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  2. VASCAR - Wikipedia

    en.wikipedia.org/wiki/VASCAR

    The greater the distance (to the limit of the device), the more accurate the average speed. The primary weakness of VASCAR is that it can be easily falsified. A second weakness is that it can only provide an average speed, in contrast to the near-instant speed readout of a Doppler-effect system.

  3. 0 to 60 mph - Wikipedia

    en.wikipedia.org/wiki/0_to_60_mph

    The time it takes a vehicle to accelerate from 0 to 60 miles per hour (97 km/h or 27 m/s), often said as just "zero to sixty" or "nought to sixty", is a commonly used performance measure for automotive acceleration in the United States and the United Kingdom. In the rest of the world, 0 to 100 km/h (0 to 62.1 mph) is used.

  4. Google Maps - Wikipedia

    en.wikipedia.org/wiki/Google_Maps

    Google Maps is a web mapping platform and consumer application offered by Google. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets (Street View), real-time traffic conditions, and route planning for traveling by foot, car, bike, air (in beta) and public transportation.

  5. Radar speed gun - Wikipedia

    en.wikipedia.org/wiki/Radar_speed_gun

    A radar speed gun, also known as a radar gun, speed gun, or speed trap gun, is a device used to measure the speed of moving objects. It is commonly used by police to check the speed of moving vehicles while conducting traffic enforcement , and in professional sports to measure speeds such as those of baseball pitches , [ 1 ] tennis serves , and ...

  6. Traffic reporting - Wikipedia

    en.wikipedia.org/wiki/Traffic_reporting

    By calculating the speed of users along a stretch of road, Google is able to generate a live traffic map. [1] Its subsidiary, Waze , also allows users to report directly via a smartphone app. TomTom Traffic uses crowd-sourced data from mobile phone users, along with data from traditional sources such as induction loops and traffic cameras.

  7. Geopositioning - Wikipedia

    en.wikipedia.org/wiki/Geopositioning

    Geopositioning yields a set of geographic coordinates (such as latitude and longitude) in a given map datum. Geographic positions may also be expressed indirectly, as a distance in linear referencing or as a bearing and range from a known landmark. In turn, positions can determine a meaningful location, such as a street address.

  8. Chip log - Wikipedia

    en.wikipedia.org/wiki/Chip_log

    Use of a log did not give an exact speed measure. The sailor had to incorporate a number of considerations: The amount of following sea; The effect of currents; Stretch of the line; Inaccuracy in the time measurement—because ambient temperature, humidity, and sea state affected the sandglass

  9. International roughness index - Wikipedia

    en.wikipedia.org/wiki/International_roughness_index

    The measurement of IRI is required for data provided to the United States Federal Highway Administration, [1] [9] and is covered in several standards from ASTM International: ASTM E1926 - 08, [10] ASTM E1364 - 95(2005), [11] and others. IRI is also used to evaluate new pavement construction, to determine penalties or bonus payments based on ...

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