speed measurement ProVida 2000
speed limit on highways is not uncommon. To determine the speeding, the police often resorts back to civilian emergency vehicles, tracking the person concerned.
The speed measuring system ProVida 2000, while frequently used in emergency vehicles of the police to measure speed. The system can determine the speed from a standing or even moving from the emergency vehicle. The evidence here is usually from video recordings (in this context: the problem of permanent video surveillance).
is the determination of the rate by the distance pulses per unit time of the measuring system in the velocity unit km / h are equivalent.
On the attached picture (screen attached) is left above the calibrated distance in meters. Top right, the time is calibrated in the form of so-called frames, where 1 frame is a time of 0.04 seconds. Bottom right shows the current speed
The visible on the screen cutout value VDM (video distance meter) allows taking into account the height of the vehicle close to the distance change. This in turn is needed for a correct speed measurement. The actual vehicle height is made here manually or from a database.
In our specific case used in accordance with the Addendum to ViDistA evaluation report from a database, a reference size of KBA 17 703 mm (!) for the affected vehicle. This value should the vehicle height of the VW Touareg represent our clients. The fact that the Touareg is not a height of 17 feet reached the officials would evaluate the need to be noticed almost immediately. The incorrect altitude here had a direct impact on the measured speed. Expert reports from the police point of view was thus calculated as gross errors assessed.
Here, again, that the velocity measurements do not always take place properly. As such, any measurement are critically
Tel: 030 / 226 35 71 13
lawyer Thomas Brunow is a partner of the firm Prof. Dr. string & Partner Berlin
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