Police pilot system
Police-Pilot-System is an electronic measuring device for determining the average speed of vehicles.
Device description
The current system in 2008 is called ProViDa 2000 . Until 2000 the manufacturer ProVida was a division of Jai A / S in Denmark .
A front and rear camera are attached to a civilian police vehicle. This vehicle maintains a fixed distance to the measured vehicle over a certain distance (note constant distance below ). The events are recorded on video at the push of a button.
The speed is determined by converting the distance impulses per time unit from the ProViDa device into the speed unit kilometers per hour (km / h). Distance pulses are supplied by the calibrated odometer of the measuring vehicle.
The calibrated distance covered in meters is indicated on the top left of the screen and the calibrated time is indicated in the form of frames (1 F = 0.04 s) in the upper right corner. The current speed is displayed at the bottom right. Various measuring methods (with ProViDa there are MAN, Split, Auto1 and Auto2) can be used to measure the speed of the vehicle driving in front of or behind the measuring vehicle. With ProViDa, stationary speed measurement and red light monitoring at traffic lights can also be carried out.
The cameras in modern measuring vehicles are roughly the size of a finger and have a fixed focal length.
A permanent video recording, with the option of an optional sound recording from the vehicle interior, is generally not carried out, in addition to data protection aspects, also for reasons of video tape capacity.
Tolerance deduction
With the ProViDa system, different tolerances are granted for speed measurement: 10% if the distance to the measured vehicle remains the same and 5% if the distance to the measuring vehicle is increased. If there is no subsequent verifiability through the measurement video, a further safety discount of 10% is justified due to the possible misjudgment of the distance by the measurement officials .
The following applies to the tolerance deduction:
The tolerance for errors in the device (including the measuring vehicle) is 5%. With correct measurement / evaluation according to the manufacturer's specifications, additional errors are excluded. The increase to 10% comes from times when measurements were made with other measuring devices, i.e. with only a calibrated speedometer and (estimated) constant distance during the night. The increase from 5 to 10% should cover errors that arise from the fact that the measured vehicle may have been overtaken by a minimal amount and the measuring vehicle therefore drove faster than the measured vehicle.
For speed measurements using ProViDa 2000, a tolerance of 5% is generally deducted. This means: At speeds below 100 km / h, 5 km / h and 5% of the gross speed read off are deducted.
Measurement methods
There are basically two ways of determining the speed of another vehicle:
- -a- Determination of the average speed of the measuring vehicle and transfer to a faster vehicle.
- -b- Direct determination of the speed of the vehicle to be measured.
In -a- is i. d. Usually a follow-up measurement (usually via menu function Auto2, not to be confused with follow-up measurements with a calibrated or uncalibrated speedometer). For a detailed description, see "Constant spacing". With -b- , a measurement route is defined using two freely selectable measurement points on / next to the road and its length and the transit time required by the vehicle to be measured for this route are determined. The speed of this vehicle is calculated directly from both values (menu functions Auto1, MAN, SPLIT). A different distance between the measuring vehicle and the measured vehicle at the beginning and at the end of the measurement (larger or smaller) is irrelevant.
To classify the measurement methods according to the menu functions is actually wrong. So include e.g. For example, the MAN and SPLIT functions allow you to carry out a measurement according to Auto2 at any time during the night drive. With subsequent evaluation of the video recording, all measurement variants can be carried out if the distance between the measuring vehicle and the measured vehicle was not reduced at the end of the measurement, which is documented by video recording. Otherwise the Auto2 variant cannot be used.
Constant distance
With the " follow- up" measurement (above -a- ) with Provida- Modular 2000, in contrast to earlier follow- up measurements with a calibrated speedometer, a constant distance within the measuring section can be dispensed with. The only requirement is the comparison between the distance at the beginning and the end of the measurement. The distance from the measuring vehicle to the measured vehicle must not be smaller at the end of the measurement than at the beginning of the measurement. In many decisions this is called (somewhat misleading) "constant distance".
With Provida 2000 there is no follow-up measurement in the traditional sense. The distance covered by the measuring vehicle and the time required by the measuring vehicle are determined for the entire measuring range and converted into km / h using the route-through-time formula. The only decisive factor is that the distance between the two vehicles at the end of the measurement is not less than at the start of the measurement. The distance behavior within the measuring section is completely irrelevant. An additional tolerance (besides the 5%) for further errors is therefore not required.
Competitor
The VASCAR (Video Average Speed Computer And Recorder) system is also used in Hessen .
Effects of the judgment of March 27, 2007
In a ruling by the Lüdinghausen district court, the court found that the Provida system used in this case did not meet the requirements for correct calibration. The measuring device of the police vehicle was calibrated. However, the responsible calibration office is currently not re-calibrating such vehicles because a technical change has taken place for which there is no type approval from the Physikalisch-Technische Bundesanstalt (PTB). Because of the disproportionate effort compared to the expected fine, the court dropped the proceedings.
Due to a non-design-approved system component ( CAN bus ), numerous ProViDa measuring devices used by the police across Germany could be incorrectly calibrated. As a result, the Interior Ministry of North Rhine-Westphalia has now decommissioned 13 of the 38 Provida vehicles.
In the meantime, however, the CAN-BUS manufactured by BMW has been approved by the PTB and is therefore no longer a reason to discontinue the procedure.
Distance measurements with ProViDa 2000 Modular
The OLG Hamm has found that ProVida 2000 Modular does not represent a standardized measuring method for distance measurements.
literature
- Löhle / Beck, Sources of Error in Police Measurement Procedures , 9th edition, Bonn 2008, Anwalt-Verlag, ISBN 3-8240-0983-8 .
- Burhoff / Neidel / Grün, measurements in road traffic (with CD-Rom), 2nd edition, Münster 2010, ZAP-Verlag (LexisNexis), ISBN 978-3-89655-519-9 . (Title of the 1st edition still: speed and distance measurements in road traffic )
- Becker, Speeding in Road Traffic , 7th edition, 2010, Verlag Luchterhand, ISBN 978-3-472-07832-6 .
- Joachim Schrey / Thomas Walter Haug, The scope of judicial control of decisions about speed violations , NJW 40/2010, 2917th
Web links
Individual evidence
- ↑ http://www.jai.com/EN/About/JaiInBrief/Pages/History.aspx ( Memento from December 11, 2009 in the Internet Archive )
- ↑ Duisburg District Court , judgment of October 1, 2010, Az. 36 OWi-313 Js 1187 / 10-384 / 10, full text ( memento of the original from July 18, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. .
- ^ Hesse police: VASCAR
- ↑ Lüdinghausen Local Court , judgment of March 27, 2007, Az. 10 Owi 89 Js 18 / 07-5 / 07 full text .
- ↑ Journal Verkehrsrecht aktuell , issue 6/2007, p. 106.
- ↑ OLG Hamm, judgment of February 26, 2009, Az. 3 Ss OWi 871/08, full text .
