Idris at World Congress 2008
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Location: Dover Toll Plaza
Client: Delaware Department of Transportation (DelDoT)
Application: Idris AT600, SmartToll Application
ITP:  Peek Traffic Corporation
Background: In 1998, the Delaware Department of Toll Roads was looking for a classification system that could
function at high accuracy levels in express ETC lanes. The first site of this type was installed at
Biddles Corner, north of Dover on the SR1
(State Road 1) toll road. Following on from the
success of this project the Dover Plaza was implemented in spring 2004. The installation consisted
of two express, free flow running lanes and 2 shoulders complete with AVI & violation
functionalities.
Project Detail: SR1
is not only a major thoroughfare north and south through the state carrying considerable
commercial traffic, but it is also located in a major agricultural area. Accordingly, many types of
trailers are utilised, including goosenecks, and at peak times congestion does occur. Further,
Delaware experiences a full scope of weather patterns ranging from snow and ice to blowing rain
and fog. Any tolling solution considered needed to take into account and handle all these
factors.
Having already been proven at Biddles Corner, Idris technology was once again the technology
of choice. The Dover Plaza installation was a substantial upgrade that required the selected Idris
technology providers, Peek Traffic Corporation, to work with the system integrators
implementing Peeks SmartToll hardware.
Challenges: The main challenge was to provide a system that could accurately classify, catch violators and
function in all traffic flows. Peeks experience working with Idris and their SmartToll application
made such a system possible.
One of the first major requirements for Peek on the project was to guarantee a good loop
installation for the AVC technology. The loop array is a major contributor to the accuracy of
Idris, as a precision instrument, the more meticulous the installation, the higher the accuracy
levels achievable. Thus, when the opportunity arose for the team to determine the most suitable
loop array locations in the newly laid concrete they ensured there was no crossing of the
expansion joints thereby providing a better detection environment.
Outcome: The accuracy levels achieved from the outset have been in the region of 99.5% or better.
Conclusion: Due to the team work, effort of those involved with the Dover Plaza project and the attention to
detail, the installation was straight forward, successful and generated few technical issues.
Idris® is a registered trade mark of Diamond Consulting Services Ltd.
The Idris Technology is protected by one or more of the following patents: EP0879457, USA 6345228, 6337640 and 6483443.
Patent Applications Pending in other Countries
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