FHWA LTPP Guidelines For Measuring Bridge Approach Transitions Using Inertial Profilers

Log. Form 2A—photo log:

This figure shows an example of form 2A, which is used to record details of the number and type of picture taken at the time of the survey. Types include pictures of the bridge, the bridge superstructure, pavement section, unique features (e.g., cracks in the pavement, vertical offsets, etc.), and location landmarks. Required fields include date, weather condition, vehicle model, bridge surface type, road surface type, bridge type, bridge name, city/county, State, bridge ID, highway 3, direction, prepared by, file names and direction for taken photos, and an acknowledgement of a performed GPS coordinate check. Definitions of each photo are as follows:

1. Bridge ID Tag on the face of structure wall in the positive direction.
2. Bridge approach interface and beginning stripe, looking with traffic in the positive direction.
3. Bridge approach interface and beginning stripe, looking against traffic in the positive direction.
4. Bridge outside edge and support structure at beginning of bridge, looking against traffic
   (45 degrees) in the positive direction.
5. Bridge outside edge and bridge span at beginning of bridge, looking with traffic (45 degrees) in the positive direction.
6. Bridge approach interface and ending stripe, looking with traffic in the positive direction.
7. Bridge approach interface and ending stripe, looking against traffic in the positive direction.
8. Bridge outside edge and bridge span at ending of bridge, looking against traffic (45 degrees) in the positive direction.
9. Bridge outside edge and support structure at ending of bridge, looking with traffic
   (45 degrees) in the positive direction.
10. Bridge approach interface and beginning stripe, looking with traffic in the negative direction.
11. Bridge approach interface and beginning stripe, looking against traffic in the negative direction.
12. Bridge outside edge and support structure at beginning of bridge, looking against traffic
    (45 degrees) in the negative direction.
13. Bridge outside edge and bridge span at beginning of bridge, looking with traffic (45 degrees) in the negative direction.
14. Bridge approach interface and ending stripe, looking with traffic in the negative direction.
15. Bridge approach interface and ending stripe, looking against traffic in the negative direction.
16. Bridge outside edge and bridge span at ending of bridge, looking against traffic (45 degrees) in the negative direction.
17. Bridge outside edge and support structure at ending of bridge, looking with traffic
    (45 degrees) in the negative direction.
18. Non-standard photo.
19. Non-standard photo.
20. Non-standard photo.

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Log. Form 2B—photo diagram:

This figure shows an example of form 2B, which shows a drawing that provides an overhead view of preferred locations where photos should
be taken. Photo locations are defined in form 2A. Definitions of each photo location are as follows:

1. Bridge ID Tag on the face of structure wall in the positive direction.
2. Bridge approach interface and beginning stripe, looking with traffic in the positive direction.
3. Bridge approach interface and beginning stripe, looking against traffic in the positive direction.
4. Bridge outside edge and support structure at beginning of bridge, looking against traffic
   (45 degrees) in the positive direction.
5. Bridge outside edge and bridge span at beginning of bridge, looking with traffic (45 degrees) in the positive direction.
6. Bridge approach interface and ending stripe, looking with traffic in the positive direction.
7. Bridge approach interface and ending stripe, looking against traffic in the positive direction.
8. Bridge outside edge and bridge span at ending of bridge, looking against traffic (45 degrees) in the positive direction.
9. Bridge outside edge and support structure at ending of bridge, looking with traffic
   (45 degrees) in the positive direction.
10. Bridge approach interface and beginning stripe, looking with traffic in the negative direction.
11. Bridge approach interface and beginning stripe, looking against traffic in the negative direction.
12. Bridge outside edge and support structure at beginning of bridge, looking against traffic
    (45 degrees) in the negative direction.
13. Bridge outside edge and bridge span at beginning of bridge, looking with traffic
    (45 degrees) in the negative direction.
14. Bridge approach interface and ending stripe, looking with traffic in the negative direction.
15. Bridge approach interface and ending stripe, looking against traffic in the negative direction.
16. Bridge outside edge and bridge span at ending of bridge, looking against traffic (45 degrees) in the negative direction.
17. Bridge outside edge and support structure at ending of bridge, looking with traffic
    (45 degrees) in the negative direction.

