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PORTABLE TRAFFIC MONITORING SITE INSTALLATION AND INSPECTION TRAINING PRESENTED BY: FLORIDA DEPARTMENT OF TRANSPORTATION AND SOUTHERN TRAFFIC SERVICES.

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Presentation on theme: "PORTABLE TRAFFIC MONITORING SITE INSTALLATION AND INSPECTION TRAINING PRESENTED BY: FLORIDA DEPARTMENT OF TRANSPORTATION AND SOUTHERN TRAFFIC SERVICES."— Presentation transcript:

1 PORTABLE TRAFFIC MONITORING SITE INSTALLATION AND INSPECTION TRAINING PRESENTED BY: FLORIDA DEPARTMENT OF TRANSPORTATION AND SOUTHERN TRAFFIC SERVICES RUBIE FRASE & TERRY ROBINSON

2 THE IMPORTANCE OF DATA COLLECTING The State Road Department started collecting traffic data at ten locations back in As the state grew both in population and number of lane miles, the need to expand traffic data collection was obvious.

3 THE IMPORTANCE OF DATA COLLECTING The value of good traffic data became apparent early on in the evolution of the national Department of Transportation (DOT) and eventually the Federal Highway Administration (FHWA).

4 THE IMPORTANCE OF DATA COLLECTING This data is translated into revenue allocations for the state and federal highway programs.

5 THE IMPORTANCE OF DATA COLLECTING Good data is a result of good site installations. Good count/speed/vehicle classification and weight data is essential to the following customers: Some Internal Uses: Roadway Design uses our data to determine if facility enhancements/lane additions are needed; Roadway Design uses our data to determine if facility enhancements/lane additions are needed; Pavement Design uses our data to determine pavement type & thickness requirements; Pavement Design uses our data to determine pavement type & thickness requirements; Traffic Operations/Maint. Use it to determine lane closure restrictions. And there are many others. Traffic Operations/Maint. Use it to determine lane closure restrictions. And there are many others.

6 THE IMPORTANCE OF DATA COLLECTING Data uses (cont.) Some External Uses: The FHWA compiles data for use in national trend reports, national Truck Weight Study and other studies and for apportioning funds back to us; The FHWA compiles data for use in national trend reports, national Truck Weight Study and other studies and for apportioning funds back to us; Advertisers and developers that need to know how many motorists are passing a given location in order to set sign and rates or determine potential demand for retail outlets, etc. (among many others). Advertisers and developers that need to know how many motorists are passing a given location in order to set sign and rates or determine potential demand for retail outlets, etc. (among many others).

7 THE IMPORTANCE OF DATA COLLECTING Two categories of traffic monitoring sites have permanent equipment physically located in the roadway. These are TTMS and PTMS. They are the backbone of the traffic count program administered by the FDOT Central and District Offices.

8 THE IMPORTANCE OF DATA COLLECTING The data collected at these sites may include: volume, speed, vehicle class and weight. The type of equipment installed and the programs set-up in the equipment determine how the site functions.

9 TTMS

10 TELEMETERED TRAFFIC MONITORING SITE TTMS sites are the locations that are polled via modem daily by the TRANSTAT Central Office computers. They record and transmit every day of the year and provide the data used for adjusting short-term traffic counts to Annual Average Daily Traffic (AADT). TTMS sites are the locations that are polled via modem daily by the TRANSTAT Central Office computers. They record and transmit every day of the year and provide the data used for adjusting short-term traffic counts to Annual Average Daily Traffic (AADT). TTMS sites are installed and maintained out of Central Office in Tallahassee. TTMS sites are installed and maintained out of Central Office in Tallahassee. Many have solar panels Many have solar panels TTMS

11 PTMS TYPE II BASE MOUNTED TYPE III PEDESTAL MOUNTED

12 PORTABLE TRAFFIC MONITORING SITE PTMS locations are usually installed on high volume urban arterials where rubber hose counts or other equipment is difficult to install and maintain. PTMS locations are usually installed on high volume urban arterials where rubber hose counts or other equipment is difficult to install and maintain. PTMS

