Leigh Oesterling

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Ohio Travel Demand Model Users Group March 15,
2007
ODOT CERTIFIED DESIGN TRAFFIC GUIDELINES

• Leigh Oesterling
• Modeling Forecasting Section
• Office of Technical Services
• Ohio Department of Transportation

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CERTIFIED TRAFFIC GUIDELINES

• The basic methodologies for developing certified
  design traffic are NOT changing.
• However, there are continuous improvements to the
  process, such as the development of this manual
  and maintaining electronic copies of all
  certified design traffic.

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CERTIFIED TRAFFIC GUIDELINES

• This Consultant Assisted Effort Includes
• A Manual of Procedures
• A FAQ added to the Modeling Forecasting
  website
• A Training Course
• Revised Customer Agreements with the District
  Offices
• A New Request Form

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Manual of Procedures

• The Certified Traffic Manual will be a reference
  guide for
• Persons requesting certified traffic
• Persons preparing traffic for certification.
• Persons using certified traffic.

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Manual of Procedures

• Focus on design designations, and will also
  include
• OTDMUGs Use of Models for Project Traffic
  Forecasting.
• turning movement forecasting techniques
• model post-processing techniques
• standards for traffic counts
• references to other data sources, such as the
  Access Management Manual, ODOT Traffic Monitoring
  Reports (seasonal factors, etc.)

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Manual of Procedures
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Frequently Asked Questions

• A quick reference guide regarding the certified
  traffic process.
• Will include definitions of common design factors
  (K, D, T24, TD, 8th highest hour)
• Will include references to other needed resources
  (traffic count data, NCHRP 255, etc.)

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Training Course

• Similar to Traffic Academy Courses
• 4-8 hours in duration
• Focus on design designations, not complex
  projects although these will be mentioned for
  comparison purposes.
• Course materials will include examples of
  worksheets used to prepare certified traffic.
• Pilot course expected by June 2007 (Targeting
  District Staff and Consultants)

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Update Customer Agreements

• Most agreements havent been updated for 7-8
  years.
• Allow for electronic correspondence, instead of
  hard copies.
• Electronic copies of any traffic not prepared by
  OTS (i.e., if consultant prepared traffic for
  certification)

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Update Customer Agreements

• Change turn-around time to
• 45 WORKING days
• from 60 calendar days.
• Include traffic count standards
• District suggestions for improvement to the
  process

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New Request Form
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New Request Form

• May be submitted electronically
• Form reminds user of all necessary information
  required to process a request for certified
  design traffic
• Reduce need for sending back requests for more
  information.

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Contact Information

• Leigh Oesterling, Proj. Analyses Adm.
• 614-752-5747
• Leigh.Oesterling_at_dot.state.oh.us
• Peggy Siddle, Transportation Planner
• 614-752-5734
• Peggy.Siddle_at_dot.state.oh.us
• Mark Byram, P.E., Section Supervisor
• 614-466-7825
• Mark.Byram_at_dot.state.oh.us

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SUGGESTIONS ? QUESTIONS?

• Your suggestions are welcomed and encouraged.
  Please call or email us.
• QUESTIONS AND COMMENTS..