wyoming dot connected vehicle pilot · • complete integration with existing/future wydot systems...
TRANSCRIPT
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Wyoming DOT Connected Vehicle Pilot
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AUGUST 28, 2019
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Outline
Overview of WYDOT I-80 OperationsConnected Vehicle Project Background Lessons Learned in the form of Issues
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Interstate 80 CorridorMore than 32 million tons of freight per year (at 16 tons per truck).
Truck volume is 30 to 55% of the total traffic stream on an annual basis • As much as 70% of the traffic
stream on a seasonal basis
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Interstate 80 CorridorWith elevations above 6,000 feet across the entire corridor, travel issues mimic those of a mountain pass.
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Focus on CVOs - FreightI-80 in Wyoming is a major east-west corridor
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Winter Weather - Snowfall
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Winter Weather – Blowing Snow
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April 16, 2015
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Interstate 80 Corridor
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April 20, 2015
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Interstate 80 Corridor
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I-80 CorridorOne of the most heavily instrumented rural corridors in the United States
136 Variable Speed Limit Signssupported by 94 traffic sensors
54 Electronic Message Signs44 Weather Stations52 Webcams
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WYDOT’s Approach
Roadway Design
• Good roadway design• Select best geometry using powerful modeling tools
Mitigation
• Slope modifications• Snowfence
Technology
• Intelligent transportation systems• Connected vehicle technology
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PILOT VISION
Fully integrated and secure CV System that transmits and receives data to/from other equipped vehicles and roadside infrastructure.
Vision• This entails:
• Complete integration with existing/future WYDOT systems and infrastructure.
• Secure data management.• Innate interoperability with all external equipment/vendors
and neighboring deployments.• Continuous maintenance of its robust CV infrastructure.
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Connected Vehicle Pilot: Security
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HSMOn-board
unitsHSM
Road-side units
VPNProtect data in transit
Database EncryptionTables w/ Potential
PII
SCMSCertificates
and Validation
FirewallsIPv4 and
IPv6
SECURITY BY DESIGN
HSM & Background
Checks For TMC
MisbehaviorDetection
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Issue – DSRC ShadowDSRC shadow created by box trailersAntenna placement was critical and we had to forge new ground on this researchCable had to be designed to minimize signal loss
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Issue – Truck ArticulationTrucks don’t track like carsBSM Part 1 is required but Part 2 is optionalThis causes problems for V2V issues like FCW
Strategy: Require Part 1 and Part 2Three pilot sites have agreed to use Basic Safety Message Parts 1 & 2
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Issue - Vendors
General code stability (crashing, GPS not coming on line, HMI disconnecting, offloading random)HSMs are essential Vendors seem to have limited resources -insufficient testing with products that do not feel ready for primetime
Strategy: Iron-clad contracts
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Issue – Data volume
Initially expected 54 terabytes of informationRelational databases choke on this much information
Strategy: Stand up a non-relational (no-sql) database and buy/rent big hardware
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Issue – SCMS IntegrationSCMS was supposed to be delivered by CAMPDelays resulted in transitionProfile agreement between Green Hills Data, Lear, and Sirius XM broke many things that were working
Strategy: Allow time for integration of SCMs
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Issue – Radio IntegrationQualcomm and LearNeeded an updated firmwareQualcomm radio was getting stuck on channels
Strategy: Vendors should have better service agreements
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Issue – Log File Size
DSRC off-loading and Over-The-Air update speed• At highway speeds, contact time
with vehicles is short and off-loading of data is a challenge
• We are collecting performance data for evaluation purposes
Strategy:Trim logged messages and have over the air updates be re-startable
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Issue – OBU Failing at Scale
Maintaining an OBU fleet is hard
Security obfuscation makes it harder
Strategy: Periodically touch OBUs to review fleets
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Issue – Technical challenge to network security
We went for the big play with full IPv6 end-to-endPublic sector networks typically do not think about or support IPv6This resulted in firewall updatesRouter configuration changes
Strategy: Continuously upgrade, patch, lock, probe and analyze
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Connected Vehicle Pilot
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visit the Wyoming Connected Vehicle Pilot website
wydotcvp.wyoroad.infohttps://wydotcvp.wyoroad.info