13 PTMS The permanent part of the installation is the cabinet and loop/piezo wires installed in the pavement. Greater reliability, personnel safety, and accuracy are the reason loops and piezos are preferred to hose counts. The permanent part of the installation is the cabinet and loop/piezo wires installed in the pavement. Greater reliability, personnel safety, and accuracy are the reason loops and piezos are preferred to hose counts. Loop Piezo

14 PTMS Loops provide a volume count of vehicles crossing the loop sensors. The piezos provide classification count which measures the axles as the vehicle crosses the piezo. Loops provide a volume count of vehicles crossing the loop sensors. The piezos provide classification count which measures the axles as the vehicle crosses the piezo. LOOP PIEZO

15 PTMS To gather data, a traffic counter is normally placed in the cabinet and attached to the wire harness for a short period (2 – 7 days) either annually or quarterly, then moved from one site to another, hence the term portable traffic monitoring site. To gather data, a traffic counter is normally placed in the cabinet and attached to the wire harness for a short period (2 – 7 days) either annually or quarterly, then moved from one site to another, hence the term portable traffic monitoring site.

16 PTMS ADR-1000 COUNTER IN CABINET

17 HISTORY OF ISSUES Issue – PTMS Inspections Not Passing Resolution – Train DOT, Construction, Contract and Sub-contract employees on how to install a PTMS site.Resolution – Train DOT, Construction, Contract and Sub-contract employees on how to install a PTMS site.

18 OBJECTIVE FOR THIS CLASS Above all, the need to follow Design Standards and Plan Specifications. Design standards are reviewed every year and changes made as needed. You need to keep a copy of the latest standards with you at all times. Design standards are reviewed every year and changes made as needed. You need to keep a copy of the latest standards with you at all times. The following slide reflects a major change to loops. The following slide reflects a major change to loops.

19 OBJECTIVE FOR THIS CLASS Square Corners

20 OBJECTIVE FOR THIS CLASS Above all, the need to follow Design Standards and Plan Specifications. Review the plans and follow the placement, materials to be used and location precisely. Review the plans and follow the placement, materials to be used and location precisely. For Example: Loops are no longer to be cut at a 45° angle. Since the year 2001 the standard is to drill corners with a 1.5 bit by 2 minimum depth.For Example: Loops are no longer to be cut at a 45° angle. Since the year 2001 the standard is to drill corners with a 1.5 bit by 2 minimum depth.

21 OBJECTIVE FOR THIS CLASS Above all, the need to follow Design Standards and Plan Specifications. Loops SHOULD NOT be cut across the concrete joint in the roadway. As the vehicles travel across the pavement, the pavement jars and could loosen the loop wires and render them useless. Loops SHOULD NOT be cut across the concrete joint in the roadway. As the vehicles travel across the pavement, the pavement jars and could loosen the loop wires and render them useless.

22 OBJECTIVE FOR THIS CLASS

23 Above all, the need to follow Design Standards and Plan Specifications. Piezos come with a warranty card. The warranty card must be filled out and a copy of it placed in the cabinet along with a copy of the cabinet schematics. Piezos come with a warranty card. The warranty card must be filled out and a copy of it placed in the cabinet along with a copy of the cabinet schematics.

24 OBJECTIVE FOR THIS CLASS

25 Above all, the need to follow Design Standards and Plan Specifications. The difference between a good and bad site! Good Bad Good Bad

26 OBJECTIVE FOR THIS CLASS Above all, the need to follow Design Standards and Plan Specifications. Every time a site does not pass on the first inspection is wasted tax payers money. This affects all of us including you. Every time a site does not pass on the first inspection is wasted tax payers money. This affects all of us including you.

27 GOING FORWARD The plans are delivered to the Data Collection Manager, and they review them for proper location, design and placement. The plans are delivered to the Data Collection Manager, and they review them for proper location, design and placement.

