Considerations for the Development of Work Zone Mobility Performance Measures and Thresholds for Virginia Freeways.
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields



Publication Date Range:


Document Data


Document Type:






Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page


Considerations for the Development of Work Zone Mobility Performance Measures and Thresholds for Virginia Freeways.

Filetype[PDF-866.66 KB]

  • English

  • Details:

    • Corporate Contributors:
    • Publication/ Report Number:
    • Resource Type:
    • Geographical Coverage:
    • Abstract:
      "The Federal Highway Administration has been encouraging states to improve their monitoring and tracking of the

      mobility impacts of work zones. The use of mobility performance measures will enable agencies to assess better the

      contribution of work zones to network congestion; to identify specific projects that are in need of remedial action; and

      potentially to assess penalties to contractors creating excessive, avoidable negative impacts. Although the Virginia Department

      of Transportation (VDOT) has defined allowable lane closure hours for the interstate system, VDOT has not defined specific

      performance measures and thresholds for what constitutes “unacceptable” work zone mobility impacts. Performance measures

      and thresholds have been developed by a number of other states, so there is a need to determine whether these could be adapted

      for use by VDOT.

      This study explored issues related to a potential work zone mobility performance measurement program for Virginia.

      The issues investigated included identification of potential performance measures, definition of performance thresholds, and

      recommendations for data sources for performance measurement calculations. This information was synthesized from

      information regarding the experiences of selected states and experiences from a series of case studies that used data from

      Virginia work zones. The review of experiences in selected other states found that delay and queue length were the performance

      measures used most often by the states studied. The Virginia case studies focused on the use of private sector data to generate

      mobility performance measures and found that the level of spatial aggregation in rural areas could inhibit the ability to generate

      accurate performance measures, although granularity was better on urban roads. The level of temporal aggregation was also

      found to influence performance measures.

      The research identified a number of key issues that VDOT should consider as a work zone mobility performance

      measures program is developed. The report recommends that VDOT develop a pilot program that focuses on urban interstates

      initially and convene a task group to develop formal policies and procedures for use in the state."

    • Format:
    • Main Document Checksum:
    • File Type:

    Supporting Files

    • No Additional Files

    More +

    You May Also Like

    Checkout today's featured content at

    Version 3.21