continuing investigation of anonymous wireless address matching (awam) for travel time data...
TRANSCRIPT
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CONTINUING INVESTIGATION OFANONYMOUS WIRELESS ADDRESS MATCHING (AWAM)
FOR TRAVEL TIME DATA COLLECTION
Darryl Puckettand
Mike VickichHouston, Texas
ITS World Congress
Orlando, Florida
October 19, 2011
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Presentation Overview
• How we got here• Application testing and results• Deployments and alternatives• Upcoming applications
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Houston Experience• Desire for expansion of existing travel
time map• Exploration of more cost effective
alternatives (AVI equip +$50k per site)• Demonstration of address matching
technologies• Assessment of feasibility• Field deployments for arterial networks
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Existing TranStar Website
• Award winning website experiences over 10 million page accesses/500,000 users per month on average
• Freeway travel times are very well received by the public
• Display of arterial travel times are desired by the public
• Existing AVI technology may not be cost effective for wide area deployment on arterials
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Existing Technologies
TranStar system currently utilizes a combination of RFID (Transcore) and radar (Wavetronix) for travel time and speed information (over 450 combined)
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Why try anything else?
• Cost• Bluetooth peripherals are becoming
widespread• Easier, non-intrusive field installation
and maintenance
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AWAM Concept
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Sample Antenna Coverage
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Ohio DOT Demo - Dayton
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Arlington Virginia Demo
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AWAM vs Toll Tags
To benchmark performance, The Bluetooth-based AWAM system was installed alongside a probe-based toll tag (AVI) system.
In this recent comparison, AWAM is collecting more data samples than the alternative technology.
This effort repeated a previous examination where, the AWAM samples were ~ 85% of the AVI matches. Thus illustrating that the apparent number of Bluetooth enabled devices (in discoverable mode) are actually increasing, not decreasing.
11
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IH-45 Deployment - Individual Matches with a rural incident impact on a 13 mile segment
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West Houston DeploymentExample Arterial Data (3 traffic signals between
readers)
Vehicles traveling within the Progression Band
Vehicles which did not travel within Progression Band
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Benefits
• Low cost, standards-based, non-proprietary equipment and protocols.
• Easy, non-intrusive field installation and maintenance.
• Large penetration of field devices and data samples.
• Real-time summary calculations.• Complete ownership of data by operating
agency.
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00:56:AF:33:21:00 07:15:3122:00:00:DD:14:88 07:15:32
12:CD:AC:35:01:76 07:15:3342:33:23:EE:AE:07 07:15:3300:56:AF:33:21:00 07:15:35
AE:42:39:00:01:06 07:15:3807:33:CC:36:00:AE 07:15:4000:56:AF:33:21:00 07:15:40
00:56:AF:33:21:00 07:15:4022:00:00:DD:14:88 07:15:4012:CD:AC:35:01:76 07:15:4042:33:23:EE:AE:07 07:15:4000:56:AF:33:21:00 07:15:40AE:42:39:00:01:06 07:15:4007:33:CC:36:00:AE 07:15:4000:56:AF:33:21:00 07:15:40
HOST PROCESS
(OR STORE LOCALLY)
00:56:AF:33:21:00 07:15:3122:00:00:DD:14:88 07:15:32
12:CD:AC:35:01:76 07:15:3342:33:23:EE:AE:07 07:15:33
00:56:AF:33:21:00 07:15:35AE:42:39:00:01:06 07:15:38
07:33:CC:36:00:AE 07:15:4000:56:AF:33:21:00 07:15:40
HOST PROCESS
(OR STORE LOCALLY)
AF:10:EE:07:21:56 07:15:33
23:00:00:00:AF:CC 07:15:38
CC:42:00:21:12:DD 07:15:40
Difference Between Synchronous and AsynchronousTravel Time Monitoring Application in Real-Time
Synchronous: 8-10 second cycle (default process)
Asynchronous – Exclusive to AWAM
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Bluetooth Field Equipment(signal cabinet)
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Bryan-College Station Deployments
24 units installed in existing signal cabinets
Total coverage 36 directional miles
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Current AWAM DeploymentsCity of Houston
50 locations, consistent with planned ATM/WiMAX deployments
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Current TranStar Speed Map
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Real-Time Travel Times on 400 directional miles of rural/suburban Interstate With cameras for Hurricane Evacuation monitoring
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H-45 Deployment for Hurricane Evacuation Monitoring Map Interface
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IH-45 Deployment for Hurricane Evacuation MonitoringBluetooth Sensor and Axis Camera installed on Luminaire Pole
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IH-45 Deployment for Hurricane Evacuation MonitoringBluetooth Sensor and Axis Camera installed on Solar Power
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TxDOT Planning Study – Brazos County
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Current IH-35 Deployment
• Hillsboro to Georgetown• 5 locations• All solar BT only, deployed in 4 hrs
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Current Orlando Deployment
• 4 locations• In existing signal
cabinets• For ITS World Congress
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Underway - Harris County 387 Intersections with Bluetooth Readers
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Underway – Dallas ICM US 75 North of Dallas for Corridor Management
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Current US1/I-95 Miami Demonstration
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UpcomingSmart Corridor Deployment
• DFW to Laredo• 150+ locations• Mix of power and
equipment
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Upcoming CaliforniaBorder Crossing Study
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Questions ?
For more information:
http://TTIHouston.tamu.edu/Bluetooth
http://postoaktraffic.com