28 GOING FORWARD

29 The Data Collection Manager shall be contacted by the contractor and/or sub-contractor prior to any installation. This includes the cabinet, loops and piezos. The Data Collection Manager shall be contacted by the contractor and/or sub-contractor prior to any installation. This includes the cabinet, loops and piezos.

30 GOING FORWARD The Data Collection Manager shall be contacted when the site has been installed and ready for inspection. The Data Collection Manager shall be contacted when the site has been installed and ready for inspection. In most cases, there is a bonus tied to the project. If the site does not pass….your company may lose or be the cause of any bonus not being paid. In most cases, there is a bonus tied to the project. If the site does not pass….your company may lose or be the cause of any bonus not being paid.

31 GOING FORWARD In your travels throughout the district, if you find a damaged site, please do the following: In your travels throughout the district, if you find a damaged site, please do the following: Take a picture of the damage.Take a picture of the damage. Call Road Rangers or local police if the site was involved in an accident.Call Road Rangers or local police if the site was involved in an accident. Contact the Data Collection Manager immediately.Contact the Data Collection Manager immediately. In most cases, if the damage was caused by an accident, we can recoup the cost of repair from the at-fault insurance company.In most cases, if the damage was caused by an accident, we can recoup the cost of repair from the at-fault insurance company.

32 CONTACT INFORMATION RUBIE FRASE – I am the main contact person for District – Office – Office Cell Cell

33 TECHNICAL PRESENTATION Presented by Terry Robinson – Southern Traffic Services

34 PRE-ENGINEERING PlanningMaterialsAction

35 PRE-ENGINEERING PLANNING Sites are selected by the Data Collection and Planning Office in most scenarios. Sites are selected by the Data Collection and Planning Office in most scenarios. Sites are approved by the District Engineers. Sites are approved by the District Engineers. Plans are developed by the Office of Design and reviewed by the Data Collection Office. Plans are developed by the Office of Design and reviewed by the Data Collection Office.

36 PRE-ENGINEERING PTMS sites are independent of one another, and sites are built to fit the location. PTMS sites are independent of one another, and sites are built to fit the location. Numerous departments are involved with the building of a PTMS site. Statistics office, Planning office, Data office, Design office, Engineering office, Construction division, etc. Numerous departments are involved with the building of a PTMS site. Statistics office, Planning office, Data office, Design office, Engineering office, Construction division, etc.

37 PRE-ENGINEERING Utility locates are completed Utility locates are completed Pavement is cured and ready for sensors Pavement is cured and ready for sensors All equipment is on hand and meets Approved Product List (APL) and Qualified Product List (QPL) All equipment is on hand and meets Approved Product List (APL) and Qualified Product List (QPL)

38 PRE-ENGINEERING Engineers have approved ALL Plans and changes Engineers have approved ALL Plans and changes Schedules have been approved by: Project Manager, Project Engineer, Traffic Operations Engineer, Consultant Schedules have been approved by: Project Manager, Project Engineer, Traffic Operations Engineer, Consultant Maintenance of Traffic Plan submitted and Approved. Maintenance of Traffic Plan submitted and Approved.

39 WHAT ARE THE COMPONENTS OF A PTMS SITE? MATERIALS Cabinet – Type III, IV, and V Cabinet – Type III, IV, and V Piezoelectric sensors Piezoelectric sensors Inductive Loop sensors Inductive Loop sensors Pull boxes Pull boxes Grounding electrodes Grounding electrodes Surge Protection Surge Protection Conduit Conduit

40 MATERIALS Is cabinet in place? Is cabinet in place? Does cabinet face the right direction? Does cabinet face the right direction? Does cabinet meet plans and specifications? Does cabinet meet plans and specifications? Pull boxes in place and installed to specifications? Pull boxes in place and installed to specifications? All conduits in place? All conduits in place? Have piezo sensors been tested prior to installation Have piezo sensors been tested prior to installation

41 MATERIALS Do loop wires and cables meet QPL? Do loop wires and cables meet QPL? Are epoxies and sealants approved? Are epoxies and sealants approved? Are dates on piezos, sealants and epoxies recorded? Are dates on piezos, sealants and epoxies recorded?

