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Traffic Engineering Applications of Drone Technology
2017
PBS Engineering and Environmental Inc. pbsusa.com 1
Traffic Engineering Applications of Drone Technology
John Manix, PE, Senior Traffic Engineer, PBSDerrick Westoby, Unmanned Aerial Survey Program Lead, PBS
Traffic Engineering Applications of Drone Technology
2017
PBS Engineering and Environmental Inc. pbsusa.com 2
If a picture is worth a thousand words…
…what does this say?
Video collection process
Clearanceprocess
Collect the data
Dronehardware
Traffic Engineering Applications of Drone Technology
2017
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Drone Hardware Considerations
Drone TypeFixed Wing
or Multi-Rotor
BatteryFlight TimeLimitations
CameraAngles & Positions
Clearances and Waivers
FAA waiversmay be required
Airspace waivers90+ days
Other waivershard to obtain
ALL commercial flights require a part 107 license.
Traffic Engineering Applications of Drone Technology
2017
PBS Engineering and Environmental Inc. pbsusa.com 4
Myra Road and US 12
Trucks and Roundabouts
1x
Traffic Engineering Applications of Drone Technology
2017
PBS Engineering and Environmental Inc. pbsusa.com 5
Trucks and Roundabouts
10x
Emerging Technology with High Potential
UAS is a valuable tool for:
Collecting smarter data
Understanding safety conflicts
Explaining complex issues
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2017
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Explaining Complicated Transportation Issues
Car wash site has existing driveway (#2) 75 feet from busiest intersection in Walla Walla. Proposed driveway #3 is with WSDOT right-of-way restrictions.
Site Driveway Close to Traffic Signal
This large commercial site may not be economically viable with right-in, right-out of driveway?
Traffic Engineering Applications of Drone Technology
2017
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Queuing Results
How does it model?
2018 SimTraffic modeling of intersection without the project
Traffic Engineering Applications of Drone Technology
2017
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UAS Shows Gaps in Traffic and Validate Model
Modeling with Project
Traffic Engineering Applications of Drone Technology
2017
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But will it be safe?
• What is the safe stopping distance?
• Safety is a function of vehicle speed
Data from the Sky
Traffic Engineering Applications of Drone Technology
2017
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Lessons Learned
• Our traffic modeling accurately estimated queue length.
• A full-access driveway has gaps to accommodate the car wash traffic.
• It is safe. Traffic speeds are slow speeds.
Understanding Safety Conflicts
Traffic Engineering Applications of Drone Technology
2017
PBS Engineering and Environmental Inc. pbsusa.com 11
Level of Service & Delay for Alternatives
Traffic Signal Alternatives
Traffic Engineering Applications of Drone Technology
2017
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UAS Evaluation
Mini-Roundabout Alternative
Traffic Engineering Applications of Drone Technology
2017
PBS Engineering and Environmental Inc. pbsusa.com 13
Lessons Learned
• Verified delay estimates• Showed effects of platoon and
short head-way• Showed need for left-turn lanes• Supported mini-roundabout
alternative
Collecting Smarter Data
Traffic Engineering Applications of Drone Technology
2017
PBS Engineering and Environmental Inc. pbsusa.com 14
Manual Parking Survey ResultsMay 23, 2017
Parking Area 8:30 AM 9:30 AM 10:45 AM1 29 34 272 22 28 283 8 10 64 15 11 95 84 95 676 108 123 757 173 179 948 5 4 69 36 34 1910 54 55 2311 27 26 16
Staff 28 31 29
Parking Data Collection via UAS
Parking Area 4 – Only one vehicle school parking
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Parking Data Collection via UAS
Parking Area 8 – three vehicles not related to school parking
Parking Data Collection via UAS
Parking Area 9 – two parked cars related to the school.
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2017
PBS Engineering and Environmental Inc. pbsusa.com 16
Parking Data Collection via UAS
Parking Area 11 - 15 vehicle related to Kennewick YMCA
School-in and Out Data Review
Aug 202017 School out/summer
Parking Area
9:00 A 9:30 A 10:00 A
4 3 1 1
8 3 2 3
9 2 2 2
11 8 15 32
May 232017 School in session
Parking Area
8:30 A 9:30 A 10:45 A
4 15 11 9
8 5 4 6
9 36 34 19
11 27 26 16
Traffic Engineering Applications of Drone Technology
2017
PBS Engineering and Environmental Inc. pbsusa.com 17
Lessons Learned• Get your request in early to FAA
for clearance to fly.• Aerial parking surveys can
provide:– Parking occupancy– Turn-over data– Parking distribution data– All data recorded on an aerial!
In Closing: What does UAS offer?
Doesn’t replace conventional data, but makes the data smarter
An important resource for understanding vehicle interaction
New details not seen from still or ground mounted cameras
For traffic For safety evaluations For data collection
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2017
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Thank you!
Questions & Answers
PBSUSA.COM/UAS
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