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RESEARCH AND TECHNOLOGY
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US 30 Wrong-Way Detection
APWA
September 11, 2014
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Project Location
2
Boone Nevada
Ames
25 miles
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Situation/Background 110+/- (911 calls) Wrong Way Drivers
(WWD) in the last 5 ½ years.
many more eye witness (friends & co-workers)
7 WWD Crashes in last 10 years
3 Fatalities
2 were from a “U” turn on mainline
1 was coded as “unknown”
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Wrong Way Drivers on ramps/entrance points – self correct
Wrong Way Drivers on Mainline
911 calls
Injury Crashes Crashes
Just How Many are there?
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Fatal
Crashes
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0
5
10
15
20East in West
West in East
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Reported Wrong-
Way Vehicles
101 calls
Updated 10/24/13
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Project Goals Determine where WWDs are occurring
Determine what the driver was doing before the
incorrect movement was made
Did they self correct quickly?
After a pattern is determined, treat specific
area with enhanced signing, painting, and
lighting. (Low-Medium Cost)
If problem continues, use ITS (Medium cost)
May need to consider geometric changes
(High Cost)
Notify 911 centers to intercept (was #2+
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What type of
Driver are we
Targeting?
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Targeted Drivers
60% were DUI, Driving Under Influence
Elderly
Confused / Distracted
Ghost Driving???
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Low-Cost /
Updates in
2012
Review with
a “Checklist”
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Summary of 911 Calls
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0
5
10
15
20
25
30
35
2008 2009 2010 2011 2012before
2012after
2013
Projected
Actual
Before Basic
Counter Measures
6
months
After
6
months
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1st Steps – Use what we
currently have –
Cameras
(Portable & Existing)
During Spring 2012 - Activated
I-35 NB Gate Camera
2 portable camera trailers
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Quickly moved to look
at system that „detects‟ WWD
Created a “Test Bed” and invited
vendors that claim they can do wrong
way driving detection (using video
analytics)
Performed testing November
What is “Video Analytics?
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Testing!!!!
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Tuesday, Nov. 12th 2013
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Test Vehicles
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And Ames Police!!! :0))
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Dayton Ave.
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Duff Ave.
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Duff Ave – Day Test
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University Blvd.
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Test Clip
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E-mail Notice
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“Test Bed” Evaluation Found that Video Analytics is mature
enough to detect Wrong-way driving
Still must deal with „False Positives”
Final report can be found:
www.enterprise.prog.com
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Current Status
One vendor has allowed us to continue
to test
Funding for corridor deployment has not
been approved yet.
Other companies are taking note and
coming up with new systems
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Now with a built in Camera!
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Positives of “Point of entry”
Video Detection
Eliminates multiple sensors
Can identify actions before WWD
Confirm / Remove False Detections
Can find out what was going on during
self correction phase
Speeds up time to determine problem
areas
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Coordination with ITS System
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ITS Camera & Sensor
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Traffic Sensor
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E-mail Alert
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Separate
Systems :0(((
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Benefits of both deployments
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Dayton Ave.
After system was turned on, Nov 13 it
detected 2 WWD within a few weeks.
One 100% positive, one 98% positive
Waiting for 3rd…. But that took 7 more
months. 3rd one
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However, still have
FALSE-Positives alerts
Ambulance
Truck Driver
Mowers
Unauthorized “tester”
Clouds
Exhaust
Headlights 37
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Benefits of ITS Sensors
(Mid Interchange)
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Have to See it to Believe it!
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About 2 weeks Later
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Lessons learned
Must have video confirmation
Locations that you don‟t think a WWD
would happen, actually do!
10 second video clips are too short
Combination of entry points and mid
interchange are a good idea.
Test daily (8am, reverse flow detection)
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Last Friday Night
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Possible (Additional) Counter
Measures only at recurring
locations
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Red Pavement Markers
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Angle DO NOT ENTER signs
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