South American Applications of Strain Gauge Based WIM Illustration of WIM Weighing Technology & Sites Today’s Agenda Brief Company Introduction Product Overview: Fixed Weigh-In-Motion Strain Gauge Sensor Site Performance Examples

INTERCOMP Designs, Tests & Manufactures Products & Solutions Manufacturing advanced weighing technology . . . by any measure. Designs, Tests & Manufactures Products & Solutions Intercomp Worldwide Headquarters Medina, MN USA Installed Systems in Over 80 Countries Worldwide Leader in Scales for Transportation Industry ISO 9001:2008 Certifed Worldwide Offices US, UK & Chile State-of-the-art manufacturing facility 90,000sq/ft Building with a Fully Staffed Engineering Team

Industries We Serve Portable & Fixed Weighing Solutions for Transport Wheel/Axle Scales Traffic & Enforcement Scales Motorsports/F1 Scales Agriculture Scales Crane & Material Handling Scales Aviation Scales Military Scales Mining Scales 3

Weighbridges TECHNOlogy Most accurate means of weighing heavy vehicles Why Weighbridges Use Strain Gauge Transducers Strain gauge transducers create an electrical signal whose magnitude is directly proportional to the force being measured. Rapid response Negate side loads Compensate for temperature Hermetically Sealed Easily Calibrated Cost Effective

Accurate In-Ground Weigh-In-Motion Development continuum of strain gauge technology Static Truck Scales Weigh-In-Motion Axle Scales Weigh-In-Motion Strip Sensors

PRODUCT ON FOCUS: Strip SenSOR SCALE In-Ground Strip Sensors Same technology as traditional WIM scales Load Cell / Strain Gauge Technology. No drainage required, simple slot, & a few hours to install. low to high volume roads Any speeds Provides redundancy over traditional weighbridges.

Product in FOCUS: Strip SENSOR SCALE Why? Easy to Install No maintenance Annual Calibration due to stable readings No temperature compensation No sweet spot – not wheel position sensitive Long in service life time Signal is drawn directly from Strip – no need for additional equipment Designed to ignore side loads Typical data: - Axle Weights Left/Right Wheel Weights Axle Spacing Gross Vehicle Weight Vehicle Speed (Customizable units kg/lb, MPH/KmH, classification, etc)

Strip Sensor Installation Minimally Invasive Quick Installation Approximately 8 hours. Minimal Cutting No excavating or pouring of concrete No Drains Required ½ lane widths – any size

WIM Strip Sensor Configurations Typical WIM Site 2-8 sensors 2-4 Rows Spacing modified for Speed Increase sensors, increases accuracy (more data points) Factors: Road surface, Installation quality, Vehicle Suspension

Applications v Configurations Data Collection Pre-Selection Direct Enforcement Tolls & Gates

Example of Two Lane Site Configuration In-Road: WIM Strip Sensors Loop Additional equipment: WIMLogix or other CPU Camera(s) triggered from loop Camera output to CPU OR Software Other equipment can interface with I/O of CPUs

Data Collection: Example Data from Sites Seven 2-Sensor sites with Camera 30 to 38 runs per data set Class 6 vehicle Static Weight 14200 – 16700 kg 34-58 kmh Samples over 4 days 15oC to 25oC

Site 1: Mar Del Plata 4 Sensor 2 Row Layout Single Vehicle Testing 38 Runs in Data Set Free flowing 45kmh 1 Day Testing approx. 15oC Desired accuracy 10% Results 16,690 KG 3.65% GVW Error (95% CI) 5.23% Axle error (95% CI) 16,066 kg Min 17,264 kg Max 4 Sensor 2 Row Layout

Site 2: Mar Del Plata II 4 Sensor 2 Row Layout Single Vehicle Testing 30 Runs in Data Set Free flowing – 50kmh 1 Day Testing approx. 15oC Desired accuracy 10% Results 16,690 KG 5.16% GVW Error (95% CI) 5.81% Axle error (95% CI) 15,881 kg Min 17,432 kg Max 4 Sensor 2 Row Layout

Site 3: NEO 4 Sensor 2 Row Layout Single Vehicle Testing 33 Runs in Data Set Free flowing -40kmh 1 Day Testing approx. 20oC Desired accuracy 10% Results 16,690 KG 4.16% GVW Error (95% CI) 5.68% Axle error (95% CI) 16,069 kg Min 17,281 kg Max 4 Sensor 2 Row Layout

Site 4: NEO II 4 Sensor 2 Row Layout Single Vehicle Testing 31 Runs in Data Set Free flowing – 50kmh 1 Day Testing approx. 20oC Desired accuracy 10% Results 16,690 KG 4.32% GVW Error (95% CI) 6.61% Axle error (95% CI) 16,018 kg Min 17,691 kg Max 4 Sensor 2 Row Layout

Site 5: SAN san pedro 2 Sensor 1 Row Layout Single Vehicle Testing 31 Runs in Data Set Free flowing – 40kmh 1 Day Testing approx. 25oC Desired accuracy 10% Results 14,200 KG 7.63% GVW Error (95% CI) 10.30% Axle error (95% CI) 12, 965 kg Min 15,116 kg Max 2 Sensor 1 Row Layout

Site 6: San PEDRO II 2 Sensor 1 Row Layout Single Vehicle Testing 32 Runs in Data Set Free flowing -40kmh 1 Day Testing approx. 25oC Desired accuracy 10% Results 14,200 KG 5.13% GVW Error (95% CI) 8.68% Axle error (95% CI) 13,361 kg Min 14,859 kg Max 2 Sensor 1 Row Layout

Site 7: Camp 1 4 Sensor 2 Row Layout Single Vehicle Testing 30 Runs in Data Set Free flowing – 45kmh 1 Day Testing approx. 20oC Desired accuracy 10% Results 16,700 KG 4.22% GVW Error (95% CI) 6.59% Axle error (95% CI) 16,066 kg Min 17,264 kg Max 4 Sensor 2 Row Layout

Seven Site Performance Summary Static Weight Samples GVW (95% CI) Axle GVW Min GVW Max MDP 1 16690 kg 38 3.65% 5.23% -5.91% 7.64% MDP 2 30 5.16% 5.81% -6.95% 5.53% Neo 1 33 4.16% 5.68% -6.66% 9.77% Neo 2 31 4.32% 6.61% -8.73% 9.40% SanP 1 14200 kg 7.63% 10.30% -15.08% 11.37% SanP 2 32 5.13% 8.68% -15.57% 10.54% Camp 1 16700 kg 4.22% 6.59% -8.46% 9.17% COST 323 Accuracy Criteria (excerpt) Criteria Domain A (5) B+ (7) B (10) Gross GVW > 3.5t 5 7 10 Single Axle Axle Load > 1t 8 11 15 All sites B(10) 6 of 7 B+ (7) 4 of 7 A (5)

Conclusion All sites exceeded the customers expectations in terms of: Performance Reliabilty Ease of Use Accessability of Data

Clint BOWER Tel: + 44 7787 542226 / +44 118 932 0578 Toll Free (US): 800-328-3336 Worldwide: +1 763-476-2531 cbower@intercompcompany.com www.intercompcompany.com/its-enforcement-scales