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Screen capture. Analysis options:

This screen capture shows the profiler system software profiler setup analysis options. The list of inputs are as follows:

• Profile Units—English: Feet radio button is on, and miles radio button is off.
• Profile Units—Metric: Meters radio button and kilometers radio button are off.
• Texture Units—English: Feet radio button is on, and miles radio button is off.
• Texture Units—Metric: Meters radio button is off, and kilometers radio button is off.
• Reduction Settings: Profile reduction length is set to 528 ft (161 m), texture reduction length is set to 528 ft (161 m), “Synchronize Profile and Texture Reduction Segment Length” is checked, and “Static Reduction Segments” is checked.

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Screen capture. Report options:

This screen capture shows the profiler system software profiler setup report options. The list of inputs are as follows:

• Input Format: Left Profile is checked.
• Input Format—Right Profile is checked.
• Input Format—Center Profile is checked.
• Input Format—Left Texture is checked.
• Input Format—Right Texture is checked.
• Profiler Indices Produced—IRI is checked.
• Profiler Indices Produced—HRI is not checked.
• Profiler Indices Produced—RQI is not checked.
• Profiler Indices Produced—CalPro Simulation is checked.
• Profiler Indices Produced—Straightedge is not checked.
• Profiler Indices Produced—RN is checked.
• Profiler Indices Produced—HRN is not checked.
• Profiler Indices Produced—Averages is checked.
• Texture Indices Produced—MPD is not checked.
• Texture Indices Produced—RMS is not checked.
• Texture Indices Produced—ETD is not checked.
• Analysis Summary Files—ASCII Tables is not checked.
• Analysis Summary Files—PDF is checked.
• Analysis Summary Files—CSV Tables is not checked.
• Analysis Summary Files—Ohio Flat ASCII is not checked.
• Analysis Summary Files—HTML Tables is not checked.
• Analysis Summary Files—Australia Excel Template is not checked.
• Analysis Summary Files—Auto Open Table is not checked.
• Analysis Summary Files—Auto Open PDF is checked.
• Analysis Summary Files—GPS Report is not checked.
• Analysis Summary Files—Wisconsin is not checked.
• Header Format—Short radio button is off.
• Header Format—Long radio button is on.
• Header Format—Texas radio button is off.
• Header Format—Custom radio button is off.
• CSV GPS Output—CSV GPS Output is set to Degrees, Minutes, Dec.
• Printer/PDF Output Format—Include Profile on Report is checked.
• Printer/PDF Output Format—Include Summary Tables is checked.
• Printer/PDF Output Format—Include Ignored Sections is checked.
• Printer/PDF Output Format—Profile Horizontal is set to 300.
• Printer Setup—Print Output is not checked.
• Printer Setup—Printer Type is set to Windows Printer.
• Printer Setup—Printer Port is set to USB.
• Profiler Data Output Files—ASCII Text is not checked.
• Profiler Data Output Files—PRO File is not checked.
• Profiler Data Output Files—ERD File is checked.
• Profiler Data Output Files—GPS Elevation is not checked.
• Profiler Data Output Files—ProVAL PPF File is checked.
• Profiler Data Output Files—Google Earth KML is not checked.

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Screen capture. Profile analysis:

This screen capture shows the profiler system software profiler setup profile analysis. The list of inputs are as follows:

• Localized Roughness Settings - IRI Base length is 25 ft (7.6 m).
• Localized Roughness Settings - IRI Threshold is 80 inches/mi (1,263 mm/km).
• Localized Roughness Settings—Localized Roughness Enabled is not checked.
• Bump/Dip Detection Settings - Bump/Dip Width is 25 ft (7.6 m).
• Bump/Dip Detection Settings - Bump/Dip Height is 0.3 inch (7.6 mm).
• Bump/Dip Detection Settings - Bump Detection Enabled is checked.
• Bump/Dip Detection Settings - Dip Detection Enabled is not checked.
• Profile Filter Settings - High Pass Filter Cutoff is 300 ft (91.4 m).
• Profile Filter Settings - Low Pass Filter Cutoff is 0 ft.
• CalPro Filter Settings - Low Pass Filter is 2 ft (0.6 m).
• CalPro Filter Settings - Filter Moving radio button is off.
• CalPro Filter Settings - Filter 3rd Order radio button is on.
• Rolling Straightedge Simulation - Straightedge Length is 10 ft (3.1 m).
• Rolling Straightedge Simulation - Specification limit is 0.25 inch (6.35 mm).
• CalPro Simulation—Blanking Band Width is 0.2 inch (5.1 mm).
• CalPro Simulation—Minimum Scallop Height is 0.03 inch (0.76).
• CalPro Simulation - Minimum Scallop Width is 2 ft (0.6 m).
• CalPro Simulation—Scallop Rounding is 0.01 inch (0.25 mm).
• CalPro Simulation—Count Scallops Once is checked.
• CalPro Simulation—Create Short Segment Summary is checked.
• CalPro Simulation - Short Segment Length is 250 ft (76.2 m).
• Data Output File Sample Rate—Use Raw Sample rate is checked.

