Advanced Materials and Technology Manual

Advanced Materials and Technology Manual

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL i Table of Contents 1.0 General... 1 1.1 Introduction... 1 1.2 Overview of the Advanced Materials and Technology Unit... 1 2.0 Geo-Spatial Technologies... 1 2.1 Definitions... 1 2.2 Acronyms and Abbreviations... 2 2.3 Project Selection Decision Tree... 3 3.0 Intelligent Compaction (IC) Method... 3 3.1 Definitions... 3 3.2 Acronyms and Abbreviations... 6 3.3 Check List for 2016 Quality Management (QM) Special IC Method... 6 3.4 Typical Process for IC Data Download, Export and Mapping... 8 3.5 Training of Contractor s Personnel... 9 3.6 Approval of Instrumented Rollers for Use (Equipment Demonstration)... 11 3.7 Design Files... 13 4.0 Paver Mounted Infrared Temperature (PMIT) System for Thermal Profiles... 19 4.1 Definitions... 19 4.2 Acronyms and Abbreviations... 19 4.3 Approval of PMIT Systems for Use... 19 4.4 Field Review of Thermal Profiles by Department... 19 Tables Table 3.1 Check List for 2016 QM Special IC Method... 6 Table 3.2 Training of Contractor Personnel... 9

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL ii Table 3.3 Recommended Training Content for IC Supervisors and Onsite IC Support... 9 Table 3.4 Recommended Training for the Operators of the Instrumented Rollers... 10 Table 3.5 Recommended Approval of Instrumented Rollers for Use... 11 Figures Figure 3.1 Schematic of coverage, Gridded All Passes Data and Gridded Final Coverage Data... 3 Figure 3.2 Schematic of Gridded IC Data... 4 Figure 3.3 Example of Layer Identifications (ID)... 5 Figure 3.4 Schematic of raw data... 6 Figure 3.5 Flow chart of the transfer of IC data from the roller to the mapping software... 8 Figure 3.6 Check list for approval for use of instrumented rollers... 12 Figure 3.7 Snapshot of unassigned geographic coordinate system... 13 Figure 3.8 Snapshot of county coordinate search library... 14 Figure 3.9 Snapshot of assigned geographic coordinate system... 14 Figure 3.10 Snapshot of complex shape / line... 15 Figure 3.11 Snapshot of save document feature... 15 Figure 3.12 Snapshot of alignment file on google earth background... 16

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 1 1.0 General 1.1 Introduction This Manual is prepared to familiarize Engineering Personnel, Contractors and Consultants with the fundamentals, principals and better practices for use of advanced materials and technologies during construction. This Manual specifies specifics addressed to both the Contractor and Engineer, however, the Engineer and Inspector should never adjust or otherwise operate the Contractor s equipment. The Specifications and Plans will govern where the instructions in this manual differ from the Specifications and Plans for a project. 1.2 Overview of the Advanced Materials and Technology Unit The mission of the Advanced Materials and Technology (AMT) Unit is to support the Office of Materials and Road Research, MnDOT Districts, Engineering Services Division, other state agencies and Contractors by providing advanced materials and technology expertise. The AMT unit provides support for the development and implementation of new methods to evaluate paving and grading and base material properties prior to and during construction. This work includes developing an understanding of basic technologies such as those using global navigation satellite systems, thermal imaging, seismic measurements, laser based scanning and equipment control. Such technologies will be refined to achieve construction efficiencies and quality control / quality assurance applications. These applications will result in hardware, software and testing specifications to be implemented on State and Local construction projects. 2.0 Geo-Spatial Technologies 2.1 Definitions 2.1.1 Cloud is a web-based user interface. 2.1.2 Cloud Computing is the use of computing resources (hardware and software) that are delivered as a service over a network to enable near, realtime visualization (maps) and manipulation of geo-spatial data. 2.1.3 Cloud Storage is network storage (typically the internet) where the geo-spatial data is stored in virtualized pools of storage. 2.1.4 Control Points (sometimes referred to as survey markers, monuments, hubs, control markers) are temporary or permanent objects placed to mark key survey points on the earth s surface. These markers are used to indicate elevation and/or horizontal position.

