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TransPHAT IP Radios Glenn Anderson Traffic Operations – System Operations Branch 2012 Traffic Engineers Meeting.

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Presentation on theme: "TransPHAT IP Radios Glenn Anderson Traffic Operations – System Operations Branch 2012 Traffic Engineers Meeting."— Presentation transcript:

1 TransPHAT IP Radios Glenn Anderson Traffic Operations – System Operations Branch 2012 Traffic Engineers Meeting

2 TransSTAMP, what is it? A system to automatically monitor the performance of our roadways – At this time we are focusing on arterials – Easier to deploy on interstates

3 Bluetooth Approx 10% of vehicles have Bluetooth on Ubiquitous

4 TransSTAMP Concept of Operations A Bluetooth device constantly broadcasts its unique address (MAC) so that other devices can find it and pair with it. If you listen for passing devices you can match the address at downstream locations to determine the travel time.

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6 Widely used

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8 In-house solution

9 Why build in-house? Integration with existing radios and routers – Remote communications to 1300 signals – Existing network can handle the data – Firewall problems previously worked through – No duplicate maintenance costs KYTC devices share existing signal network Initial reader cost – Commercial units - $5000 – KYTC unit $200 – Lower cost means we can install hundreds

10 Contractual issues – Recurring charges Preferred business model is a service (service = continuous cash flow) Cellular charges (a router at every reader) – $50/reader/month Data processing charges – $50/reader/month, more cash flow – Sole Source? Rebidding issues Apples vs Oranges if you have multiple vendors

11 GIS Integration – No national standards for roadway coding County, Route, Milepoint – KY milepoints start over at each county line Vendors forced into using least common denominator – Google maps – TIGER maps – TransSTAMP uses the KYTC GIS layers We leverage our existing GIS data Segment speed limits Linking to traffic signal layer

12 Data ownership – KYTC owns our data and can distribute as we see fit Data timeliness – Readers are polled every 5 minutes – Select segments will be automatically processed Transparency in data processing – No secret algorithms – Performance measures that we define and understand Still working on the PMs

13 Current Locations 75 TransSTAMP Readers: Paducah, Murray, Hopkinsville, Elizabethtown, Bardstown, Boone Co, Kenton Co, Frankfort, Versailles, London

14 Radcliff & E-Town

15 8 mile segment, US 60 Versailles to Frankfort, easy peasy

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17 1 mile segment, Frankfort, Chenault to US 421

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19 Another source of error – detection raduis 300 range with no attenuation more attenuation = more precision but fewer samples

20 85 th percentile speeds: 6:00 – 7: mph 7:00 – 8: mph 8:00 – 9: mph 1.4 mile segment, Kenton Co. KY 17 Tuscany to I 275

21 Single point data – no matching Delay – number of times a single device is detected before it leaves the area Volume – raw number of unique MAC addresses detected

22 Pros Continuous 24/7 travel time runs by thousands of real drivers Long term trends visible Reduces the need for GPSTravel data collection Supports MAP-21 federal initiative Can identify the time of day a problem is occurring Can identify if the congestion on a certain day was abnormal Bonus data such as delay and volume O-D Studies possible

23 Cons Accuracy suffers on shorter segments – For length <.3 mi the data is essentially unusable Delay includes all approaches – Good for an overall PM of the arterial – Bad since you cannot see just the coordinated direction Does not replace eyes in the field Does not show exactly where the delay is occurring or how to fix it Outlying data points inevitable

24 Sharing the data GIS Layer (future) – Standard Segments – Standard Time Periods – Standard Performance Measurements – Color coded map Custom Segments and periods – call – User friendly tool for analyzing data O-D tools (future)

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26 Our biggest obstacle: Finance Cabinet IT Procurement $51

27 TransPHAT News Version – April 2012 Adds some support for IP Radios

28 TransPHAT News Changes due to IP Radios – Communicate with multiple signals simultaneously – TransACT (Automatic Timing Comparison) not finished – System Wide observe features may be possible Second by second display may be limited by radio bandwidth – Automatic monitoring of RSSI and Temperature possible

29 TransPHAT News An update is coming – LabVIEW 2012 Run Time Engine – Full installation will be required for next version – At least its not Adobe Flash Player… Questions, Problems, Suggestions? – Very little feedback the last few years – is this good?

30 New Controllers, The Future?

31 IP Radios Old network – Ethernet (router) at master cabinet – Serial radios at locals New network – Ethernet (router) at master cabinet – Ethernet radios at each local Multiple devices can now share the network – TransSTAMP – Conflict Monitors – Cameras – Detectors – Controllers

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34 IP Radio Benefits Small size Extremely sensitive – good range Remote Access and diagnostics Multiple Repeating possible Network ID is text – easier to interpret Easy to program Serial and Ethernet interface Lower cost by about 1/2

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39 Repeating Example: 3 levels of repeaters

40 IP Radios – current issues De sensitization in certain installations – Repeaters? – Cabinets/Poles/Spans with grounding problems – New model adds additional surge protection – Have same problems with Encom 5200, we just do not have the ability to see it happening remotely

41 Remote management via browser IP address of the router ID of the traffic signal The number :51006 – Port = ID (#6) – Username = admin – Password = zombie

42 Reports Users List Use of reports, questions, comments

43 Questions? x3888


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