Scan car

Haarlem city council

To carry out parking controls, the municipality uses scan cars. The cameras on the scan car use an image recognition algorithm to 1) recognise license plates and 2) check in the parking rights database whether the vehicle is allowed to park there.

Last change on 12th of July 2024, at 9:15 (CET) | Publication Standard 1.0

• Publication category: Impactful algorithms
• Impact assessment: DPIA
• Status: In use

General information

Theme

Traffic

Begin date

2021-04

Contact information

[e-mail]

Responsible use

Goal and impact

The purpose of the parking scan car is enforcement for fiscal ('paid') parking (after-tax (nha) parking tax).

For the processing of personal data, as part of the implementation and enforcement of digital license plate parking, strictly necessary information is collected which aims to enable the following:

(a) the control of parking tax payments;

b) the levying and collection of parking tax (including after-tax assessments);

Considerations

Before introduction of the scan car, every suspicious vehicle in enforcement required individual follow-up by a parking inspector/BOA. With this method, enforcement is laborious and this comes at the expense of enforcement pressure. With the next step in digital enforcement, automatic imposition using a deskforce, a major efficiency gain is made and enforcement pressure can increase significantly. In this way, Haarlem can be successful in achieving its objectives in terms of liveability and (traffic) safety.

Human intervention

After linking the scanned license plate number by the algorithm to the Parking Rights Database, it appears whether or not there is a valid parking right. If a vehicle is found not to have a valid parking right, another assessment by human intervention takes place.

Risk management

Disruption in the chain can lead to an incorrect query/assessment of a license plate, a human check is included in the process to reduce/prevent those errors.

Legal basis

The Municipalities Act states that the municipal council may enact regulations on the levy and collection of parking taxes. These are laid down in the current ordinance on the levy and collection of parking taxes. This tax ordinance indicates that taxes must be paid for the use of public space and where taxes must be paid.

Links to legal bases

Artikelen 156, eerste en tweede lid, aanhef en onderdeel h, en artikel 225 van de Gemeentewet en de Verordening op de heffing en invordering van parkeerbelastingen 2024: https://wetten.overheid.nl/jci1.3:c:BWBR0005416&titeldeel=III&hoofdstuk=IX&artikel=156&z=2024-01-31&g=2024-01-31

Impact assessment

Data Protection Impact Assessment (DPIA)

Operations

Data

Registration number, parking right(NPR), parking box(map.haarlem.nl)

Technical design

The scan car scans a license plate, the license plate is queried in the parking rights database(NPR), if rights are found the registration is deleted, if no rights are found the photos taken, the location data, time, date and vehicle data (RDW) are linked to the license plate and presented as 1 registration in the deskforce (Citycontrol) where the registration is assessed by an enforcer, after assessment the enforcer can impose an after charge or a warning or reject the registration in case of inaccuracies.

External provider

Sigmax/ ACI SCANACAR