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 2 2.1.5 Coordinate System is a system that uses one or more numbers, or coordinates, to uniquely determine the position of a point or other geometric element on a manifold such as Euclidean space. 2.1.6 Data are measurements recorded by the Instrumented Roller, or information generated/processed from these measurements (e.g., GNSS coordinates, stiffness, temperature, pass count, speed, frequency, amplitude). 2.1.7 Geo-Spatial Data is data collected by instrumentation that uses a Global Positioning System (GPS) and other sensors to measure in-situ conditions during construction efforts. 2.1.8 Site is the Project where the instrumented rollers are required. 2.1.9 Site Analysis is the process where the Contractor determines the number of GPS repeaters needed to cover the entire working length of the Project and to address Project staging of GPS repeaters and base station(s) when used. This process should be completed before or during Site Setup/Calibration. 2.1.10 Site Setup/Calibration is the process of setting up the local base station, repeaters, and GNSS receiver. It also includes determining the coordinate information of each survey marker and storing this information within the IC software. 2.1.11 Veda is a standardized intelligent construction data management (ICDM) software that stores, maps and analyzes IC and associated geospatial data (e.g., thermal profiler data, spot test data). This software can perform standardized data processing, analysis and reporting to provide Project summary results quickly in the field from various IC manufacturers. In particular, the software can provide statistics, histograms, correlations for the IC measurements (e.g., speed, temperature, pass count, ICMV), document coverage area and evaluate the uniformity of compaction as part of the Project quality control operations. 2.2 Acronyms and Abbreviations 2.2.1 D dimensional 2.2.2 DPC daily percent coverage 2.2.3 GNSS global navigation satellite system 2.2.4 GPS global positioning system 2.2.5 ICDM intelligent construction data management 2.2.6 Rover remotely operated video enhanced receiver 2.2.7 RTK real time kinematic 2.2.8 RTRN Real Time Reference Network

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 3 2.2.9 UTC Coordinated Universal Time 2.2.10 UTM Universal Transverse Mercator 2.2.11 Veda intelligent construction data management software 2.3 Project Selection Decision Tree 2.3.1 Thermal Profiling and Intelligent Compaction Methods Thermal profiling and intelligent compaction are recommended for use when the following project/site conditions are met: 2.3.1.1 The technology can be used with the following specifications: Technology Specification Intelligent Compaction (IC) SP 2016 Quality Management 2105, 2106, 2211, 2215, 2331, 2353 2, 2360, 2365 Special 1 Thermal Profiling (TP) SP 2360,2365 2016 Quality Management 1 It is recommended that the top of each layer of 2105, 2106, 2211 and 2215 be Test 2 Rolled per 2111, regardless of whether IC is used. IC is recommended for use on 2353, only when used in conjunction with 2360 (i.e., when IC is already being used with 2360). 2.3.1.2 Lane Miles are about 8 lane miles or more. 2.3.1.3 Cellular Coverage, to allow for automatic transfer of data to the cloud, at least one time per day. 2.3.1.4 For intelligent compaction projects, adequate GNSS coverage through the project limits is required for recording of the real-time, spatial location of equipment. Projects that are at least 90 percent covered by RTRN will be given preference. 2.3.1.5 The required spatial accuracy for the thermal profiling system is ±4 ft in the horizontal direction, and therefore, the requirements outlined in #4 are not required for this technology. 2.3.1.6 It is recommended that both IC and TP are used together on a single project. It is also recommended that if a grading project is using IC, and this project will have an asphalt pavement surface, that this project is also selected to use JC and TP on the asphalt pavement. This would allow for comparison of in-situ stiffness measurements between layers and cost savings in required resources (e.g., site calibration, modified design files, etc.).

