Are you looking for ways to optimize the design and installation of equipment at your weigh station site(s) without making a significant investment? Vehicle Waveform Identification (VWI) is a game-changing technology which allows Commercial Vehicle Enforcement (CVE) agencies to reduce the required Weigh in Motion (WIM) equipment on both the mainline and inspection station ramps. When incorporated during the planning and design phase of your project, VWI eliminates the need for redundant WIMs in order to decrease the overall system installation and maintenance costs, all while improving the accuracy and efficacy of your vehicle screening program.

How does this game-changing technology work?

In short, VWI identifies passing vehicles using their unique magnetic signatures, helping CVE officers accurately track and sort commercial vehicles for different enforcement actions as they exit the highway and move through the inspection site.

VWI provides officers the confidence they need to accurately sort, track and tag commercial vehicles. That’s because even identical trucks and trailers have unique magnetic signatures which can be accurately linked to each vehicle’s corresponding enforcement data. VWI can also match sensor readings or images of those vehicles from standard devices, and other weigh and inspection stations, with a more than 96 percent accuracy.

Ultimately, the technology addresses a prevailing problem in the industry: Although standard devices (such as WIMs, overhead cameras, license readers, and thermal imaging) may be deployed at different locations, data from these systems can’t be accurately assigned to individual trucks unless they remain in the same order. But as CVE officers know, trucks do not move predictably, often switching lanes or passing other vehicles after driving over roadway sensors.

With its game-changing vehicle tracking and matching technology, which is independent of vehicle location or speed, VWI solves this industry problem while offering a range of other applications to your CVE program.

I’m looking to grow my CVE program – what are the possible applications of VWI?

  • Vehicle Tracking & Matching – Given the high volume of traffic that passes by inspection stations, CVE officers need automated vehicle tracking to help identify specific trucks efficiently in order to prioritize and streamline their enforcement efforts.
  • Travel time estimation – VWI automates the estimation of travel times for the corridor or station, as well as Border Wait Time (BWT) estimation and reporting.
  • Weigh-In-Motion (WIM) Auto-Calibration – VWI reliably matches static scale and WIM records to automate the calibration process.
  • Lane Sorting – VWI can relay information to Variable Message Signs (VMS) for lane sorting purposes, allowing CVE to flag and redirect vehicles.

In summary, VWI offers many technological applications at your weigh station sites, while eliminating redundant WIM equipment and reducing maintenance costs.

I’m expanding an existing weigh station site – how does VWI benefit an existing program?

Although VWI offers additional value during the initial weigh station design and planning phase, the technology offers many benefits to existing weigh station sites and CVE programs.

Most notably, VWI offers higher accuracy than conventional classification-based matching systems, and does so with a lower price tag. Second, the tracking technology can be used in all weather conditions and, unlike other identification technologies such as cameras, does not rely on lighting levels, weather conditions, or visibility of ID requirements such as license plates. Whether a vehicle is freshly washed in broad daylight, or muddy and driving the night shift, VWI accuracy does not change.

Need more reasons to check out VWI? See below for the top five benefits:

  1. Accuracy

VWI has a much higher accuracy rate than conventional classification-based vehicle matching systems. VWI has a demonstrable and proven record of >96% accuracy in tracking and matching without the need to stop vehicles or place them in a controlled queue environment.

  1. Ease of Integration

The VWI technology doesn’t require any third-party user devices to function. In addition, VWI can integrate with disparate roadside systems such as preclearance, ramp screening and sorting, and in-station sensing.

  1. Minimal Equipment

For law enforcement agencies who are seeking to minimize equipment on their ramps, VWI eliminates the redundant equipment associated with installing additional WIMs and Automated Vehicle Classification (AVC) systems.

  1. Cost Savings

IIS VWI sensors are cost-effective, easy to install, and require minimal maintenance. When compared to conventional systems, VWI technology provides the following cost savings:

  • Eliminates the equipment installation and maintenance costs associated with redundant WIM systems and AVC tracking systems
  • Does not require WIM calibration costs, as VWI allows for static scale record matching and automated calibration verification
  1. Reliable Calibration

VWI reliably matches records for ongoing monitoring and automated calibration, which in turn, optimizes WIM performance. VWI auto-calibrates in a cost-effective manner by matching the existing mainline WIM and static scale records.

Since IIS successfully released the first generation VWI, we have refined our technology to further decrease the installation costs and improve durability, without impacting the technology’s 96%+ accuracy rate. VWI is now shaping the future of weigh station design by eliminating the need for redundant equipment – cutting WIM costs in half while improving the accuracy of CMV screening and monitoring operations.

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