1. Welcome to Inspecting Maintenance of Traffic Items on Projects
Name/Background - Stefanie Maxwell, graduated from Georgia Tech with BS in Civil Engineering, started working for the Department, 2 weeks after graduating from college, started as a Professional Engineer Trainee in D2;
have worked for Department for 16 years, 10 years of which were in the field inspecting maintenance of traffic as a Project Engineer and Permits Engineer, and 6 years as a Specialty Engineer for Maintenance of Traffic issues.
Determine makeup of class; i.e., Department employees, consultants, contractors?
Presented by:
Stefanie D. Maxwell, P.E.
FDOT Central Office Construction
February 2010

2. Goal Quickly and correctly inspect maintenance of traffic (MOT) items
Using the tools provided
Determine whether the MOT items are in compliance with the contract
My goal for you is: You will be able to quickly and correctly inspect MOT items, using the tools and resources provided in the training, and determine whether the MOT items are out of compliance with the contract.
The tools and resources can then be used to document incompliance and ultimately bring the items back into compliance with the contract.

3. How did we determine what MOT items?
MOT Process Reviews
Review 4 districts per year
Concurrence with the Contract
Resource: Guidelists and Critical Requirements
How did we determine what MOT items to discuss? Because of the opportunities for improvements discovered from performing Maintenance of Traffic (MOT) process reviews, this training course was put together and includes a presentation with hands-on training, to teach students how to quickly and correctly inspect pavement markings, work zone sign supports, temporary traffic control devices and a few other miscellaneous MOT items. Maintenance of Traffic Reviews are typically performed in 4 districts per year, where the remaining 4 districts are reviewed in the following year, about one per quarter, evaluating each district on a two year cycle. The reviews consist of on-site project visits to review the MOT setup as well as a review of the required documentation in the project files. The field visits are followed up with free training (this course) for the district, inviting construction, maintenance, consultant personnel and contractors. The training topics vary as the most frequently occurring opportunities for improvements are discovered when performing MOT Reviews throughout the state. Last year, the most frequently occurring opportunities for improvements were inspection of: pavement markings, work zone sign supports, and temporary traffic control devices. This year we are going to focus on Barrier and Crash Cushions.
Critical Requirements

4. Outline Inspecting Pavement Markings
Inspecting Work Zone Signs and Supports
Inspecting Temporary Traffic Control Devices
Miscellaneous MOT Issues
Last year, the most frequently occurring opportunities for improvements were inspection of: pavement markings, work zone sign signs and supports, and temporary traffic control devices.
This year we are going to focus on Barrier and Crash Cushions.
The three topics that we are going to touch on today are:
Inspecting Pavement Markings
Inspecting Work Zone Signs and Supports
And
Inspecting Temporary Traffic Control Devices

5. Inspecting Pavement Markings
We will start with Inspecting Pavement Markings

6. Inspecting Pavement Markings
Test pavement markings
Retroreflectivity
Thickness (Thermo)
Pavement markings are tested for retroreflectivity and thickness (only for thermoplastic).

7. Inspecting Pavement Markings
Florida Sampling and Testing Method FM 5-541
Located on State Materials Office website:
Link to FSTM's
Retroreflectivity
Average of 3 retroreflectivity measurements
One at the beginning, middle, and end of each one mile section.
Take in the direction of travel.
Thickness (Thermo)
Take average of 3 location measurement (avg. of 3 dial gauges) at the beginning, middle, and end of each one mile section of line type (i.e. color, solid, skip).
When inspecting pavement markings, the Specifications require that you measure, record and certify pavement markings in accordance with FM
The Florida Sampling and Testing Methods are located on the State Material’s Office website and the link is provided on the slide.
The FM requires that you average 3 retroreflectivity measurements – one at the beginning, middle and end of each one mile section, and it is required to be taken in the direction of travel.

8. Inspecting Painted Pavement Markings
Specifications
Retroreflectivity (Initial)
300 white
250 yellow
Minimum retroreflectivity
150 for both white and yellow
Contractor to submit certification for retroreflectivity but FDOT has 3 days from receipt of the certification to verify that it meets initial values
When inspecting painted pavement markings, Specifications provide the requirements for retroreflectivity.
The initial retroreflectivity requirements are 300 for white and 250 for yellow.
The minimum retroreflectivity allowed by the spec is 150 for both colors.
Contractor is responsible for submitting certification for retro at any time and FDOT has 3 days from receipt of cert to verify initial numbers

9. Form number 700-050-70 Put copy of Retroreflectivity form here
This is certification form.
You can find this form at the link at the bottom of the form.

