Method and system for obtaining recurring delay data using navigation systems
First Claim
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1. A method of obtaining data for a geographic database using a mobile computing platform moving in a geographic region comprising the steps of:
- collecting speed and position data of the mobile computing platform as the mobile computing platform travels in the geographic region to provide collected speed and position data, wherein time data is collected with said collected speed and position data;
filtering the collected speed and position data to remove the collected speed and position data related to traffic congestion to provide filtered speed and position data;
evaluating the filtered speed and position data to identify a location of a recurring delay point at which the speed of the mobile computing platform is less than a speed limit for a road on which the mobile computing platform is located, wherein said recurring delay point comprises at least one of;
a school zone, a railroad crossing, and a hill;
evaluating the filtered speed and position data to determine a delay amount associated with the recurring delay point, wherein said delay amount represents a speed reduction of the mobile computing platform from said speed limit at said location of the recurring delay point; and
updating the geographic database to indicate the location and the delayamount of the recurring delay point.
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Abstract
A method for collecting data for a geographic database is disclosed. Speed and position data are collected using a plurality of mobile computing platforms moving in a geographic region. The speed and position data are analyzed to identify a location of a recurring delay point corresponding to a change in the speed. The geographic database is updated to indicate the location of the recurring delay point.
87 Citations
23 Claims
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1. A method of obtaining data for a geographic database using a mobile computing platform moving in a geographic region comprising the steps of:
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collecting speed and position data of the mobile computing platform as the mobile computing platform travels in the geographic region to provide collected speed and position data, wherein time data is collected with said collected speed and position data; filtering the collected speed and position data to remove the collected speed and position data related to traffic congestion to provide filtered speed and position data; evaluating the filtered speed and position data to identify a location of a recurring delay point at which the speed of the mobile computing platform is less than a speed limit for a road on which the mobile computing platform is located, wherein said recurring delay point comprises at least one of;
a school zone, a railroad crossing, and a hill;evaluating the filtered speed and position data to determine a delay amount associated with the recurring delay point, wherein said delay amount represents a speed reduction of the mobile computing platform from said speed limit at said location of the recurring delay point; and updating the geographic database to indicate the location and the delay amount of the recurring delay point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 21)
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16. A method of obtaining data for a geographic database representing a geographic region using a plurality of vehicles comprising the steps of:
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recording speed and position data from each of said plurality of vehicles to provide recorded speed and position data; sending the recorded speed and position data to a central facility; filtering the recorded speed and position data to remove the recorded speed and position data related to traffic congestion to provide filtered speed and position data; performing statistical analysis on said filtered speed and position data of the vehicles to identify a slow down location at which the recorded speed and position data indicates that a portion of said vehicles that pass said slow down location decrease said respective speed by at least a predetermined amount; inferring a location of a recurring delay point at said identified slow down location, wherein said recurring delay point comprises at least one of;
a school zone, a railroad crossing, and a hill;determining a speed reduction amount associated with the identified slow down location; and storing data in the geographic database to indicate the location and the speed reduction amount of the recurring delay point. - View Dependent Claims (17, 18, 22)
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19. A method of collecting data for a geographic database that represents roads in a geographic region, the method comprising:
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with a plurality of vehicles that travel along the roads, collecting speed and position data of said vehicles that travel along the roads to provide collected speed and position data; filtering the collected speed and position data to remove the collected speed and position data related to traffic congestion to provide filtered speed and position data; statistically analyzing said filtered speed and position data to identify a location at which a portion of said vehicles that pass said location decrease said speed to infer a location of a recurring delay point, wherein said recurring delay point comprises at least one of;
a school zone, a railroad crossing, and a hill;evaluating said filtered speed and position data to determine a time delay associated with the recurring delay point; and storing data in said geographic database to indicate the location and time delay of said recurring delay point. - View Dependent Claims (20, 23)
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Specification