42 ACTION Areas of Concern Maintenance of Traffic (MOT) Maintenance of Traffic (MOT) Review of MOT Plan Review of MOT Plan Placement of Temporary Traffic Control Devices Placement of Temporary Traffic Control Devices Any ADDITIONAL SIGNS REQUIRED? Any ADDITIONAL SIGNS REQUIRED? District or Area Public Information Office Contacted? District or Area Public Information Office Contacted?

43 ACTION Verify all Public Safety and Local Governments are aware of Lane Closures Verify all Public Safety and Local Governments are aware of Lane Closures Update Traffic Operations if changes are made to MOT Plan Update Traffic Operations if changes are made to MOT Plan Notify ALL parties that all lanes are open upon completion Notify ALL parties that all lanes are open upon completion

44 BREAK TIME

45 INDUCTIVE LOOP ASSEMBLIES Inductive loops are simply a coil of wire embedded in the roads surface. Inductive loops are simply a coil of wire embedded in the roads surface. The loops that are installed in the State of Florida and used by the FDOT are usually 6 X 6 loops using 12 gauge wire consisting of 4 turns. The loops that are installed in the State of Florida and used by the FDOT are usually 6 X 6 loops using 12 gauge wire consisting of 4 turns. 2 loops are installed in each lane that work in conjunction with the Piezoelectric Sensors. 2 loops are installed in each lane that work in conjunction with the Piezoelectric Sensors.

46 INDUCTIVE LOOP ASSEMBLIES What is an inductor? What is an inductor? An inductor is simply a coil of wire or an electromagnet. An inductor is simply a coil of wire or an electromagnet. The inductor or wire has a very low resistance. When a vehicle passes over the loop, the inductance is elevated. This unit of increase is measured in Henrys, or microhenries. The vehicle becomes the inductor or the coil. The inductor or wire has a very low resistance. When a vehicle passes over the loop, the inductance is elevated. This unit of increase is measured in Henrys, or microhenries. The vehicle becomes the inductor or the coil.

47 LAYOUT OF SENSORS Verify the space of the sensors Verify the space of the sensors Standard spacing is 16 feet from leading edge of leading loop to leading edge of trailing loop Standard spacing is 16 feet from leading edge of leading loop to leading edge of trailing loop Loops MUST be in CENTER of lane and MUST NOT cross expansion joints unless approved by Engineer prior to installations Loops MUST be in CENTER of lane and MUST NOT cross expansion joints unless approved by Engineer prior to installations

48 LAYOUT OF SENSORS Standard loops are 6 foot by 6 foot, 4 turns on each loop Standard loops are 6 foot by 6 foot, 4 turns on each loop Loops cut in asphalt SHALL be cut to a depth of 3 inches or deeper Loops cut in asphalt SHALL be cut to a depth of 3 inches or deeper Loops cut in concrete SHALL be cut 2.5 inches or deeper Loops cut in concrete SHALL be cut 2.5 inches or deeper Piezo Sensors shall be placed on one side of the lane and NOT placed in the middle of the lane Piezo Sensors shall be placed on one side of the lane and NOT placed in the middle of the lane

49 LAYOUT OF SENSORS LOOP PIEZO

50 LOOPS & LOOP INSTALLATIONS Loops shall be installed as per FDOT Standards and Specifications Loops shall be installed as per FDOT Standards and Specifications FDOT District 5 Standards REQUIRE that LOOPS ARE NOT TO BE SPLICED FDOT District 5 Standards REQUIRE that LOOPS ARE NOT TO BE SPLICED Loop wires are to be checked prior to installation Loop wires are to be checked prior to installation Loops are to be placed in the BOTTOM of the slots Loops are to be placed in the BOTTOM of the slots