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 4 3.0 Intelligent Compaction (IC) Method 3.1 Definitions 3.1.1 Automatic Feedback Control automatically adjusts roller Operating Settings, such as vibration frequency and amplitude, based upon real-time feedback from the drum vibration measurement system. 3.1.2 Coverage is the total area resulting from Roller Passes on a given Lift/Layer (see Figure 3.1). 3.1.3 Cumulative Measurement Pass Count is the Gridded Final Coverage Data for pass count. 3.1.4 Daily Percent Coverage (DPC) is the percent of the required daily compaction area where the minimum required Cumulative Measurement Pass Count is achieved. 3.1.5 Finishing Roller is the final roller used in the compaction process for the given Layer. 3.1.6 Gridded All Passes Data includes all Measurement Passes recorded for a given grid (see Figure 3.1). This data is generally used to build compaction curves for establishment of rolling patterns. Figure 3.1 Schematic of coverage, Gridded All Passes Data and Gridded Final Coverage Data

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 5 3.1.7 Gridded Data is processed from the raw data using meshes. The raw data is duplicated over the meshes for the entire roller drum width, resulting in multiple data points covering the drum width (see Figure 3.2). This process is used to track partial drum overlaps among passes. Mesh Roller Width Rolling Direction Data Point Figure 3.2 Schematic of gridded IC data. 3.1.8 Gridded Final Coverage Data summarizes the final (last) Measurement Passes recorded for a given grid (e.g., total pass count, last stiffness, last temperature [see Figure 3.1]). 3.1.9 Instrumented Roller is a self-propelled roller integrated with a global position monitoring system and onboard documentation system that can display real-time color-coded maps of roller location, number of passes, roller speeds, and amplitude and vibration frequencies of the roller drum. Some systems are also equipped with drum vibration instrumentation, infrared temperature sensors, and/or Automatic Feedback Control. The onboard documentation system on these rollers would also display real-time color-coded maps of stiffness response or pavement surface temperatures, or both. 3.1.10 Instrumented Roller Failure is when the Instrumented Roller system does not collect and/or store data per the requirements of 2016 Quality Management Special IC Method S-xx.3.E.7 and S-xx.3.E.8, and/or the roller becomes inoperable. 3.1.11 Intelligent Compaction Measurement Value (ICMV) is the stiffness of the materials based on the response of the roller drum vibrations and underlying material responses. 3.1.12 Intelligent Compaction (IC) Roller is used synonymously with Instrumented Roller. 3.1.13 Intelligent Compaction Supervisor is the Contractor s person responsible for performance and compliance with intelligent compaction requirements.

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 6 3.1.14 Layer is the total thickness of each material type. It may be comprised of single or multiple Lifts. 3.1.15 Layer Identification (Layer ID) is the reference name of the material and lift currently being compacted (see example illustrated in Figure 3.3). Asphalt Pavement Surface/Wear Course (Layer ID = HMA L2) Asphalt Pavement Base Course (Layer ID = HMA L1) Base (Layer ID = Pre-grind, SFDR, or Cl 5) Subbase (Layer ID = Select Granular) Figure 3.3 Example of Layer Identifications (ID). 3.1.16 Lift is a unit of material within a Layer that is placed for compaction. 3.1.17 Measurement Pass is a Roller Pass, performed by an Instrumented roller, where all required information (per 2016 Quality Management Special IC Method S-xx.3.E.8) is recorded in a Data File. 3.1.18 Mesh is a collection of vertices connected to other vertices that defines the shape of the roller drum in two (2) Dimensional (2D) polygons (typically multiple squares). The defined data mesh size is generally 0.3 m by 0.3 m (1 ft by 1 ft) in horizontal directions (see Figure 3.2). 3.1.19 Onsite IC Support is the Contractor s personnel responsible for the onsite execution of the intelligent compaction requirements. The Onsite IC Support must also understand and perform the responsibilities per Table 3.3. 3.1.20 Operating Settings are roller settings (e.g., speed, direction, frequency, peak vertical force amplitude). 3.1.21 Operator(s) of Instrumented Roller(s) is the Contractor s personnel operating instrumented roller(s). The operator must comply with the requirements of this specification and understand and perform the responsibilities per Table 3.4. 3.1.22 Project Percent Coverage (PPC) is the percent of required compaction area, for the project, where the minimum required Cumulative Measurement Pass Count is achieved. 3.1.23 Quality Control Personnel are the individuals employed by the Contractor to execute this work. 3.1.24 Raw Data is data recorded during compaction operations prior to the gridding process. It consists of one data point for a roller drum width, recorded at approximately 10 Hz or 0.3 m (1

