SafeZone – the face of modern speed enforcement
Through cities, towns, villages, on urban and interurban roads, and past schools, SafeZone is a Home Office Type-Approved average speed enforcement system. It is based on industry-leading automatic license plate recognition technology. SafeZone provides effective speed enforcement in zones that extend between pairs of cameras that are mounted at the side of either single or dual-lane highways or on cantilever poles or bridges over multilane roads.
Reducing speeds, improving safetySafeZone’s advanced technology and ease of deployment makes it cost-effective for residential, city, rural, or motorway enforcement. Siemens’ fully qualified team of highway and system design engineers will help you evaluate suitable locations and design all aspects of your SafeZone deployment.
How does SafeZone work?
- Each camera in the enforced network reads the license plate of every vehicle passing through its field of view
- It sends an encrypted plate read including time and date stamp to the Evidence Retrieval and Control Unit (ERCU) back office
- At the back-office, the plates are matched from two or more cameras
- The time difference between the matched reads is used to determine the average speed of the vehicle between cameras
- Evidential records are created for vehicles that exceed the set speed threshold
- These encrypted records are transferred from the ERCU to an Offense Viewing and Decision System (OVDS) for decrypting and viewing, before being passed on to third-party penalty notice management systems
- Powerful data filtering and sorting strategies in the OVDS allows for effective intelligence-led enforcement
- In addition, a data analysis function allows comprehensive reporting of violation statistics
The SafeZone solution uses the state of the art ANPR camera from Siemens, Sicore II. The Sicore II ANPR camera incorporates the following innovations which firmly place it as an industry-leading camera;
- Three lane camera operation allows for huge coverage from one camera, or excellent redundancy with overlapping camera geometries.
- Latest HD camera sensors designed specifically for the traffic environment delivering superb image quality day and night.
- Powerfully lensed 850nm Infrared LEDs – focussed lensing means that LEDs can be run at a lower power while still illuminating 12m of road at a distance of up to 30m.
- A real-time Sync CPU provides fast, efficient operation of camera exposure, IR Flash as well as the digital I/O. This gives the precision needed for any application.
- Onboard GPS capability means that camera location and an accurate timestamp are embedded into the design.
- Onboard 3G/4G and Wi-Fi as well as built in Ethernet port give a broad set of options for communication in any situation.
- Consistent performance on front and rear plates and no practical limit to the number of plates which can be simultaneously captured. Plates can be captured anywhere in the field of view, and lane discrimination is supported.
- Wide temperature range -20°C to +60°C.
- Tested up to 300kph.
The ERCU collects passage data, checks for speed violations between defined camera pairs, and produces encrypted evidential records when a speed violation is detected.
Various methods of deployment are supported including either local installation or a hosted managed service by Siemens.
Completely scalable from a single link, to a complex system with over 100 cameras.
The ERCU provides robust and secure evidential processing.
The OVDS is used for viewing, verifying, and processing offense data with interfaces to all major deployed penalty notice processing systems.
Violation processing within OVDS is a quick and straightforward process, starting with importing the violation records from the WORM media. Once imported, a grid view will display all the violations. Clicking on a specific violation will display details including date/time, speeds, journey time, base line distance etc. Images are also presented allowing the operator to easily confirm the ANPR result.
Violation processing also includes the ability for the operator to annotate, approve or reject a violation. Once approved, a violation can easily and immediately be exported to the penalty.
An audit log for all violations is kept. The audit log will indicate the user making the change and the time/date and time of the change.
SafeZone. Community benefits
- Smooths traffic flow and reduces congestion
- Reduces noise and environmental pollution levels
- Limits visual intrusion on existing street scene
- Proven high driver compliance with speed limits
- Provides educational platform for schools
- High level of public acceptance compared with traditional spot-speed enforcement