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  2. Federal Motor Vehicle Safety Standards - Wikipedia

    en.wikipedia.org/wiki/Federal_Motor_Vehicle...

    List of FMCSA standards for motor vehicles Archived 2013-03-28 at the Wayback Machine "Timeline of Federal Motor Vehicle Safety Standards by Year and Notable Technologies" (PDF). National Highway Traffic Safety Administration. 2012. Archived from the original (PDF) on 2021-06-24

  3. National Traffic and Motor Vehicle Safety Act - Wikipedia

    en.wikipedia.org/wiki/National_Traffic_and_Motor...

    The Act was the first mandatory federal safety standards for motor vehicles. The Act created the National Highway Safety Bureau (now National Highway Traffic Safety Administration). The Act was one of a number of initiatives by the government in response to increasing number of cars and associated fatalities and injuries on the road following a ...

  4. Assured clear distance ahead - Wikipedia

    en.wikipedia.org/wiki/Assured_Clear_Distance_Ahead

    The speed values in this table are produced from the formula using an "average" coefficient of friction (μ) of 0.7, and a perception-reaction time of 1.5 seconds. Speed values specific to a given circumstance can be obtained with the same formula using the appropriate reference constants specific to the circumstance.

  5. Safety integrity level - Wikipedia

    en.wikipedia.org/wiki/Safety_integrity_level

    According to IEC 61508, the SIL concept must be related to the dangerous failure rate of a system, not just its failure rate or the failure rate of a component part, such as the software. Definition of the dangerous failure modes by safety analysis is intrinsic to the proper determination of the failure rate. [citation needed]

  6. Automotive Safety Integrity Level - Wikipedia

    en.wikipedia.org/wiki/Automotive_Safety...

    Automotive Safety Integrity Level (ASIL) is a risk classification scheme defined by the ISO 26262 - Functional Safety for Road Vehicles standard. This is an adaptation of the Safety Integrity Level (SIL) used in IEC 61508 for the automotive industry. This classification helps defining the safety requirements necessary to be in line with the ISO ...

  7. Level of service (transportation) - Wikipedia

    en.wikipedia.org/wiki/Level_of_service...

    The following section pertains to only North American highway LOS standards as in the Highway Capacity Manual (HCM) and AASHTO Geometric Design of Highways and Streets ("Green Book"), using letters A through F, with A being the best and F being the worst, similar to academic grading. A: free flow. Traffic flows at or above the posted speed ...

  8. Scott's Law - Wikipedia

    en.wikipedia.org/wiki/Scott's_Law

    Scott's Law, 625 ILCS 5/11-907(c), is a mandatory move over law in the state of Illinois. [1] The law requires that all motorists move over when encountering stopped or disabled emergency vehicles displaying warning lights. [2]

  9. Variable-message sign - Wikipedia

    en.wikipedia.org/wiki/Variable-message_sign

    VMS systems were deployed at least as early as the 1950s on the New Jersey Turnpike. [3] The road's signs of that period, and up to around 2012, were capable of displaying a few messages in neon, all oriented around warning drivers to slow down: "REDUCE SPEED", followed by a warning of either construction, accident, congestion, ice, snow, or fog at a certain distance ahead. [4]