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 7 ft) intervals. Therefore, the data mesh (data footprint) is about one drum width by 0.3 m (1 ft) (see Figure 3.4). Data Foot Print Roller Width Data Point Figure 3.4 Schematic of raw data. 3.1.25 Roller Pass is the area covered by one width of the roller in a single direction. 3.2 Acronyms and Abbreviations DPC daily percent coverage IC intelligent compaction ICMV intelligent compaction measurement value Layer ID layer identification PPC project percent coverage 3.3 Check List for 2016 Quality Management (QM) Special Intelligent Compaction Method Table 3.1 provides a check list for items that are to be completed under the special provision by the Contractor, Department and/or both. Check List Special Provision S-xx.3.A Table 3.1 Check List for 2016 Quality Management Special IC Method Contractor Department Item Description Rover Provided to Department S-xx.3.B.1 Temporary Control Points The Department was provided with one survey grade GNSS Rover Receiver & Kit setup to reference the local, ground-based Base Station or the Network RTK used on the Project. The Department has set temporary Control Points for site calibration.

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 8 Check List Special Provision Table 3.1 Check List for 2016 Quality Management Special IC Method Contractor Department Item Description S-xx.3.B.2 Control Point Coordinates S-xx.3.D.1 Alignment Files with Closed Complex Shape S-xx.3.D.3 Alignment Files Provided The Department has provided the Contractor with the coordinate information for the Control Points. The Department has created the background alignment file with a closed complex shape for the edge of the driving lanes closed off. Department has provided background alignment file(s) to the Contractor in 2D-DGN and 2D-KMZ. Alignment files must contain centerline station numbering and station limits for exceptions. Table S-xx.2 Passwords/User Names Cloud Storage (server) & Cloud Computing (mapping) Includes Bituminous Overlay Projects. The Contractor and Department are provided with the user names/passwords. The Department will provide the Office of Materials and Road Research (OMRR) with the passwords/user names to be used by the Department; such that they can help monitor data. Layer IDs determined for rollers and provided to the Department. S-xx.4.C.1 Layer IDs (see Figure 3.3) Layer IDs allow the Contractor and Department to filter data by a given layer/lift when using mapping software. S-xx.4.C.6 S-xx.4.E.1 S-xx.4.E.2 Daily Number of IC Rollers Used (From IC-107) Coordinates Mainline Verification/QA Sample/Test Locations Coordinates Corrective Action Boundaries (Form IC-105) The Department will provide the OMRR with the layer IDs such that they can help monitor data. The number of rollers used each day (including the ID of the rollers used in tandem) will be used in the method of measurement. Form IC-107 must be submitted on a weekly basis. The Department will forward this form to the OMRR such that they can calculate the percent coverage used in the method of measurement. Department collects coordinates. Used for specification refinement. Correlation analyses will be completed to determine how the Department can potentially use other measurements recorded by the IC rollers. Department collects coordinates. Used for specification refinement. Determine whether the IC stiffness measurements can adequately depict

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 9 Check List Special Provision S-xx.4.E.3 S-xx.4.E.4 Table 3.1 Check List for 2016 Quality Management Special IC Method Contractor Department Item Description Coordinates Daily Production Area Boundaries (Form IC-106) Coordinates Exceptions Boundaries (Form IC-106) weak/yielding areas. If yes, this information may be used for determining additional spot test locations in the future. Department collects coordinates. Coordinates will be used to cut extraneous compaction data (e.g., warm-up passes, shoulders, ramps) from the data used to calculate percent coverage for the basis of measurement. Department collects coordinates. Coordinates will be used to cut extraneous compaction data recorded in exceptions areas from the data used to calculate percent coverage in the basis of measurement. S-xx.4.F Submittals IC-107 (Daily Roller Operations) Weekly S-xx.5 Method of Measurement OMRR will perform calculations. 3.4 Typical Process for IC Data Download, Export and Mapping 3.4.1 See Figure 3.5 for flowchart of the typical process that the IC data is transferred from the rollers to the mapping softwares. 3.4.2 The IC rollers are required to transfer data to a Cloud Storage within 15 minute-intervals when adequate cellular coverage is available; and at least one time per day when there is limited cellular coverage. 3.4.3 The Department will not be using the desktop proprietary software. The use of this software is optional for the Contractor. 3.4.4 Veda is currently being developed by the Department, as a stand-alone, geospatial tool that can import IC data from any vendor, map data and perform the needed analysis for ensuring uniformity, finding weak areas and calculation for the basis of measurement. This tool is currently under development, but already has quite a few tools available for use. The OMRR plans to provide formal training on this tool prior to the 2016 construction season. Training, prior to 2016, is available upon request for those interested in using the current features.

