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Photo: multilane urban/suburban roadway that accommodates drivers, pedestrians and bicyclists that allows easy entry to and exit from businesses and other destinations.

Corridor Access Management

Outreach & Education
Technical Materials
Other Resources
State & Federal Research
National Partners

Imagine a multilane urban/suburban roadway where traffic is heavy, yet moves well; accommodates drivers, pedestrians, and bicyclists; allows easy entry to and exit from businesses and other destinations; and has fewer crashes and other conflicts. Chances are this road is benefitting from corridor access management, a strategy that seeks an appropriate balance between the safety and mobility of a roadway facility with the access needs of adjacent land uses.

While managing access at a single location may help improve safety and operations within an immediate vicinity, application of access management along an extended corridor has been shown to improve safety, mobility, accessibility, and even business along an entire stretch of roadway because it favorably impacts ALL properties along that corridor.

Effective access management on a corridor-wide scale can achieve:
 5-23% reduction in crashes along two-lane rural highways
 25-31% reduction in severe crashes along urban/suburban arterial roads

Corridor access management preserves the flow of people and freight, and enables safe access to businesses and neighborhoods using a combination of policies and strategies, such as closing, consolidating, or improving driveways, median openings, and intersections; adding or redesigning medians; and planned spacing of intersections, median openings, and driveways.

Photo: Corridor access management intersection

Studies conducted by State and local agencies, national organizations, and transportation trade associations consistently show that access management notably improves traffic flow and safety for travelers. In addition, strong evidence shows that it can ultimately improve business in many cases by making it easier to get to and from destinations. The FHWA Office of Safety identified corridor access management as a Proven Safety Countermeasure because of the ability of this strategy to reduce crashes

The FHWA Office of Safety identified corridor access management as a Proven Safety Countermeasure because of the ability of this strategy to reduce crashes.

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Outreach and Education

  1. plus symbol General Informational Materials

    • Benefits of Access Management Brochure [HTML] [PDF]
    • Safe Access is Good for Business Primer [HTML] [PDF]
    • Safety Benefits of Raised Medians and Pedestrian Refuge Areas Brochure [HTML] [PDF]
    • Access Management Principles Presentation [HTML] [PPT]
  2. plus symbol Access Management Related Pedestrian and Bicycle Case Studies and Educational

    • PEDSAFE Pedestrian Safety Guide and Countermeasure Selection System
      • Median (Crossing) Islands [HTML]
      • Driveway Improvements [HTML]
      • Improved Right-Turn Slip-Lane Design [HTML]
      • Left Turn Prohibitions [HTML]
      • Trail Intersection Improvements, Portland OR Case Study [HTML]
      • Crossing Islands, Eureka CA Case Study [HTML]
      • Improved Sidewalk Access – Aurora Avenue Corridor Project, Shoreline WA Case Study [HTML]
    • BIKESAFE Bicycle Safety Guide and Countermeasure Selection System
      • Medians and Crossing Islands [HTML]
      • Driveway Improvements [HTML]
      • Path Intersection Treatments [HTML]
      • Bridgeport Way Corridor Improvements, University Place WA Case Study [HTML]

Technical Materials

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Other Resources

State Highway Agency Roundabouts Resources (clik on orange-shaded boxes to open link in browser). AK - Arkansas (orange square) WA - Washington (orange square) MT - Montana (orange square) ND - North Dakota (white square) MN - Minnesota (orange square) MI - Michigan PA - Pennslyvania (orange square) NY - New York (white square) NH - New Hampshire (white square) OR - Oregon (orange square) SD - South Dakota (orange square) ME - Maine (white square) ID - Idaho (white square) WV - West Virginia (white square) NJ - New Jersey (orange square) VT - Vermont (orange square) MA - Massachusetts (orange square) WI - Wisconsin (orange square) IN - Indiana (orange square) RI - Rhode Island NV - Nevada (orange square) WY - Wyoming (orange square) NE - Nebraska (orange square) IA - Iowa (orange square) OH - Ohio (orange square) MD - Maryland (orange square) DE - Delaware (orange square) CT - Connecticut (white square) CA - California (white square) UT - Utah (orange square) KS - Kansas (orange square) KY - Kentucky (orange square) VA - Viriginia (orange square) NC - North Carolina (orange square) AZ - Arizona (orange square) LA - Louisiana (orange square) GA - Georgia (orange square) FL - Florida (orange square) DC - District of Columbia (white square) HI - Hiwaii (white square) NM - New Mexico (white square) CO - Colorado (white square) MO - Missouri (white square) TN - Tennessee (white square) OK - Oklahoma (white square) AR - Arkansas (white square) MS - Mississippi (white square) SC - South Carolina (white square) TX - Texas (white square) AL - Alabama (white square) PR - Pueto Rico (white square)

State & Federal Research

  1. plus symbol Prior to 2005

    • Access Management on Crossroads in the Vicinity of Interchanges (NCHRP Synthesis 332) (TRB, 2004) [PDF]
    • Estimating the Impacts of Access Management Techniques (Texas, 2004) [PDF]
    • Investigation of Access Point Density and Raised Medians: Crash Analysis and Microsimulation (Texas, 2004) [PDF]
    • Model Regulations and Plan Amendments for Multimodal Transportation Districts (Florida, 2004) [PDF]
    • Access Management for Kentucky (Kentucky, 2004) [PDF]
    • Driveway Regulation Practices (NCHRP Synthesis 304) (TRB, 2002) [PDF]
    • Economic Impacts of Access Management (Washington State, 2002) [PDF]
    • Economic Impacts of Access Management (Florida, 2000) [PDF]
    • Impacts of Access Management Techniques (NCHRP Report 420) (TRB, 1999) [PDF]
    • Public Understanding of State Highway Access Management Issues (Minnesota, 1998) [PDF]
    • Statistical Relationship between Vehicular Crashes and Highway Access (Minnesota, 1998) [PDF]

National Partners

Photo: Corridor Access Road

Page last modified on February 1, 2017
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