Vehicle Classification System
Intelligent Vehicle Identification System (IVIS)
Design Benefits
- All digital, axle-based classification method; no moving parts or maintenance burden – Outperforms treadles or light curtains that require maintenance and are subject to inaccuracies
- Easy install in new or existing roadways using proven specialized pavement cutting equipment and methods – Minimizes installation time and costs
- Non-intrusive IVIS sensors imbedded in the road surface that create invisible fields of energy of varying heights and intensities – Accurately and consistently classify vehicles
- Multiple sets of sensors; increases data confidence – Provides pre- and post-classification in a single lane environment
- A single technology applied in all roadways, both single lane and Open Road Tolling – Eliminate the need to purchase multiple systems to fit varying lane configurations
- Sensors can trigger the capturing of VES and DVAS still images and track vehicle location – Improves the “region-of-interest” (ROI) capture of license plate as well as images to support transaction-level auditing
A significant advantage of the IVIS design comes from the static in-pavement sensors and computerized signal processing technology that accurately classifies, measures, and monitors vehicles. There is no need electro-mechanical treadles, light curtains, and overhead laser sensors and their unique constraints and maintenance problems.
The reliability of UTS’s well-designed solution, focused especially on the tolling industry, is unrivalled by other systems. The static in-pavement sensors operate for the life of the pavement. Recalibrations are infrequent and are handled automatically by the system; periodic electrical and electronics maintenance ensure long-lived, accurate and reliable performance. Installation of the IVIS sensors involves cutting narrow slots in the toll lane pavement and installing the UTS pre-manufactured sensors using a proprietary adhesive mix material. Installation and setup is very fast; lanes can be retrofitted overnight.
The success of the IVIS system has been proven in the heat and humidity of Miami, Florida, in the freezing cold of Denver, Colorado, and in a variety of harsh environments in Austin, Texas, with equally consistent performance. Numerous consultants have documented 100% classification accuracy in acceptance testing. Internal tests at UTS have yielded classification accuracies of better than 99.97% in over 21,700,000 vehicle passes during commercial operation.
IVIS is protected under the following patents: US 6,864,804, US 7,015,827, US 7,071,840, US 5,614,894, CA 2 139 577, and EP 0 649 553B1 and has additional patents pending. UTS IVIS is truly the state-of-the-art in vehicle classification technology today.