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 10 1 IC Rollers 2 Cloud Storage 3 Desktop Proprietary Software Cloud Computing (Mapping) 3 4 Veda Figure 3.5 Flow chart of the transfer of IC data from the rollers to the mapping software. 3.5 Training of Contractor s Personnel 3.5.1 It is recommended that the Contractor s personnel obtain training per Table 3.2, at least one time per calendar year, prior to use of rollers for compaction efforts. Table 3.2 Training of Contractor Personnel Personnel Training By Training Content Intelligent Compaction Supervisors Onsite IC Support Vendor or Manufacturer See Table 3.3 Operator(s) of the Instrumented Rollers Vendor or Manufacturer, or Intelligent Compaction Supervisor, or Onsite IC Support See Table 3.4

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 11 3.5.2 Table 3.3 provides a check list for content that is recommended for inclusion in training of both the IC Supervisors and Onsite IC Support. Table 3.3 Recommended Training Content for IC Supervisors and Onsite IC Support Training Description Completed Provided Administrator/Manager rights for system troubleshooting and training on how to use complete troubleshooting. Process to contact Vendor / Sales Representative with further issues after troubleshooting. Educated on the training necessary for new or returning operators of instrumented rollers. Setup and operation of the IC system. Setup and operation of Rover. Including coordinate export. Site Setup and Calibration (includes setup of local, ground-based base station, Rovers, MnDOT s RTRN) Verification of complete radio coverage for site. Verification of cellular coverage for site (needed when accessing MnDOT s RTRN). Uploading design and site calibration files to instrumented rollers. Verification of accuracy of instrumented roller (includes: accelerometer range, GNSS Accuracy, pavement surface temperature, digital data recording correctly) Daily checks to ensure that the IC system is mapping (working) correctly. Daily verification of GNSS Coordinates or temperature, or both. Manual and wireless transfer of Data Files. Generation of In-Field Compaction Reports and transfer of reports to Cloud Storage. Creation and setup of folders for different projects in cloud storage. Creation and use of Layer IDs. Use of Manufacturer s IC Software and Cloud Computing. 3.5.3 Table 3.4 provides a check list for content that is recommended for inclusion in the training of the Operators of the Instrumented Rollers. Table 3.4 Recommended Training Content for the Operators of the Instrumented Rollers Training Description Completed Daily setup and operation of Instrumented Roller. Basic troubleshooting of Instrumented Roller System. When to contact Onsite IC Support (e.g., screen not painting, intermittent GPS signal). Manual and wireless transfer of Data Files. Creation and use of Layer IDs. Understanding of importance of Layer IDs for

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 12 data management and correct map visualization by other staff. Generation of In-Field Compaction Reports and transfer of reports to Cloud Storage. Reading of X and Y Coordinates or temperature, or both (on the Onboard Documentation System) for daily verification of GPS and Temperature Measurements 3.6 Approval of Instrumented Rollers for Use (Equipment Demonstration) 3.6.1 It is recommended that the Contractor perform an independent equipment demonstration to ensure that the IC system is working correctly before the start of compaction efforts on each project. 3.6.2 The parameters outlined in Table 3.5 provide general guidance for items to be reviewed during the system check. Case No. 1 2 3 Table 3.5 Recommended Approval of Instrumented Rollers for Use Demonstration Testing Location No. of Passes Measurement Area Width Length Verification of Adequate Sensor Range Soft Material (Note 1) Project Site Stiff Material or Offsite Location 1 7 ft (2 m) 300 ft (100 m) (Note 1) Verification of Data Contained within Measurement pass files Data Quality Project Site 2 7 ft (2 m) 300 ft (100 m) (Note 2) Note 1: Verify that the ICMVs can identify differences between weak and strong materials. Note 2: Verify that all measurements are recorded and meet the requirements of 2016 Quality Management Special IC Method S-xx.3.E.7 and S-xx.E.8. 3.6.2 Figure 3.6 provides a check list for items that are recommended for verification during the system demonstration. 3.6.3 Calibration of GNSS Accuracy Collect and compare the coordinates from the IC System with an independent measuring device. 3.6.3.1 Rover Verify that the Rover(s) are calibrated to the correct coordinate system, using Control Points, within the Project limits. Complete this verification prior to checking the Intelligent Compaction System s GNSS.

