensor system
EP0763807A1 (en) * 1995-09-14 1997-03-19 AT&T Corp. Traffic information estimation and reporting system
DE19638070A1 (en) * 1996-09-18 1998-03-19 Deutsche Telekom Mobil Procedure for the acquisition of traffic data using mobile radio devices
EP0859476A2 (en) * 1997-02-12 1998-08-19 Fujitsu Limited Mobile communication system for predicting a transfer location of a mobile station
DE19708106A1 (en) * 1997-02-28 1998-09-03 Bosch Gmbh Robert Device and procedure for information about traffic incidents

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5559864A (en) * 1993-03-05 1996-09-24 E-Systems, Inc. Cellular based traffic sensor system
EP0763807A1 (en) * 1995-09-14 1997-03-19 AT&T Corp. Traffic information estimation and reporting system
DE19638070A1 (en) * 1996-09-18 1998-03-19 Deutsche Telekom Mobil Procedure for the acquisition of traffic data using mobile radio devices
EP0859476A2 (en) * 1997-02-12 1998-08-19 Fujitsu Limited Mobile communication system for predicting a transfer location of a mobile station
DE19708106A1 (en) * 1997-02-28 1998-09-03 Bosch Gmbh Robert Device and procedure for information about traffic incidents

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032800A1 (en) * 2000-06-28 2002-01-31 Mannesmann Ag Procedure for the acquisition of traffic situation data
EP1297309B1 (en) * 2000-06-28 2006-09-27 Vodafone Holding GmbH Method for detecting travel information
US9552725B2 (en) 2000-08-28 2017-01-24 Inrix Global Services Limited Method and system for modeling and processing vehicular traffic data and information and applying thereof
US9324232B2 (en) 2000-08-28 2016-04-26 INRX Gloabal Services Limited Method and system for modeling and processing vehicular traffic data and information and applying thereof
US8918278B2 (en) 2000-08-28 2014-12-23 Inrix Global Services Limited Method and system for modeling and processing vehicular traffic data and information and applying thereof
WO2002043026A1 (en) * 2000-11-24 2002-05-30 Nokia Corporation Traffic monitoring
US6505114B2 (en) 2001-02-06 2003-01-07 Sergio Luciani Traffic monitoring system and method
WO2002071364A1 (en) * 2001-03-05 2002-09-12 Siemens Aktiengesellschaft Method and device for carrying out a traffic analysis
WO2002077947A1 (en) * 2001-03-22 2002-10-03 Vodafone Holding Gmbh Method for generating traffic information
US7142977B2 (en) 2001-11-05 2006-11-28 Elisa Oyj Method and system for collecting traffic data
WO2003046859A1 (en) * 2001-11-28 2003-06-05 Intel Corporation Using cellular network to estimate traffic flow
WO2003056532A1 (en) * 2001-12-26 2003-07-10 France Telecom Sa Method for delivering travelling mobile object traffic data
FR2834109A1 (en) * 2001-12-26 2003-06-27 France Telecom Delivery of traffic information to moving vehicles, uses mobile telephone cells along length of roadway and detects passing telephones to monitor traffic
AT412594B (en) * 2002-07-24 2005-04-25 Oesterreichisches Forschungs U METHOD AND SYSTEM FOR DETERMINING TRAFFIC DATA
EP1435600A1 (en) * 2002-12-30 2004-07-07 Motorola, Inc. Method and apparatus for determining the location of a wireless device
WO2004062312A2 (en) * 2002-12-30 2004-07-22 Motorola, Inc., A Corporation Of The State Of Delaware Method and apparatus for determining the location of a wireless device
WO2004062312A3 (en) * 2002-12-30 2004-08-26 Motorola Inc Method and apparatus for determining the location of a wireless device
US9026114B2 (en) 2004-07-09 2015-05-05 INRX Global Services Limited System and method for geographically locating a cellular phone
US9155060B2 (en) 2004-07-09 2015-10-06 INRX Global Services Limited System and method for geographically locating a cellular phone
US8818380B2 (en) 2004-07-09 2014-08-26 Israel Feldman System and method for geographically locating a cellular phone
WO2006069594A1 (en) * 2004-12-31 2006-07-06 Telefonaktiebolaget Lm Ericsson (Publ) Route adherence monitoring system within a telecommunication system
GB2431261A (en) * 2005-10-10 2007-04-18 Applied Generics Ltd Route planner
EP2135465A1 (en) * 2007-03-15 2009-12-23 AGIS Pte Ltd A method for location determination and a mobile device
EP2135465A4 (en) * 2007-03-15 2012-03-07 Agis Pte Ltd A method for location determination and a mobile device
DE102007013220A1 (en) * 2007-03-15 2008-09-18 Deutsche Telekom Ag Methods and apparatus for generating traffic information and its location within a spatial area
DE102007014633A1 (en) * 2007-03-23 2008-09-25 Deutsche Telekom Ag Method and system for detecting traffic congestion in a dynamically changing traffic situation
US8064925B1 (en) 2008-10-08 2011-11-22 Sprint Spectrum L.P. Method and system for determining vehicle traffic characteristics from wireless network registrations
US9798985B2 (en) 2009-02-02 2017-10-24 Inrix Holdings Limited Apparatus and methods for providing journey information
WO2010090558A1 (en) * 2009-02-04 2010-08-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for tracking mobile terminals
GB2469327B (en) * 2009-04-09 2011-09-28 Vodafone Plc Real-time traffic navigation
US9418545B2 (en) 2011-06-29 2016-08-16 Inrix Holding Limited Method and system for collecting traffic data
GB2497928A (en) * 2011-12-21 2013-07-03 Vodafone Ip Licensing Ltd Matching mobile telephone NUR to transport routes to infer traffic therein
GB2497927A (en) * 2011-12-21 2013-07-03 Vodafone Ip Licensing Ltd Managing network load and controlling resources in response to determining the load
US9357553B2 (en) 2011-12-21 2016-05-31 Vodafone Ip Licensing Limited Methods of analyzing a cellular network
GB2497928B (en) * 2011-12-21 2014-11-19 Vodafone Ip Licensing Ltd Transport system monitoring using mobile network data
GB2497927B (en) * 2011-12-21 2014-08-06 Vodafone Ip Licensing Ltd Methods of analysing a cellular network
US8825407B2 (en) 2011-12-21 2014-09-02 International Business Machines Corporation Determination of a route of a mobile device in a mobile network
US9843920B2 (en) 2011-12-21 2017-12-12 Vodafone Ip Licensing Limited Monitoring transport systems network traffic using mobile communications network usage records
US10228255B2 (en) 2011-12-21 2019-03-12 International Business Machines Corporation Determination of a route of a mobile device in a mobile network
US10557712B2 (en) 2011-12-21 2020-02-11 International Business Machines Corporation Determination of a route of a mobile device in a mobile network
CN110930698A (en) * 2019-11-18 2020-03-27 北京交通大学 Front road transparent calculation method under 5G Internet of vehicles environment
CN110930698B (en) * 2019-11-18 2021-05-04 北京交通大学 Front road transparent calculation method under 5G Internet of vehicles environment