10. Inspecting Thermoplastic Pavement Markings
Specifications
- Retroreflectivity – Standard Double Drop Thermo
450 white
350 yellow
180 days observation period
Contractor submits certification for retroreflectivity
Retroreflectivity of thermoplastic in accordance with Specifications, Subarticle , Florida Test Method Retro 450 – white, 350 – yellow; contractor to certify retro, maintain 450 and 350 for 180 days.
PART A - Project Based Testing of Traffic Marking Materials
2. TYPES OF TESTING REQUIRED:
2.1 Thickness for thermoplastic materials
2.2 Retroreflectivity for all traffic marking materials
3. EQUIPMENT:
3.1 Traffic Striping Thickness gauge as described in Section 4.1(Fig. 1).
Thickness gauges may be purchased or fabricated.
3.2 Utilize a 30 meter retroreflectometer meeting the requirements of ASTM E
1710.
4.2 Retroreflectivity:
Perform three retroreflectivity measurements, one at the beginning,
middle, and end of each one mile section. A total of three readings are
required and the average is used for acceptance. Retroreflectivity
measurements shall be taken in the direction of travel. Calibrate the
instrument at the beginning of each day of use per the manufacturer’s
instructions. Perform additional calibrations if testing conditions change,
e.g. substantial change in ambient temperature or irregular readings.
4.2.1 Longitudinal Lines
Take measurements at the beginning, middle, and end of each one
mile section of line type (i.e. color, solid, skip).
4.2.2 Messages, Symbols, and Transverse Lines
Perform at a minimum, one retroreflectivity measurement at one
message, one symbol and one transverse line per intersection.
Take one measurement per mile for locations other than
intersections (i.e. school messages, railroad messages, bike
symbols, etc.)

11. Inspecting Thermoplastic Pavement Markings
Thickness – Standard Double Drop Thermo
Minimum: 100 mils or inches
Maximum: 150 mils or inches
Thermo is required to meet the thickness requirements of the Specifications, Subarticle , Florida Test Method 5-541, inches minimum to inches maximum for double drop bead thermoplastic.
From FM 5-541:
4.1 Thickness:
Measure the thickness of thermoplastic striping using an apparatus employing three dial indicators with the measuring points spaced 2 ½ inches apart (see Figure 1). Center the thickness gauge over the marking material in an area avoiding glass spheres and read the values of all three dial indicators. The location thickness measurement is the average of the three dial indicators. Take one measurement at the beginning, middle, and end of each one mile section of line type (i.e. color, solid, broken/skip). The average of the three location measurements shall be used for acceptance of the one mile section of line type.

12. Inspecting Thermoplastic Pavement Markings
Audible/Vibratory Markings
Retroreflectivity
300 – white and yellow
Thickness
Base Line: 79 to 120 mils
Requires transverse bar/bump/cookie – min height 0.45 inches or 450 mils, including base line
The audible vibratory markings and wet weather markings have a different base line thickness. Audible and vibratory markings base line thickness is 79 to 120 mils and requires transverse audible bars (bumps/cookies). Minimum height on audible bars: inches, includes base line.
4.1 Thickness:
Measure the thickness of thermoplastic striping using an apparatus
employing three dial indicators with the measuring points spaced 2 ½
inches apart (see Figure 1). Center the thickness gauge over the marking
material in an area avoiding glass spheres and read the values of all three
dial indicators. The location thickness measurement is the average of the
three dial indicators. Take one measurement at the beginning, middle,
and end of each one mile section of line type (i.e. color, solid,
broken/skip). The average of the three location measurements shall be
used for acceptance of the one mile section of line type.
Thermo Cookie
Thermo Bump

