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CONTINUING INVESTIGATION OF ANONYMOUS WIRELESS ADDRESS MATCHING (AWAM) FOR TRAVEL TIME DATA COLLECTION Darryl Puckett and Mike Vickich Houston, Texas. ITS World Congress Orlando, Florida October 19 , 2011. Presentation Overview. How we got here Application testing and results
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CONTINUING INVESTIGATION OFANONYMOUS WIRELESS ADDRESS MATCHING (AWAM) FOR TRAVEL TIME DATA COLLECTIONDarryl PuckettandMike VickichHouston, Texas ITS World Congress Orlando, Florida October 19, 2011
Presentation Overview • How we got here • Application testing and results • Deployments and alternatives • Upcoming applications
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
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
Existing Technologies TranStar system currently utilizes a combination of RFID (Transcore) and radar (Wavetronix) for travel time and speed information (over 450 combined)
Why try anything else? • Cost • Bluetooth peripherals are becoming widespread • Easier, non-intrusive field installation and maintenance
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.
IH-45 Deployment - Individual Matches with a rural incident impact on a 13 mile segment
West Houston Deployment Example Arterial Data (3 traffic signals between readers) Vehicles traveling within the Progression Band Vehicles which did not travel within Progression Band
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.
Synchronous: 8-10 second cycle (default process) Difference Between Synchronous and Asynchronous Travel Time Monitoring Application in Real-Time 00:56:AF:33:21:00 07:15:31 00:56:AF:33:21:00 07:15:40 22:00:00:DD:14:88 07:15:32 22:00:00:DD:14:88 07:15:40 12:CD:AC:35:01:76 07:15:33 12:CD:AC:35:01:76 07:15:40 HOST PROCESS (OR STORE LOCALLY) Asynchronous – Exclusive to AWAM 42:33:23:EE:AE:07 07:15:33 42:33:23:EE:AE:07 07:15:40 00:56:AF:33:21:00 07:15:35 00:56:AF:33:21:00 07:15:40 AE:42:39:00:01:06 07:15:38 AE:42:39:00:01:06 07:15:40 07:33:CC:36:00:AE 07:15:40 07:33:CC:36:00:AE 07:15:40 00:56:AF:33:21:00 07:15:40 00:56:AF:33:21:00 07:15:40 00:56:AF:33:21:00 07:15:31 22:00:00:DD:14:88 07:15:32 12:CD:AC:35:01:76 07:15:33 42:33:23:EE:AE:07 07:15:33 HOST PROCESS (OR STORE LOCALLY) AF:10:EE:07:21:56 07:15:33 00:56:AF:33:21:00 07:15:35 AE:42:39:00:01:06 07:15:38 23:00:00:00:AF:CC 07:15:38 07:33:CC:36:00:AE 07:15:40 00:56:AF:33:21:00 07:15:40 CC:42:00:21:12:DD 07:15:40
Bryan-College Station Deployments 24 units installed in existing signal cabinets Total coverage 36 directional miles
Current AWAM DeploymentsCity of Houston 50 locations, consistent with planned ATM/WiMAX deployments
Real-Time Travel Times on 400 directional miles of rural/suburban Interstate With cameras for Hurricane Evacuation monitoring
H-45 Deployment for Hurricane Evacuation Monitoring Map Interface
IH-45 Deployment for Hurricane Evacuation Monitoring Bluetooth Sensor and Axis Camera installed on Luminaire Pole
IH-45 Deployment for Hurricane Evacuation Monitoring Bluetooth Sensor and Axis Camera installed on Solar Power
Current IH-35 Deployment • Hillsboro to Georgetown • 5 locations • All solar BT only, • deployed in 4 hrs
Current Orlando Deployment • 4 locations • In existing signal cabinets • For ITS World Congress
Underway - Harris County 387 Intersections with Bluetooth Readers
Underway – Dallas ICM US 75 North of Dallas for Corridor Management
UpcomingSmart Corridor Deployment • DFW to Laredo • 150+ locations • Mix of power and equipment
Questions ?For more information:http://TTIHouston.tamu.edu/Bluetoothhttp://postoaktraffic.com