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Screen capture. Texture analysis:

This screen capture shows the profiler system software profiler setup texture analysis. The list of inputs are as follows:

• Texture Pre-Processing Settings—Fit Texture Spacing is checked.
• Texture Pre-Processing Settings—Fit Texture Spacing to is 0 inch.
• Texture Pre-Processing Settings—Bridge Dropouts is checked.
• Texture Pre-Processing Settings—Trim Before is 1.
• Texture Pre-Processing Settings—Trim After is 1.
• Texture Pre-Processing Settings—High Pass Filter Cutoff is 0 inch.
• Texture Pre-Processing Settings—Low Pass Filter Cutoff is 0 inch.
• Texture Pre-Processing Settings—Apply 2.5mm Filter is checked.
• Texture Pre-Processing Settings—Spike Removal is not checked.
• Texture Processing Settings—ASTM E1845 is checked.
• Texture Processing Settings—ETD is set as 0.00800 plus 0.80000 star MPD in.

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Screen capture. Header:

This screen capture shows the profiler system software profiler setup header. The list of inputs are as follows:

• Output File—File name is 36A1GNOA.
• Output File—Suffix—None radio button is off.
• Output File—Suffix—Date radio button is off.
• Output File—Suffix—Date is 2/3/2015.
• Output File—Suffix - Number radio button is on.
• Output File—Suffix - Number is 1.
• Output File—Suffix—Next increase is 1.
• Output File—Full File Path is C:\Profiles\36A1GNOA.P01.ard.
• Start/Stop—Start method is PHOTOCELL.
• Start/Stop—Stop Method is DISTANCE.
• Start/Stop—Stop Distance is 2500.00.
• Units—Feet.
• Direction—Positive radio button is on.
• Direction—Negative radio button is off.
• Header Format is Long.
• Beginning Station is 0.
• Job is BRIDGE ID NY-3341880.
• Project is FHWA BRIDGE PROFILE.
• County is ST. LAWRENCE.
• Division is NEW YORK.
• Residence is DIRECTION NORTH.
• Lane is LANE 1.
• Highway is CR 47.
• Lane Location is TROUT CREEK.
• Pass is 0.
• Comments are blank.
• ODS 1 (SLS5200)—Profile is checked.
• ODS 1 (SLS5200)—Laser Alarm is yellow.
• ODS 2 (SLS5200)—Profile is checked.
• ODS 2 (SLS5200)—Auto Trigger is not checked.
• ODS 2 (SLS5200)—Laser Alarm is yellow.
• ODS 3 (SLS5200)—Profile is checked.
• ODS 3 (SLS5200)—Auto Trigger is not checked.
• ODS 3 (SLS5200)—Laser Alarm is yellow.
• ODS 4 (SLS5200)—Texture is checked.
• ODS 4 (SLS5200)—Laser Alarm is yellow.
• ODS 5 (SLS5200)—Texture is checked.
• ODS 5 (SLS5200)—Laser Alarm is yellow.
• PSM—Ambient is checked.
• PSM—Ambient is Connected (16.0 degrees Celsius (61 degrees Fahrenheit)) and green.
• PSM—Surface is checked.
• PSM—Surface is Connected (-2.6 degrees Celsius (−27 degrees Fahrenheit)) and green.
• GPS—Link Quality Invalid.
• GPS—Latitude is 42.99968 N.
• GPS—Longitude is 78.85801 W.

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