The Idris Advantage

Technical Sheet No.6

Tolling
Counts and classifies to accuracies required by toll agencies
Optional trigger for video enforcement;
Optional AVI tag correlation for express lanes;
Suitable for all lane types including multi-lane open road tolling (ORT);
Works in pre and post class position, relative to payment point;
Available as a boxed or embedded product (software runs on client lane controller).

Shadow Tolling - Design, Build, Finance & Operate (DBFO)
Very accurate vehicle length measurement;
Meets UK DoT DBFO 1999 specification;
Applicable where there is no culture of conventional tolling.

Data Collection/Census Gathering
Classifies according to profile, number & make up of axles;
Uses loops only;
Works in all traffic and weather conditions;
US FHWA 15 classes as standard;
On screen per vehicle records (pvr), reduced format pvr for video verification.

Intelligent Vehicle Detection
Based on inductive loop profile;
Used for bus priority, with no 'in vehicle' technology

Incident Detection
Detects single stopped vehicle in low traffic volumes;
Provides highly accurate vehicle detection system;
Uses rapid analysis of inductive vehicle profile from loops.

The Idris® Advantage

Feature	Benefit
Superior Accuracy	Improved data
Counts accurately	Volume
Classifies accurately	Accurately separates in stationary traffic
Measures accurately	Speed & Length
Loop based	Mechanically reliable / No weather limitations
Single sensor technology	Less infrastructure / Lower cost
Single or multilane system	Flexibility
High speed communications	Convenience / Reliability
Detects axles from profile	Discriminates raised axles
Pinpoints vehicle position	Identifies lane straddling
Dynamic signal processing	Not reliant on templates / matching
Works in all traffic conditions	Continues to work in congestion
Flexible class tree	Customised class tree

Idris - Technology you can count on!

Better than 99.99% count accuracy in free flow traffic
Better than 99.9% count accuracy in congestion
Better than 99.8% axle class accuracy in express lane tolling
Trigger for enforcement camera, +/- 30cms (1 foot) from nominated trigger point.

Idris is a precision instrument

The Idris Technology is protected by one or more of the following patents:
EP0879457, USA 6345228, 6483443 and 6337640
Registered Patents also include but not limited to European Countries, Brazil, Mexico, Canada & Australia.
Idris® is a registered trademark of Diamond Consulting Services Ltd.

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