13. Inspecting Thermoplastic Pavement Markings
Wet Weather Markings
Retroreflectivity
300 – white, 250 – yellow
Thickness Measurements
Profile Marking: 155 mils min. for profile height at one inch on center, base line of 35 to 50 mils height
Flat line – 100 to 150 mils thickness
Thickness and Dimensions of Markings: For flat thermoplastic markings with wet reflective elements, provide a thickness of 0.10 to 0.15 inches when measured above the pavement surface.
For profiled thermoplastic markings, provide a minimum height of inches for the profile when measured above the pavement surface. Provide a baseline thicknessof of to inches. Provide individual profiles across the full width of the marking at approximately 1.0 inch on center with a space between profiles of to inches.
Dimensions of Audible Bumps: Apply the raised bump with a profile such that the leading and trailing edge are sloped at a sufficient angle to create an audible and vibratory warning.
Bumps on shoulder and centerline markings shall have a minimum height of 0.45 inches, including the base line. The height shall be measured above the pavement surface, after application of reflective elements. Bumps shall have an approximate length of 2.5 inches. Bumps may have a drainage channel, the width of each drainage channel will not exceed 1/4 inch at the bottom of the channel. The longitudinal distance between bumps shall be approximately 30 inches.
Retroreflectivity: Apply white and yellow traffic stripes and markings that will attain an initial dry retroreflectivity of not less than 300 mcd/lx·m2 and not less than 250 mcd/lx·m2, respectively, and also attain an initial wet retroreflectivity of not less than 150 mcd/lx·m2 and not less than 125 mcd/lx·m2, respectively. ASTM E2177 shall be used to measure the wet retroreflectivitity. The dry retroreflectance of the white and yellow pavement markings at the end of the three year service life shall not be less than 150 mcd/lx·m2, and also the wet retroreflectivity at the end of the service life shall not less than 75 mcd/lx·m2.
4.1 Thickness:
Measure the thickness of thermoplastic striping using an apparatus
employing three dial indicators with the measuring points spaced 2 ½
inches apart (see Figure 1). Center the thickness gauge over the marking
material in an area avoiding glass spheres and read the values of all three
dial indicators. The location thickness measurement is the average of the
three dial indicators. Take one measurement at the beginning, middle,
and end of each one mile section of line type (i.e. color, solid,
broken/skip). The average of the three location measurements shall be
used for acceptance of the one mile section of line type.
Wet Reflective Elements in flat line
Profile Marking

14. Inspecting Work Zone Signs
We will move to Inspecting Work Zone Signs

15. Work Zone Signs Sign supports in compliance with:
Vendor drawing on QPL
Design Standards Series
Specs – Section 102
There are three common places to look for information on work zone sign supports. The Vendor Drawings on the QPL, the Design Standards – Index 600 Series and Specifications – Section 102.
Install sign supports in accordance with Vendor drawings on QPL, Design Standards, Index 600, and Specifications, Article

16. Work Zone Signs QPL # labeled on sign support
Make sure that the QPL number for sign support is labeled per Specifications, Article for both post-mounted and portable.

17. Work Zone Signs Verify work zone sign supports are on QPL
QPL Website:
Verify that the labeled work zone sign supports are on the QPL. Here is the website link and a snapshot of what it looks like.

18. Work Zone Signs
Verify sign supports are installed in accordance with the Vendor Drawings on QPL
Verify that the sign supports are installed in accordance with the vendor drawings, portable or post mounted.

19. Work Zone Signs Verify Sheeting Retroreflectivity Specifications 994-5
ASTM-4956
80% of values in table
Specifications 102-9
ATSSA Quality Guidelines for Temporary Traffic Control Devices and Features
Sheeting retroreflectivity in accordance with Specifications, Article 994-5, ASTM D-4956, and 80 % of values in table.

20. Work Zone Signs
Design Standard Index #600, Sheet 6

21. Work Zone Signs Number of u-channel Posts depends on Sign Size 12
u-channels 3
u-channels
This is the table from Index 600, Sheet 6.
Number of u-channel posts depends on sign size

22. Work Zone Signs Clear height depends on Post size:
3 lb/ft up to 10 feet clear height
4lb/ft up to 12 feet clear height
Foundation Depth depends on post size:
4 feet for 3 lb/ft
4.5 feet for 4 lb/ft
Exceptions:
Foundation depth in rock
Soil plate not required in rock, asphalt and shoulder pavement, and sidewalk.
This is the table from Index 600, Sheet 6.
Clear height depends on post size
Foundation depth depends on post size
Soil plated required minimum 4 inches below ground – see exceptions in table for installing in asphalt roadway or shoulder or in rock.

