continuing investigation of anonymous wireless address matching (awam) for travel time data...
TRANSCRIPT
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
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 Concept
Sample Antenna Coverage
Ohio DOT Demo - Dayton
Arlington Virginia Demo
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
IH-45 Deployment - Individual Matches with a rural incident impact on a 13 mile segment
West Houston DeploymentExample 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.
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
Bluetooth Field Equipment(signal cabinet)
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
Current TranStar Speed Map
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 MonitoringBluetooth Sensor and Axis Camera installed on Luminaire Pole
IH-45 Deployment for Hurricane Evacuation MonitoringBluetooth Sensor and Axis Camera installed on Solar Power
TxDOT Planning Study – Brazos County
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
Current US1/I-95 Miami Demonstration
UpcomingSmart Corridor Deployment
• DFW to Laredo• 150+ locations• Mix of power and
equipment
Upcoming CaliforniaBorder Crossing Study
Questions ?
For more information:
http://TTIHouston.tamu.edu/Bluetooth
http://postoaktraffic.com