51 LOOPS & LOOP INSTALLATIONS Insure there are not any scars, rips, insulation abrasions, or kinks in the wire assembly Insure there are not any scars, rips, insulation abrasions, or kinks in the wire assembly All loops will be DRILLED in the corner using a 1.5 inch diameter bit All loops will be DRILLED in the corner using a 1.5 inch diameter bit Make sure slots are clear of debris, rocks, and asphalt deposits Make sure slots are clear of debris, rocks, and asphalt deposits Verify depths are uniform throughout the entire cut Verify depths are uniform throughout the entire cut

52 LOOPS & LOOP INSTALLATIONS No loops shall be installed in WET asphalt or concrete No loops shall be installed in WET asphalt or concrete Do not apply sealants if roadway has residue or moisture in slots or on surface around cuts Do not apply sealants if roadway has residue or moisture in slots or on surface around cuts A minimum of 2 inches of clearance from the top of the loop wire in the slot to the surface of the roadway is required A minimum of 2 inches of clearance from the top of the loop wire in the slot to the surface of the roadway is required

53 LOOPS & LOOP INSTALLATIONS Loops shall be twisted a minimum of 6 to 12 turns per foot throughout the entire homerun length Loops shall be twisted a minimum of 6 to 12 turns per foot throughout the entire homerun length Loops shall be marked in pull box and inside the cabinet Loops shall be marked in pull box and inside the cabinet Homeruns shall be placed in the bottom of each cut Homeruns shall be placed in the bottom of each cut

54 LOOPS & LOOP INSTALLATIONS The homerun cut will start at 3 inches deep and for each additional homerun added to the slot and additional ½ inch will be cut to the depth The homerun cut will start at 3 inches deep and for each additional homerun added to the slot and additional ½ inch will be cut to the depth This process will allow for fewer homerun cuts to the roadway This process will allow for fewer homerun cuts to the roadway

55 PULL BOX LOOP PIEZO HOMERUN CONDUIT

56 LOOPS & LOOP INSTALLATIONS We test all loops upon final inspection We test all loops upon final inspection We are checking the insulation, signal strength and circuit of the loops We are checking the insulation, signal strength and circuit of the loops We WILL NOT pass any loop that does no meet Entire Minimum Specifications We WILL NOT pass any loop that does no meet Entire Minimum Specifications

57 PIEZO INSTALLATIONS Piezoelectric sensors most commonly used by FDOT are Measurement Specialties Incorporated (MSI) – BL Roadtrax Piezoelectric sensors most commonly used by FDOT are Measurement Specialties Incorporated (MSI) – BL Roadtrax Sensors – BL is short for Brass Linguini Sensors – BL is short for Brass Linguini

58 PIEZO INSTALLATIONS

59 Piezoelectric systems use piezoelectric sensors. The sensors are embedded in a conducting material. When weight is applied the pressure changes the voltage of the electric charge flowing through the conductor. The sensors measure the change in voltage and calculate the load. Piezoelectric systems use piezoelectric sensors. The sensors are embedded in a conducting material. When weight is applied the pressure changes the voltage of the electric charge flowing through the conductor. The sensors measure the change in voltage and calculate the load.

60 PIEZO SENSORS The base technology is piezoelectric polymer. The Brass Linguini is a highly compressed piezoelectric polymer in a coaxial configuration, with brass outer casing. The base technology is piezoelectric polymer. The Brass Linguini is a highly compressed piezoelectric polymer in a coaxial configuration, with brass outer casing. The BL is flat, about 1/16 (1.5mm) thick and ¼ (7mm) wide. The sensors are put into the road in a ¾ (19mm) wide and 1.5 (25mm) deep slot cut in the road. The BL is flat, about 1/16 (1.5mm) thick and ¼ (7mm) wide. The sensors are put into the road in a ¾ (19mm) wide and 1.5 (25mm) deep slot cut in the road.