23. Ground line at centerline of sign
Work Zone Signs
Clear Height
Bottom of Sign
10 feet for 3 lb/ft
12 feet for 4 lb/ft
Clear height depends on post size
7 foot mounting height required on all wz signs
Ground line at centerline of sign

24. Work Zone Signs Mounting height
Bottom of Sign
7 feet min
Measured from a line projected from the
edge of travel way
elevation

25. Work Zone Signs Spliced Post Mounted Supports
Stub Height
Design Std - Maximum Stub height is 4 inches
Vendor Drawing allows 0 to 4 inches from existing ground (cannot be below ground)
Stub Height > 4”
WRONG
Design Standards, Index 600, Sheet 6

26. Work Zone Signs Spliced Post Mounted Supports
Top Bolt
1 inch minimum from top of stub or cutting edge
Minimum 1 inch
Design Standards, Index 600, Sheet 6

27. Work Zone Signs Spliced Post Mounted Supports
Vendor Drawings require
Base Post in Front (traffic approaching)
Sign Post in Back
Sign Post
Base Post

28. Work Zone Signs Spliced Post Mounted Supports
Splice overlap
Vendor Drawings require 6 inches for both types
Minimum
6 inches overlap

29. Work Zone Signs Spliced Post Mounted Supports
Bolt Spacing
Vendor Drawings require 4 inches for both types
Bolts spacing should be 4”
WRONG

30. Work Zone Signs Spliced Post Mounted Supports
Same size posts for splice
Vendor Drawings require base post and sign post to be the same size.
WRONG

31. Work Zone Signs Post mounted Work Zone Sign Supports - Nucor Marion
Rib back
3 #/ft
4 #/ft

32. Work Zone Signs
Post mounted Work Zone Sign Supports
Franklin
Franklin

33. Work Zone Sign Supports Nucor Marion soil plate

34. Work Zone Sign Supports Franklin soil plate

35. Work Zone Sign Supports Nucor Marion splice detail - connectors

36. Work Zone Sign Supports Franklin splice detail - connectors

37. Work Zone Sign Supports
The project information sign shall be used when called for in the plans
4 #/ft spliced posts required

38. Work Zone Signs Portable sign supports do not require light or flag
Portable sign supports do not require light or flag. Per Index 600, only post mounted signs require light and flag.

39. Inspecting Temporary Traffic Control Devices

40. Temporary Traffic Control Devices
Sheeting Retroreflectivity
QPL # on device and light

41. Temporary Traffic Control Devices
Qualified Products List contains many products
Pavement Markings – Paint, Thermo, RPMs, etc.
Traffic Control Devices – Barricades, Drums, Warning Lights, CMS, etc.
Work zone sign supports – effective July 2007

42. Temporary Traffic Control Devices QPL Alleged Deficiency Form # 630-020-01

43. Miscellaneous MOT Issues

44. High Visibility Safety Apparel Index 600, Sheet 4

45. High Visibility Safety Apparel
All workers within Right-of-Way shall wear:
ANSI/ISEA Class 2 Apparel
Orange or Yellow/Green in Color
All flaggers within Right-of-Way shall wear:
Daytime - ANSI/ISEA Class 2 Apparel
Nighttime - ANSI/ISEA Class 3 Apparel
Orange or Yellow/Green in Color

46. Placement of Stripe
24 foot roadway – includes stripes

47. Placement of Stripe – Index 600
Striping layout for
3 – 12’ lanes:
5”, 11’7”, 12’, 11’7”, 5” = 36’
5” 11’7” ’ ’7” ”

48. Placement of Stripe
Index 518

49. Placement of Stripe – 11’7” from center to center of stripes2” 2”
11’7”
6 inch stripe
Placement of Stripe – 11’7” from center to center of stripes

50. Center to Center will be 11’7”
Placement of Stripe
Center to Center will be 11’7”

51. Questions? Contact Stefanie D. Maxwell, P.E.
(850)
Stefanie’s Hwy
Next Exit