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 13 3.6.3.2 Intelligent Compaction System (a) Mark a spot on the ground next to the drum location being recorded and displayed by the Onboard Documentation System (e.g., center [or left or right edge] of the roller drum or of the outside edge of a pneumatic roller tire). NOTE Ensure that the outside edge of a pneumatic roller tire is used, as not all Pneumatic Rollers have a wide-track width. (b) Collect and compare the coordinates from the Rover and the Instrumented Roller. The coordinates should compare within 0.5 ft (150 mm) of each other in the X and Y direction. 3.6.4 Calibration of the IC Temperature Accuracy 3.6.4.1 Power on the IC temperature sensors, a minimum of 10 minutes, before verifying measurements. 3.6.4.2 Collect and compare the temperature measurements from an independent device and the Instrumented Roller for the front sensor (and for the rear mounted sensor when also installed on the roller). The temperatures should compare within 5 F (2.8 C).

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 14 Figure 3.6 Check list for approval for use of instrumented rollers.

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 15 3.7 Design Files 3.7.1 IC projects require the creation of background files created with a closed complex shape where the edge of the driving lanes are closed off at each end. The background files are used to clean the IC data sets for use in the Bases of Measurement. Additionally, loading of these background files onto the IC software and/or equipment allows the contractor to view, real-time, the locations of the given measurements during construction. 3.7.2 Creating a Background File with a Complex Shape and Alignment 3.7.2.1 Opening the MicroStation File Copy a new seed file: pw:\\pw8i.ad.dot.state.mn.us:cadp\documents\caddstandards\mndotstandards\dot_micr O\seed\E2Dseed.dgn to your project folder and rename to Functional Area SP_ic.dgn (e.g. d3408023_ic.dgn). 3.7.2.2 Assign the County Coordinate System Name This will only need to be completed once per file, as it is saved in the File Settings. (a) Select Tools > Geographic > Select Geographic Coordinate System from the MicroStation main menu. (b) If the County has already been defined it will be listed in the dialog. The dialog will be blank if it has not been defined. See Figure 3.7. Figure 3.7 Snapshot of unassigned geographic coordinate system. (c) (d) Click Select from Library (second icon from the left). While one can navigate through the Library tab to find the county, it is easier to use the Search tab. Enter the county into the Search Text and select Find Now. See Figure 3.8. As illustrated in Figure 3.8, at least 3 lines for each county will appear. Select the US Foot option. Click Add to Favorites if it is a county you use often.

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 16 Figure 3.8 Snapshot of county coordinate search library. (e) (f) Select OK to add the County to the Geographic Coordinate System dialog and to close the Select dialog. Review the Coordinate System, and if everything is correct, close the dialog. Figure 3.9 Snapshot of assigned geographic coordinate system. (g) Save these changes in MicroStation, otherwise, exiting and opening the file again will lose the county coordinate system. Additionally, update the server copy to save in ProjectWise. 3.7.2.3 Closed Complex Shape (a) Create a closed complex shape, for each driving lane, where the edge of the driving lanes are closed off at each end (See Figure 3.10).

