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Data Collection Solutions A presentation by
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Agenda Experience and Qualifications Video Pavement Management Geometrics and Measurement
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ARAN Capability Summary Roughness Longitudinal Profile Faulting Texture Rutting Cross Slope Transverse Profile WiseCrax VisiData Curve and Grade Differential GPS Right-of-Way - High Resolution Digital Video Strobed Pavement Video Surveyor POS/LV Laserlux
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ARAN-Automatic Road Analyzer Proven Multi-function Highway speeds Single Pass Modular
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Roadware Technology History Founded in 1969 Technology Leader – 1980 ARAN proto-type – 1984 1st production ARAN – 1993 3rd generation ARAN – 1994 Surveyor – 1994 WiseCrax - Automated Distress – 1996 POS/LV Inertial Measurement Unit – 1997 WiseCrax/NT - 2nd generation – 1998 VisiData - Data Visualization Tool – 1999 Ultra Hi-Res Digital Video Modular Design Benefit: Protects Investment from Obsolescence
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Roadware Experience 100+ employees – 85% technical staff Over 70 ARANs in 20 Countries – ARAN used by 25 States & FHWA Roadware operates 8 ARANs – Over 100,000 miles under contract Benefit: Experienced Qualified Support
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Recent Deliveries CY1996CY1997CY1998 Chongqing, ChinaMOCT, South KoreaMaine DOT Autostrade, ItalyMichigan DOT North Carolina DOT DWW, Netherlands(Laserlux)NCU, Taiwan Connecticut DOT* Korea Airport Authority Ministry, Ontario Chongdu, China Connecticut DOT* City of Tucson, AZ WDM, Netherlands Precision Scan, NC (3 - Laserlux) BKS, South Africa *Major upgrade to digital video
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Recent Deliveries CY1999CY2000CY2001 Flemish Ministry Sineco, ItalyFHWA Hawaii DOTVermont AOT Maryland SHA Roadware DS(2)Auburn UniversityMTO Roadware DS KHC (Korea) Arkansas DOT
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Recent Service Contracts Vermont3,100 mi. 2000 Florida22,000 mi 1999-00 Pennsylvania47,000 mi1997-02, Iowa23,000 mi1996-02 Alabama 28,300 mi 1996-97, 99-01 Caltrans 23,300 mi 1997 Louisiana 19,200 mi 1994-98, 00-01 Colorado 10,800 mi 1990-98 Oklahoma 6,500 mi 1994-98 West Virginia 3,500 mi 1998, 00
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Roadware Technology ARAN WiseCrax Surveyor POS/LV Digital Video VisiData Laserlux
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Video Analog Video – Continuous or Sampled Multiple camera configurations – Panoramic – Side view – Guide rail – Rear view Digital Video –High Resolution –Ultra High Resolution
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Right-of-Way Video High Resolution Digital - Full-frame Continuous or Sampled Multiple camera configurations – Panoramic – Side view – Guide rail – Rear view
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Vehicle Configurations Window Van Cube Van
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Full Frame vs. Interlaced
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Panoramic - 3 Camera
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Panoramic with Pavement
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Target 1300 x 1030 pixels
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Mega Pixel Resolution 1300x1030
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High Resolution 640x480
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Mega Pixel Camera
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Videotape to Digital +Acceptable Quality +Economical +Continuous 30 fps => 3 foot interval -3 to 6 hours time to digitize 60 miles -Hundreds of tapes to archive -Limited resolution
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Direct to Digital +Not limited to 640 x 480 pixels +No additional time to convert +Sharper images -High Storage Requirements -Longer intervals between images
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Videotape to Digital
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Direct to Digital
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Direct to Digital vs. Videotape to Digital
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Conclusion Direct to digital is clearly superior IF You can afford the storage
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Digital Storage Requirements High Res 640 x 480 = 900 Kbytes/image Mega Pixel 1300 x 1030 = 4 Mbytes/image
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Image Compression High Res 640 x 480 = 900 Kbytes/image @ 20:1 = 45 KB Mega Pixel 1300 x 1030 = 4 Mbytes/image @ 20:1 = 200 KB @ 40:1 = 100 KB
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High Res Uncompressed vs. Compressed
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Size Comparison
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Mega Pixel Uncompressed vs. Compressed
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Storage Systems Analog Video Tape Tape = 100 miles 10,000 miles = 100 tapes Disc Removable = 20 GB = 4,000 miles DVD = 4.7GB = 940 miles CD ROM = 650 MB = 130 miles Digital Linear Tape DLT = 70 GB = 14,000 miles
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Conclusions Compression rates have little effect on quality at 20:1 to 40:1 Major advantage of high resolution is the ability to zoom in on details Storage is feasible Digital is superior
