IRJET- Voice based Retrieval for Transport Enquiry System
July 4 BluFax Demo Briefing
1. Demonstration of Bluetooth-based Traffic Monitoring Technology Demonstration Results 4 th of July Weekend 2009 Prepared for: District of Columbia Department of Transportation Donna C. Nelson, PhD Transportation Perspectives Inc [email_address] Stan Young, PhD Traffax Inc [email_address]
11. Detection Zone A Bluetooth enabled device may be detected more than once as it passes through a detection zone. As traffic slows, the probability of getting multiple observation of the same MAC ID from a single device increases. BluFAX detects and records Mac addresses present within the detection zone. Size of detection zone depends on antenna strength, placement of units, and other factors related to the environment. Processing software configured to detect and address multiple detections. Transportation Perspectives Inc [email_address] A B L = Length of segment Detection Zones
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13. Demonstration Details 4 th of July Demonstration Transportation Perspectives Inc [email_address]
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16. Sensor Locations Adjacent to 7 th Street Indiana Avenue, NW One-way traffic Metro Entrance Sensor Location F Street, NW
17. Sensor Locations Adjacent to 7 th Street K Street S Street Sensor Location Sensor Location Transportation Perspectives Inc [email_address]
18. Data Format and Processing Transportation Perspectives Inc [email_address]
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22. Study Detection Rates 2 nd – 5 th July Spike in traffic due to exodus from fireworks display is shown at all stations.
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26. Segment Processing Travel Time - Minutes These results have not been confirmed through statistical analysis!. BluFAX plots a mean travel time based on all data points. Once that line is removed, the data points appear to group into three categories based on travel times: 2 to 3 minutes 5 to 15 minutes > 15 minutes Transportation Perspectives Inc [email_address] 18 21 24 3 6 9 12 15 18 21 24 3 6 9 12 15 18 21 24 3 6 9 12 0 5 10 15 20 25 30
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28. Building on time/location data Sensors record the time and location a specific ID is identified. Segments can be defined between stations for different purposes. A series of segments can be defined as a corridor to estimate through that corridor, but depending on how links are defined, may not reflect travel times on a specific roadway segment. . Travel time data will be based on the shortest distance between the two stations that form a segment. Time and location matches can be used to provide O-D data and/or derive turning movements. Transportation Perspectives Inc [email_address]
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Editor's Notes
01/06/10 01/06/10 I might move this slide to after the “Everyone is Looking for the Answer Slide” Deployment of BluFAX requires a minimum of two units. Spacing of units depends on the specific application and the environment.
![Demonstration of Bluetooth-based Traffic Monitoring Technology Demonstration Results 4 th of July Weekend 2009 Prepared for: District of Columbia Department of Transportation Donna C. Nelson, PhD Transportation Perspectives Inc [email_address] Stan Young, PhD Traffax Inc [email_address]](https://image.slidesharecdn.com/july4blufaxdemobriefing-12627980858611-phpapp01/85/July-4-BluFax-Demo-Briefing-1-320.jpg)
![Acknowledgements ,[object Object],This demonstration was conducted as a collaborative effort by: ,[object Object],[object Object],[object Object],Transportation Perspectives Inc [email_address]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)