Emerging Technologies for Traffic Modeling using Bluetooth and Cellular Enabled Data Collection
Traffic Data Collection With Bluetooth
Transcript of Traffic Data Collection With Bluetooth
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Traffic Data Collection With
Bluetooth
Jeff Galas
October 21, 2010
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Traffic Systems Center
Provide real time traffic information
Archive traffic volume and flow data
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Current Installation
Network of over 2400 pavement sensors
– Majority Cut Loop detectors
– Embedded loop detectors
– RTMS
– Microloops
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Current Installation
Vehicle Counts
Occupancy
Calculated Speed and Congestion
TRAVEL TIMES
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Travel Time Distribution
42 Freeway Dynamic Message Signs
14 Arterial Dynamic Message Signs
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Travel Time Distribution
LMIGA Website
Radio stations
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I 290 Resurfacing Project
25 centerline miles – 170 mainline loops
56 exit ramp loops – 96 ramp meter loops
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Temporary Traffic Sensors
• Dan Ryan Reconstruction
•I80 Reconstruction
• RTMS units
• $390 K for 7 miles
• Need alignment
with stage changes
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Temporary Alternatives
Do Nothing for Duration of Project– Media complaints
– Motorist complaints
RTMS – approx $1.2 Mil
Wireless Sensors – lane staging
Bluetooth– ?
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Bluetooth
Success in Indiana
Favorable results in Pennsylvania
Recent Trial in City of Chicago on Arterial
Multiple Vendors
Non-Invasive
Reasonable Cost
Quick Deployment
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Added to Construction Contract
Temporary Vehicle Detection System
Roadside Detector - each
Service Provider – cal month
ATMS Interface – L sum
Temp Det Sys Mo Maint – cal month
Temp Det Sys Rem Salv – L sum
TOTAL Bid Cost: $441,460
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Project Team
Aldridge Electric Roadside Installation
Traffic Control Corp Facilitator
Traffic Cast BlueTOAD
Delcan ATMS Integration
U of I LMIGA website
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What is
Wireless technology standard for exchanging data over short distances using 2.4 GHz radio freqencies
Swedish “Blatand” – epithet of 10th century king Harald I of Denmark who united dissonant tribes into a single kingdom
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What is
Traffic Cast
Bluetooth
Travel-time
Origination
And
Destination
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Roadside Device
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How Does it Work ?
Media Access Control
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Software LEDs
Heartbeat and Network Monitor
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Software LEDs
Bluetooth Device Captured
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Media Interest
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Media Interest
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Concerns
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Location of Stations
Approx 2 mile spacing
Located at major arterial crossings
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Installation
Median Lightpole
Support 40 lb
Solar panel
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Installation
Both sides of
Wide median
if distance
Exceeds 170 ft
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Installation
High Mast Lightpole
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Station Pairing
Travel Time Segments
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Web Page Reports
Sample Report
East of Wolf to Harlem Ave
Can be exported to spread sheet
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BlueTOAD during Eisenhower
Flooding July 24, 2010
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Pairing Matches - Weekday
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ATMS Integration
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ATMS DMS Integration
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LMIGA integration
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LMIGA Integration
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Anomalies
Light Rail (CTA trains)
Frontage Roads
Collector / Distributor Lanes
Construction Vehicles
Stopped Traffic
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How Does it Work ?
Compared Actual Driving
Time to Archived Segments
Overall Distance
Compared to Loops
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What it Can do
Accurate Travel Time
Determine Average Speeds
Origin – Destination Pairing
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What it Can’t do
Accurate Vehicle Counts
Occupancy or Density
Quickly Detect Stopped Traffic
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Applications After I290
On to the next Resurfacing
Arterial Monitoring
Remote Area Monitoring
Fill in Voids
Become Self-sufficient
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Longevity
Current Technology – Good
Cars / Phones / Computers / GPS
Lifespan ?
– Analog Phones
– Audio Cassettes
– CDs
– Betamax