61 PIEZO SENSORS Installations Piezo sensors are to be installed to Manufacture Specifications Piezo sensors are to be installed to Manufacture Specifications All warranty cards and manufacture paperwork shall be left in the cabinet upon installation All warranty cards and manufacture paperwork shall be left in the cabinet upon installation All testing of sensors are to be performed in front of a Representative of the FDOT All testing of sensors are to be performed in front of a Representative of the FDOT

62 PIEZO SENSORS Installations Epoxies to be used are as follows: Epoxies to be used are as follows: AS475: asphalt, modified mixes, superpave roadways AS475: asphalt, modified mixes, superpave roadways G100-EBOND: concrete G100-EBOND: concrete NO SPLICING OF PIEZO SENSORS NO SPLICING OF PIEZO SENSORS All piezo sensors MUST be marked in each pull box and inside of cabinet All piezo sensors MUST be marked in each pull box and inside of cabinet

63 PIEZO SENSORS Installations Re-test all piezo sensors in cabinet Re-test all piezo sensors in cabinet ***Piezo sensors shall be pushed down to.250 inches below surface of roadway*** This is a NEW application in FDOT Standards!!! ***Piezo sensors shall be pushed down to.250 inches below surface of roadway*** This is a NEW application in FDOT Standards!!!

64 PULL BOX AND CONCRETE APRONS Pull boxes may be made of Quazite material or concrete with a steel lid Pull boxes may be made of Quazite material or concrete with a steel lid All pull boxes must have locking bolts and screws All pull boxes must have locking bolts and screws Each pull box is required to have a concrete apron that is 12 inches off each edge, 4 inches deep and slopes away to the surface around the pull box Each pull box is required to have a concrete apron that is 12 inches off each edge, 4 inches deep and slopes away to the surface around the pull box

65 PULL BOX AND CONCRETE APRONS Pull boxes shall have a minimum of 8 inches of washed gravel inside of the base Pull boxes shall have a minimum of 8 inches of washed gravel inside of the base All pull boxes shall have clearly marked cables and conduits All pull boxes shall have clearly marked cables and conduits

66 CABINETS All cabinets should meet the Specifications on the plans All cabinets should meet the Specifications on the plans All cabinets shall be mounted 48 inches off the ground measured to the handle of the cabinet to ground All cabinets shall be mounted 48 inches off the ground measured to the handle of the cabinet to ground The cabinet shall have proper grounding and grounding electrodes in place The cabinet shall have proper grounding and grounding electrodes in place

67 IN-ROAD SENSOR TEMPLATES The most common configuration used is the Loop-Piezo-Loop. The most common configuration used is the Loop-Piezo-Loop. Piezo-Loop-Piezo configurations are also used in some scenarios. Piezo-Loop-Piezo configurations are also used in some scenarios. WIM or Weigh in Motion sites most commonly use Piezo-Loop-Piezo configurations. WIM or Weigh in Motion sites most commonly use Piezo-Loop-Piezo configurations.

68 IN-ROAD SENSOR TEMPLATES PTMS sites that collect volume and speed only by lane are made up of loop-loop configurations. PTMS sites that collect volume and speed only by lane are made up of loop-loop configurations. The type of sensors to be installed will be determined by the appropriate parties and placed in the design plans. The type of sensors to be installed will be determined by the appropriate parties and placed in the design plans.

69 SITE LAYOUT AND MEASUREMENTS Determine where the Piezo sensor will be placed in the lane. Determine where the Piezo sensor will be placed in the lane. Piezos are always laid perpendicular to the lane. Piezos are always laid perpendicular to the lane. Mark the line with crayon or paint using a straight edge. Mark the line with crayon or paint using a straight edge. Add 6 inches to the length of the piezo to insure the length is correct. Add 6 inches to the length of the piezo to insure the length is correct.