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 17 Figure 3.10 Snapshot of complex shape / line. (b) Save document as a DGN file. This file will be used on the instrumented roller s onboard display and in the cloud Computing mapping software. Include IC somewhere the design file name, to increase the awareness that this file is not in the standard format of typical design files and is the correct one to use on IC projects (e.g. d3408023_ic.dgn). (Another format of the file can be created (e.g., DWG) by selecting File >Save As. See Figure 3.11.) Figure 3.11 Snapshot of save document feature. (c) Also save the design file as a KMZ (google earth) file. This file will be used with the intelligent construction data management tool Veda. (i) In the Background DGN, Turn off the weights, which are normally too heavy within Google Earth. (ii) Set the view to the area of interest. Please note that the larger the area, the fuzzier Google Earth is when using the zoom feature. (iii) Select Tools > Geographic > Export Google Earth (KML) File from the main MicroStation menu. (iv) A ProjectWise dialog will open where one can name the Google Earth file. Please note that it is creating a KMZ file, not KML as seen in the tool tip. Use the default name if a KMZ file has not already been created from this MicroStation file. Otherwise, change the name in order to save in PW. Click Save. (v) The following are some miscellaneous details related to the use of Google Earth.

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 18 Google Earth opens and moves to the location of the file. One will see the Google Earth background, with the MicroStation drawing on top. See Figure 3.12. 3.12 Snapshot of alignment file on google earth background. If the MicroStation Elements appear dis-jointed or incomplete, toggle OFF then ON the location in the Places area of the side bar. This will refresh the elements to allow them to display properly. Zoom in and out using the wheel on the mouse. Pan by holding down the data point button on the mouse. If the view is drifting, click a data point on the screen. If the sidebar menu is not displayed, select View > Sidebar. Here one can turn off/ on the levels in the MicroStation File (e.g., Street Names, etc). To see the videolog tool, toggle on Street View in the lower left section of the sidebar (Layers section). Small cameras appear in the drawing. Click on one to open to Street view. To get back to the Top view, click the design file in the Places section in the Sidebar menu.

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 19 4.0 Paver Mounted Infrared Temperature (PMIT) System for Thermal Profiles 4.1 Definitions 4.1.1 Daily Percent Coverage (DPC) is the percent of the daily paving area where thermal profiling measurements are collected and stored, for the Project. 4.1.2 Driving Lanes are the primary driving lanes and auxiliary lanes, excluding: turn lanes, side streets, ramps, loops, shoulders, gore areas, cross-overs and parking lanes. 4.1.3 Paver Mounted Infrared Temperature System (PMIT) is a system that continually monitors the temperature of the mat immediately behind the paver screed during placement operations using infrared temperature sensor(s). 4.1.4 Project Percent Coverage (PPC) is the percent of the total paving area where thermal profiling measurements are collected and stored, for the Project. 4.1.5 Thermal Profiles are the infrared temperature measurements behind the screed, evaluated in 150-foot sublots. 4.2 Acronyms and Abbreviations DPC daily percent coverage PMIT paver mounted infrared temperature system PPC project percent coverage 4.3 Approval of PMIT Systems for Use 4.3.1 It is recommended that the Contractor perform an independent equipment check to ensure that the PMIT system is working correctly before the start of paving efforts on each project. 4.3.2 Calibration of GNSS Accuracy Collect and compare the coordinates from the IC System with an independent measuring device. 4.3.2.1 Rover Verify that the Rover(s) are calibrated to the correct coordinate system, using a Control Points. Complete this verification prior to checking the PMIT System s GNSS. 4.3.2.2 Collect and compare the coordinates from the Rover and the PMIT System. The coordinates should compare within 4 ft (1.2 m) of each other in the X and Y direction.

October 31, 2014 ADVANCED MATERIALS AND TECHNOLOGY MANUAL 20 4.3.3 Calibration of the PMIT Infrared Temperature Sensor(s) Accuracy Collect and compare the temperature measurements from an independent device and the PMIT System on a material of a known temperature. The temperatures should compare within the requirements of SP2016 Quality Management Table S-xx.1. 4.3.4 Calibration of the PMIT DMI Accuracy Verify that the DMI has the correct correction factor for accurate stationing per the manufacturer s procedures. 4.4 Field Review of Thermal Profiles by Department It is recommended that the Department views the thermal profiling data and/or thermal summary on the PMIT system display within the first 100 tons of production and at about 1,000 ton intervals thereafter, for each day of production. This periodic review is intended to assist with ensuring that there are no problems with the system and/or production efforts.