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