70 SITE LAYOUT AND MEASUREMENTS The piezo MUST BE located between the loops in the travel lane. The piezo MUST BE located between the loops in the travel lane. Measure upstream from the piezo 5 feet and mark this spot with crayon or paint. Measure upstream from the piezo 5 feet and mark this spot with crayon or paint. Measure from the piezo 11 feet and mark with crayon or paint. Measure from the piezo 11 feet and mark with crayon or paint. Using the center point we have already determined, we will now layout the loop. Using the center point we have already determined, we will now layout the loop.

71 SITE LAYOUT AND MEASUREMENTS The loop is marked and painted. The loop is marked and painted. Using a steel tape we will now measure 16 feet downstream and make a mark, this is the leading edge for the trailing loop. We will now measure 22 feet from the leading loop (this is 6 feet behind the mark we just made). We now have the second loop ready to mark and paint. Using a steel tape we will now measure 16 feet downstream and make a mark, this is the leading edge for the trailing loop. We will now measure 22 feet from the leading loop (this is 6 feet behind the mark we just made). We now have the second loop ready to mark and paint.

72 SITE LAYOUT AND MEASUREMENTS We will use a straight edge that is at least 6 feet long to mark each leg of the loops. We will use a straight edge that is at least 6 feet long to mark each leg of the loops. A Laser may also be used to insure the loops are parallel in the lane. A Laser may also be used to insure the loops are parallel in the lane. We now have a loop-piezo-loop configuration. We now have a loop-piezo-loop configuration.

73 SITE LAYOUT AND MEASUREMENTS Check the loops from the stripe using a steel tape, each loop should be the same distance from the edge line or skip line, if not check the measurements and adjust until the distances are the same. Check the loops from the stripe using a steel tape, each loop should be the same distance from the edge line or skip line, if not check the measurements and adjust until the distances are the same. See diagrams for reference. See diagrams for reference.

74 CONSTRUCTION CHECKLIST - PIEZOS 1. Type I or II 2. Cable length of piezo sensors 3. Approved Epoxy on Approved Products List 4. Depth of saw cut – 7/8 – 1.25 to Width of saw cut – ¾ – 7/8

75 CONSTRUCTION CHECKLIST - PIEZOS 6. Piezo tested prior to installations 7. Warranty cards filled out completely 8. Slots clean of debris and water 9. Epoxy mixed to manufacturers standard 10. Duct tape applied to each side of piezo cut

76 CONSTRUCTION CHECKLIST - PIEZOS 11. Epoxy poured in several lifts or layers 12. Sensor cables at correct depth 13. Sensors retested after epoxy is applied 14. Manufacturer install sheets completed 15. Cables marked with lane of piezo

77 CONSTRUCTION CHECKLIST - LOOPS 1. Loops are corrected cut and corners drilled. 2. Loops are cut at correct depth 3. Loop wire is 12 gauge wire that is gasoline and oil resistant 4. Loop wire is placed into bottom of slot, no visible kinks or knots in wire

78 CONSTRUCTION CHECKLIST - LOOPS 5. Wire is applied with a blunt object (not a screwdriver, knife, etc.) 6. Loop wire is turned 4 times in grid 7. Loop wire is continuous with no splices in roadway 8. Loop slots are clean and compressed air used to blow out slots 9. Loop slots are dry

79 CONSTRUCTION CHECKLIST - LOOPS 10. Loop wire is placed in slot only when all saws and blowers are no longer in use 11. Loop wires are twisted at homerun junction – 6-12 twists per foot 12. Wire is re-inspected for cuts, nick, knots.

80 CONSTRUCTION CHECKLIST - LOOPS 13. Wire is placed into conduit and gently pulled to pull boxes. 14. Loop wires are marked in pull box and coiled with inches of excess wire 15. Wire is tested for inductance and continuity

81 CONSTRUCTION CHECKLIST – PULL BOXES 1. Pull box meets specification 2. Pull box is placed in solid ground 3. Pull box has correct depth of washed gravel 4. Pull box has a 5 concrete pad surrounding it 5. Pull box is level and allows water to run off and not collect in or on pull box 6. Grass and aggregates are placed around pull box to prevent erosion

82 CONSTRUCTION CHECKLIST - CABINETS 1. Cabinet should meet Specifications 2. Cabinet should be securely anchored 3. Cabinet should be properly grounded 4. Cabinet should be mounted with the center of the cabinet at 48 from the ground 5. Cabinet should be facing away from the roadway

83 PTMS CHECKLIST Are piezo lengths correct? ______ Are piezo lengths correct? ______ Are piezo cables long enough to reach the cabinet? ______ Are piezo cables long enough to reach the cabinet? ______ Is the epoxy being used approved and mixed properly? ______ Is the epoxy being used approved and mixed properly? ______ Is loop wire 12 gauge and gasoline and oil resistant? ______ Is loop wire 12 gauge and gasoline and oil resistant? ______ Are loops located in the center of the lane? ______ Are loops located in the center of the lane? ______

84 PTMS CHECKLIST Have piezos been checked prior to placement in road? ______ Have piezos been checked prior to placement in road? ______ Has warranty card and paperwork been completed? ______ Has warranty card and paperwork been completed? ______ Is roadway clean and all equipment turned off before sensors installed? ______ Is roadway clean and all equipment turned off before sensors installed? ______ Are saw cuts clean and is depth the same throughout entire loop/piezo? ______ Are saw cuts clean and is depth the same throughout entire loop/piezo? ______ Are corners of loops drilled with a 1 1/2 bit? ______ Are corners of loops drilled with a 1 1/2 bit? ______

85 PTMS CHECKLIST Do loop wires lay in bottom of slots without rise and falls? ______ Do loop wires lay in bottom of slots without rise and falls? ______ Is loop wire twisted at homerun intersection? ______ Is loop wire twisted at homerun intersection? ______ Do loop wires have any kinks or cuts? ____ Do loop wires have any kinks or cuts? ____ Is loop sealant applied evenly and covers all the slots? ______ Is loop sealant applied evenly and covers all the slots? ______ Is the excess loop sealant removed from the roadway? ______ Is the excess loop sealant removed from the roadway? ______

86 PTMS CHECKLIST Is epoxy mixed correctly? ______ Is epoxy mixed correctly? ______ Is epoxy on the APL list? ______ Is epoxy on the APL list? ______ Was the piezo epoxy applied in layers? ___ Was the piezo epoxy applied in layers? ___ Is epoxy cured and dry? ______ Is epoxy cured and dry? ______ Is loop wire labeled? ______ Is loop wire labeled? ______ Are pull boxes approved? ______ Are pull boxes approved? ______ Are pull boxes correctly installed? ______ Are pull boxes correctly installed? ______ Washed gravel in pull boxes? ______ Washed gravel in pull boxes? ______

87 PTMS CHECKLIST Did the contractor assign lane numbers inside the cabinet to piezos/loops? ______ Did the contractor assign lane numbers inside the cabinet to piezos/loops? ______ Is cabinet level? ______ Is cabinet level? ______ Is cabinet accessible? ______ Is cabinet accessible? ______ Is the dirt and grass replaced? ______ Is the dirt and grass replaced? ______ Is dirt compacted to avoid erosion issues? ______ Is dirt compacted to avoid erosion issues? ______ Are all dust, residue and compounds out of the roadway? ______ Are all dust, residue and compounds out of the roadway? ______

88 PTMS CHECKLIST Is cabinet and grounding according to specifications? ______ Is cabinet and grounding according to specifications? ______ Is conduit being used approved? ______ Is conduit being used approved? ______ Are all schematic, paperwork, and warranty cards placed in cabinet? ______ Are all schematic, paperwork, and warranty cards placed in cabinet? ______ Does cabinet lock and secure properly? ___ Does cabinet lock and secure properly? ___

89 QUESTIONS?


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