Also Published As

Publication number Publication date
GB9914812D0 (en) 1999-08-25
AU5551500A (en) 2001-01-31

Similar Documents

Publication Publication Date Title
WO2001001367A1 (en) Traffic monitoring method
US6546330B2 (en) Method of presuming traffic conditions by using floating car data and system for presuming and presenting traffic conditions by using floating data
Caceres et al. Review of traffic data estimations extracted from cellular networks
US6947835B2 (en) Method for monitoring cellular communication, and system therefor
JP4733251B2 (en) Data collection method and system using mobile phone location matched with road network
EP1927963B1 (en) Incident resolution judgment system
EP1348208B1 (en) Traffic monitoring system
US8849309B2 (en) Method and system for forecasting travel times on roads
Janecek et al. Cellular data meet vehicular traffic theory: location area updates and cell transitions for travel time estimation
US20100211301A1 (en) System and method for analyzing traffic flow
JP2002536648A (en) Method and apparatus for obtaining relevant traffic information and for dynamic route optimization
KR20040086061A (en) Method for obtaining traffic information by using call data record of mobile
JP4295130B2 (en) Traffic information system
CN103177562A (en) Method and device for obtaining information of traffic condition prediction
CN101933061A (en) Method and system for determining road traffic jams based on information derived from a plmn
KR102159111B1 (en) Apparatus and method for providing risk information using mobile id group information
US6813247B1 (en) Traffic reporting system and method over wireless communication systems
US20200401959A1 (en) Emergency traffic management system using mobile device
KR100281049B1 (en) Service method of traffic information utilizing conventional wireless communication network
KR19990025223A (en) Traffic Information Provision System
JP2004240727A (en) Traffic information service system
Hounsell et al. Intelligent systems for priority at traffic signals in London: The INCOME project
RU2156500C1 (en) System for complex control over traffic
JP4549133B2 (en) Sampling method
KR101062823B1 (en) Real-time traffic information providing system using text message and method

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP