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  1. Speed Limit Basics | FHWA - Federal Highway Administration

    • Learn the types, concepts, and engineering principles of speed limits, as well as the factors that influence them. Find out how speed limits are set by State and local agencies using engineering speed studies … See more

    Overview

    This article explains the different types of speed limits, including statutory speed limits, posted speed limits, school zone and work zone speed limits, variable and advisory sp… See more

    Federal Highway Administration
    Speed Limits

    Speed limits frame expectations for drivers and other roadway users. Properly set speed limits … See more

    Federal Highway Admi…
    Statutory & Posted

    Statutory speed limits are established by State legislatures while posted speed limits are sign-posted along the road and enforceable by law. A posted limit could be same as st… See more

    Federal Highway Administration
    School/Work Zones

    School zone speeds used in specific locations during school hours (15-25 mph), work zone speeds set as part of traffic control plan based on factors such as location of … See more

    Federal Highway Administration
    Variable/Advisory

    Variable speeds displayed on changeable message signs due to weather conditions etc., advisory speeds non-regulatory posted for isolated section of roadway to inform driver of sa… See more

    Federal Highway Administration
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  1. Street Speed Limit Map - ArcGIS

  2. Speeding Laws: How Fast You’re Allowed to Drive and Ticket

  3. WEBSpeed limits in the United States vary depending on jurisdiction. Rural freeway speed limits of 70 to 80 mph (113 to 129 km/h) are common in the Western United States, while such highways are typically posted at 65 …

  4. Speed Limits By State

  5. What Are the Interstate Speed Limits in Each State?

    WEBMay 2, 2018 · While many states have upped their maximum speeds to the 70 and 80 mph marks, it’s important to know the limits in each state so you don’t end up with red and blue flashing lights behind you....