Work Zone Mobility and Safety Program
Photo collage: temporary lane closure, road marking installation, cone with mounted warning light, and drum separated work zones.
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Performance Measurement Examples

Performance Measurement

State DOTs

  • Florida DOT Performance Measures Reports - The Florida Department of Transportation (FDOT) produces three quarterly reports related to work zone performance measures:
    • Construction Cost and Time - This report provides information about the contracts let in each FDOT district, the dollar amount of those contracts, and other cost information, as well as the number of days in each contract, days added due to weather, and other information about the duration of the contract.
    • Construction Performance Measures Summary - This report provides information on the number of contracts passed for the quarter and the number of contracts reaching final acceptance for the quarter for each FDOT district, and related cost and duration performance measurement information for each district.
    • Florida Highway Patrol (FHP) Hireback Report - This report provides information with regards to the effectiveness of FDOT's work zone traffic enforcement efforts.  From this summary, one can estimate other efficiency measures such as hours of enforcement per mile per day, numbers of actions per hour of enforcement provided, or other indicators.
  • Missouri DOT Tracker - Missouri DOT's (MoDOT) Tracker is a tool to assess how well MoDOT delivers services and products to its customers. The Tracker is divided into 18 performance measures, based on MoDOT's Mission and Value Statements. Several of these measures relate directly to work zones, for example MoDOT is using an online survey to gain driver feedback on its state highway work zones to evaluate visibility and traffic flow.
  • Missouri DOT I-64 (US 40) Full Closure Performance Tracking - Highway 40 (Interstate 64) in St. Louis will be closed starting January 2, 2008 for two years as part of a $535 million rebuilding effort. One 5-mile stretch will be closed for 2008, and another segment will be closed in 2009. Missouri DOT (MoDOT) has established incentives for the Contractor that include tracking and meeting performance indicators for regional mobility. These indicators include volumes, average speeds, and travel times on Interstates and travel times on certain arterials in the region. MoDOT is also doing an in-depth evaluation of the impacts from and satisfaction with the closure approach, making use of various surveys to the public and businesses.
  • Ohio DOT Crash Analysis (HTML, PPT 1MB) - The Ohio DOT (ODOT) "Real-Time Work Zone Crash Data Analysis" compares historic, pre-construction crash data verses crashes occurring when a work zone is in effect.  The ODOT database breaks the work zone into half-mile segments, sorts the crashes into their proper segment, and performs a "before-after" comparison of the pre-construction and construction crash frequencies for each half-mile segment.  ODOT examines areas that show elevated work zone crash frequencies to make improvements in current work zones as well as in future work zone management practices.
  • San Diego TransNet - TransNet, developed by the San Diego Association of Governments, provides construction updates, project information, public meeting and hearing notices, and answers to frequently asked questions for projects in the San Diego area. The site also includes a feature called the TransNet Dashboard. The TransNet Dashboard provides detailed information for tracking project timelines, milestones, budgets, and expenditures.
  • Virginia DOT Dashboard - The Virginia Department of Transportation's (VDOT) Dashboard is a user-friendly, web-based system that provides current information on project status. The Dashboard reports on project advertisement schedules for bidding, project budgets and schedules, and work orders. It combines data from various VDOT computer systems and rates the projects' status according to the red, yellow and green colors of a traffic signal. VDOT focuses on addressing problems when projects are in the yellow zone.
  • Virginia DOT Work Zone Safety Checklist (PDF 237K) - VDOT developed this work zone safety checklist to provide a consistent and helpful way to review and document temporary traffic control in construction, maintenance, utility, and permit work zone operations. The checklist enables work zone deficiencies to be noted and detailed information provided to allow rapid and thorough correction of the problem.
  • Washington State DOT Performance Measures Library - WSDOT recently completed a best practices inventory of performance measurement practices in other state departments of transportation. This Performance Measures Library is a resource for researching these practices. It also includes links to national and international efforts and other notable performance reporting by city, county, and regional entities.

International

  • European Work Zone Study - In spring 2005, EuroTest (a European consortium of auto clubs) conducted a study of 50 work zones in 11 European countries in order to identify shortcomings and possibilities for improvement, as well as successful practices. The study focused on five key areas: the quality of the road signing and road markings, the traffic routing, information to motorists, the road surface and night time orientation.

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