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VisiData-Visual Data Presentation Roadway data at your finger tips – Video – Hierarchical Tables – Charts Drive the network; review data concurrently Easy to use desktop application
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Right-of-Way View of selected section Tool bar with play buttons to “drive” the road Data Grids to show tabular information such as location and numeric values Graphical charts display data to identify specific sections with out-of-limit values SQL Query capability to include or exclude data within specified limits such as to display roughness exceeding 200 in/mi
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Surveyor-Video Measurements Sign Inventory Asset Management Video based Ad hoc measurements Bulk inventory 2m XY position accuracy 12 cm offset/height/width accuracy
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Surveyor - Proven Technology Major Projects Rhode Island – 2,800 mi & 60,000 signs Pennsylvania – 5,000 mi in ‘97 – 45,000 mi in ‘98Customers Arkansas Maryland Massachusetts Rhode Island DWW, Netherlands Siproma, Italy
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ARAN Pavement Management Systems Roughness Longitudinal Profile Faulting Texture Rutting Cross Slope Transverse Profile Curve and Grade Differential GPS Right-of-Way - High Resolution Digital Video Strobed Pavement Video Features Inventory
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Roughness - Laser SDP™ Laser and Accelerometer Calculates IRI and RN –ASTM Class I –HPMS Class II –Quarter car and half car Traffic Speeds –20 km/h to 120 km/h
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Speed Correlation Tests
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Rut Depth - Smart Rutbar Smart Rutbar –37 sensor –10 cm spacing –generates accurate profile 3 and 5 laser system available
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37 Sensor Rutbar
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Rutbar Comparisons
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Cross Slope & Transverse Profile
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Texture Measures Macro Texture –0.5 to 50 mm Reports Mean Profile Depth –ASTM E1845-96 compliant Uses 64 kHz laser
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Faulting - JCP Uses Roughness Laser Measures Faults in one or both wheelpaths Averages 30 cm either side Reports to 3 mm inch Classifies into 3 or 4 bins
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WiseCrax Image Capture Crack detection Distress Classification
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Image Capture Pavement Video – Dual full frame cameras – S-VHS videotape Synchronized Strobe lighting – 6 x Sunlight – Eliminates or reduces shadows
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WiseCrax Image Capture Crack detection Distress Classification
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Crack Detection Friendly Interface Artificial Intelligence
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Crack Detection Simple setup – set parameters – test process – review results Batch process Interactively review
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Crack Detection
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WiseCrax Image Capture Crack detection Distress Classification
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Distress Classification Accurate Repeatable Cost Effective Customize to customer – SHRP – AASHTO
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Distress Classification
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Color coded to indicate type of distress
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WiseCrax Cracks as small as 2-3mm Up to 3 severity levels Supported Distresses – Fatigue – Longitudinal (Load & Non-Load) – Transverse – Block – Corner
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WiseCrax - Proven Technology Major Projects Pennsylvania – 25,000 mi in ‘97 – 26,000 mi in ‘98 Iowa – 12,000km in ‘96 – 13,500km in ‘97 West Virginia – 2,500 mi in ‘98Customers Connecticut Maryland New Jersey FHWA Autostrade, Italy DWW, Netherlands South Korea
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POS/LV Inertial Measurement Unit –FOG - Fiber Optic Gyro Integrates with DMI and GPS –Blended navigation solution High Accuracy –5 cm per kilometer
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Differential GPS Base Station or Kinetic Service –US Coast Guard –Omnistar 2 meter accuracy Gyro fill in for loss of GPS lock
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Laserlux® Pavement Marking Retroreflectivity Laser Scanning –Single or double lines –Skip lines - left or right –Stripe Width Video overlay option
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Overlay Video on Data
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Laserlux
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Future Developments Pavement Surface Reprofiling Bridge Height Sign Retroreflectivity Scanning Laser – transverse profile – edge drop off DVD - Digital Versatile Disk
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Roadware Solutions Single Source Customer Driven Solutions – Products – Applications – Turnkey Data Services – Strategic relationships The Source for Infrastructure Information
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Summary Infrastructure data collection solutions – Pavement management – Right-of-way Asset Management Partnering to achieve the best solution Advanced, proven technologies Experience Commitment
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Questions?
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