Virtual Weigh Stations

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Virtual Weigh Stations
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CHP Perspective

• ITS technology can automate certain non-personnel
  dependant weigh station functions
• Its use could also enhance CHP operations by
  complimenting existing network of fixed
  commercial enforcement facilities

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Non-personnel dependant functions

• Carrier/vehicle identification
• Security scanning
• Electronic pre-clearance
• Credential verification

• Weight
• Dimensions
• OS/OW permits

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Electronic Pre-clearance

• Existing Contract with PrePass and ACS
• Already integrated with national programs
• Huge infrastructure already in place (35 sites)
  in California
• The state does not have the resources to readily
  replace the system
• Credential checks and weight verification already
  in place
• Bypass policy is established by CHP

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Data Already Being Captured by PrePass
Weight data Vehicle length Axle weight Axle
spacing Weight violations (singles, tandems,
bridge, and gross) Carrier information Carri
er name Owner equipment Base state License
plate Safety Ratings Credential
status Registration Fuel Tax Hazmat License
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VWS Location Needs

• Areas of homeland security concern
• High traffic areas away from existing
  facilities
• Existing Port Corridors
• Areas where CVEF construction is too costly, or
  not feasible
• Areas with substantial weight violations

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Possible VWS Homeland Security Applications

• Load examination from above
• Security scanning radiation
• Security scanning hazardous materials
• License plate/DOT scanning
• Photo record of hit
• Vehicle identified if there is a hit
• Transmission to CHP dispatch
• Vehicle tracking

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VWS Need to Integrate with Existing Commercial
Enforcement Program

• Existing commercial IT infrastructure
• PrePass
• State network (CHP/Caltrans/DMV/BOE)
• FMCSA network
• CVISN goals

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Beneficial WIM Network Information

• Traffic statistics and patterns
• Weight statistics and patterns
• Dimensions statistics and patterns
• Summary upload to CHP network

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What Virtual Weigh Stations Can Not Do

• Evaluation of driver
• Complete mechanical inspections
• Place unsafe vehicles out of service

• Enforce all related laws and regulations

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Current Hurdles for Automated Enforcement

• Unsafe vehicles need to be placed out of service
• Photos of drivers more difficult at freeway
  speeds
• Officers presence needed for certain violations
• Owners responsibility issues
• Legislation needed

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• Integrated Vehicle-Based Safety Systems (IVBSS)
• jimsayer_at_umich.edu

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IVBSSWhat is it?

• UMTRI-led cooperative agreement with U.S. DOT
• National Highway Traffic Safety Administration
  and Federal Motor Carrier Safety Administration
• Develop and field test integrated vehicle-based
  safety systems (IVBSS)
• Passenger cars and commercial trucks
• 4-year, 31.6M program
• 25M from U.S. DOT, 6.6M partner cost-share

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Goal of IVBSS

• Integrate
• Lateral Drift
• Lane Change/Merge,
• Forward Crash, and
• Curve Speed Warnings (light vehicle only)
• Assess the systems for
• Safety benefits
• Driver acceptance / ease of use
• Willingness to purchase / marketability

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IVBSS Subsystems

• Forward crash warning
• Address rear-end crashes
• Lateral drift warning
• Address lane/road departure crashes
• Lane change/merge warning
• Address lane change crashes
• Curve Speed Warning
• Address road departures in curves
• Light vehicle platform only

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The Integration Challenge

• IVBSS evaluates integration from a variety of
  perspectives
• Enhanced performance of any one subsystem
• Enhanced safety with multiple threats
• Benefits of a fully integrated driver-vehicle
  interface
• The role of the surrounding environment on a
  drivers decision to perform certain actions

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Accident Problem

• Rear end, lane change/merge and road departure
  crashes account for almost 50 of all motor
  vehicle fatalities in the U.S.
• 60 of car crashes (19,100 fatalities/year)
• 60 of truck crashes (1,100 fatalities/year)

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Summary of Progress

• In the firs 2 years the systems have been
  developed, integrated into vehicles and
  verification testing performed
• Analysis of the verification test results is
  ongoing
• Authorization to proceed to Phase II, fleet build
  and FOT, is expected in late November

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Thank You
Lt. Tom Gunther California Highway Patrol
Commercial Vehicle Section 444 North 3rd Street,
Suite 310 Sacramento, CA 95814-0228 (916)
445-1865 E-mail tgunther_at_chp.ca.gov