Automatic Vehicle Identification (AVI) Versus Anonymous Wireless Address Matching (AWAM) also known as Bluetooth

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1 Automatic Vehicle Identification (AVI) Versus Anonymous Wireless Address Matching (AWAM) also known as Bluetooth Magdy Kozman,P.E. Texas Department of Transportation Transportation Operation Engineer Texas Department Of Transportation 2/11/2015 1

2 Houston speed map background 1. The (AVI) system technology developed by the Amtech Systems Division of TransCore to collect the real-time traffic information Houston was the first city to apply AVI technology for monitoring traffic conditions and background Information on IH 10,US 290, IH 45 and US June 1997 ( phase 2 and 3) installation was completed to cover BW8, US In year 2000 _ was the year to improve the system Field Setups to cover each lane Components to implement the wireless communication Texas Department Of Transportation 2/11/2015 2

3 Antenna Transmits RF Signal Multiplexer Splits RF Signal 5 Ways Card Cage Houses Processor Boards RF Module Generates Radio Frequency Power Supply (AC to DC) Powers ADP Reader Card Collects Data Processor Boards Interprets Data AVI Equipment Cabinet Texas Department Of Transportation 2/11/2015 3

4 Houston Background 1. Regional desire for expansion of existing traffic monitoring system. 2. Exploration of most cost effective alternatives. 3. Feasibility for arterial networks. 4. Feasibility for rural Interstate and Hurricane Evacuation Monitoring Texas Department Of Transportation 2/11/2015 4

5 Reduction Of Travel Time In 2013, the reduction of travel time attributable to Houston TranStar operation was estimated to be over 15.6 million vehicle-hours. This level of delay savings has a corresponding value of over $340 million in road user cost savings and an additional $99 million (or more than 29 million gallons) in reduced fuel consumption. The total estimated benefits of Center operation in 2013 were over $438million. Comparing the annualized TranStar operating cost estimate of $30.1 million. Travel Time Monitoring System 1322 directional miles of coverage (AVI+AWAM). Texas Department Of Transportation 2/11/2015 5

6 To HW 6 Hempstead Houston area To Dallas Texas Department Of Transportation 2/11/2015 6

7 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 Texas Department Of Transportation 2/11/2015 7

8 Why Bluetooth? AVI installation cost is about up to 110 K and it requires freeway lane closure. AVI maintenance cost is about $ 26K a month with total of half million dollar a year. Bluetooth is easier to install and does not require freeway lane closures. Installation cost up to 10k per site. Maintenance cost is about 10k per month for 150 site. Texas Department Of Transportation 2/11/2015 8

9 Address Matching Concept Texas Department Of Transportation 2/11/2015 9

10 Bluetooth AC Installation USB Cable to BT Adapter/Antenna Bluetooth Field Process Controller Cellular Modem (USB) Traffic Signal Cabinet (Typical) Roadway Lighting (Typical) Texas Department Of Transportation 2/11/

11 Bluetooth Solar Installation Stand-Alone Solar (Typical) Texas Department Of Transportation 2/11/

12 I-45 Existing Deployments Houston to Dallas 22 locations Mix of power and equipment 400+ miles of Directional Coverage Texas Department Of Transportation 2/11/

13 IH 45 North Freeway during Hurricane Rita Evacuation Texas Department Of Transportation 2/11/

14 Goals for Hurricane Evacuation Monitoring Evacuate the population in danger of Storm Surge in a safe, timely and orderly fashion Provide always-on live traffic data on the 200+ centerline miles of IH-45 between Houston and Dallas Texas Department Of Transportation 2/11/

15 More TranStar Web Tools Texas Department Of Transportation 2/11/

16 Example of Weather Impacts, Rural Interstate (I-45, Ennis County, Texas) I-45 NB, From Business 45 to US-287 (11.7 miles) - Individual MAC Address Matches Sunday 10/24/2010 I-45 SB, From US-287 to Business 45 (11.7 miles) - Individual MAC Address Matches - Sunday 10/24/2010 Texas Department Of Transportation 2/11/

17 Texas Department Of Transportation 2/11/

18 Current Coverage Summary Location Number of Readers Directional Mileage IH 10 Katy IH 10 East US IH - 45 North IH - 45 Gulf US - 59 Eastex US- 59 Southwest IH Loop BW SH SH US 90 A Total Lo Texas Department Of Transportation 2/11/

19 Texas Department Of Transportation 2/11/

20 Texas Transportation System Texas Department Of Transportation 2/11/

21 Questions? Texas Department Of Transportation 2/11/

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