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Intersection/Arterial Data

An intersection count consists of collecting turning movements (the number of vehicles making left, right, and through movements). Intersection counts provide a valuable insight into the turning movement characteristics and operational performance of intersections and are used for traffic signal warrant analyses, traffic safety analyses, forecasting, planning, seasonal peak development, and traffic mobility analyses.
Examples:

Allen  County
  • Coldwater Rd. and Dupont Rd.
  • Reed Rd. and Trier Rd.
  • Covington Rd. and W. Hamilton Rd.

Dekalb County
  • ​Britton St. and Houston St.


If you need assistance contact
Jeff Bradtmiller    (Senior Transportation Planner)
More Description

The concepts of capacity and level of service are central to the analysis of intersections.  Capacity analysis results in the computation of volume/capacity (v/c) ratios for each lane group.  The v/c ratio is the actual or projected rate of flow on a designated lane group during a 15-minute peak interval divided by the capacity of the lane group.  Although the capacity of the entire intersection is not defined, a composite v/c ratio for the sum of the critical lane groups within the intersection is computed as an indication of the overall intersection sufficiency.  
 
Level of Service (LOS) is defined in terms of delay, which is a measure of driver discomfort, frustration, fuel consumption, and lost travel time.  LOS is based upon the average stopped delay per vehicle for various movements within the intersection.  LOS is defined alphabetically, A through F, where A indicates the best LOS and F indicates the worst LOS.  LOS “A” describes operations with very low delays; most vehicles do not stop at all.  LOS “C” describes operations with longer delays, stopping vehicles are significant but many still pass through without stopping.  LOS “F” describes operations with delays unacceptable to most drivers, the intersection is exceeding capacity.

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  • Home
  • Planning
    • Bicycle & Pedestrian >
      • Bicycle & Pedestrian
      • Poka-Bache Connector >
        • Steuben County Poka-Bache
        • DeKalb County Poka-Bache
        • Allen County Poka-Bache
        • Wells County Poka-Bache
      • Horse Trails
    • Community Development >
      • ADA
      • Environment >
        • Air Quality
        • Red Flag
        • Water Quality
      • Grant Resources
      • Park Planning
      • Title VI
      • Water Trails
    • Highway >
      • ADA
      • Air Quality
      • Congestion Management Program
      • Corridor Analyses
      • Red Flag
      • Rural Plans
      • Safety
      • Title VI
      • Traffic Data >
        • Traffic counts
        • Traffic data request
        • Intersection/Arterial Data
        • Travel Time Studies
      • Traffic Incident Management
      • Transportation Improvement Program >
        • TIP Amendments for public comment
        • Approved Amendments & Administrative Modifications
      • Transportation Plans
    • Maps
    • Transit
  • Documents
  • Get Involved
    • Nircc mpo certification review
    • Calendar
    • Request for Proposals
    • Current Funding Opportunities
    • Documents for Public Comment
    • General Comment
    • Newsletter
    • Participation Plan
    • Receive Notices
    • TIP Amendments for public comment
    • UTAB
  • Info
    • About >
      • IARC
      • IMPO
    • Calendar
    • Contact >
      • Directions
    • Newsletter
    • Our Staff
    • Things of Interest
    • Transportation Summary Report
    • Useful Links
  • Search