North Carolinas Update Steve Kite, PE State Work Zone Engineer - - PowerPoint PPT Presentation

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North Carolinas Update Steve Kite, PE State Work Zone Engineer - - PowerPoint PPT Presentation

Mar 30, 2023 141 likes •406 views

2017 Carolinas Annual Meeting - Asheville North Carolinas Update Steve Kite, PE State Work Zone Engineer Agenda Items 1) ATSSAS Midyear Summary 2) NCDOTs MASH -16 Policy 3) Product Approval Process 4) WZ Supervisor, Installer,

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North Carolina’s Update

2017 Carolina’s Annual Meeting- Asheville Steve Kite, PE State Work Zone Engineer

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Agenda Items

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1) ATSSA’S Midyear Summary 2) NCDOT’s MASH-16 Policy 3) Product Approval Process 4) WZ Supervisor, Installer, Flagger “Self Certifications” 5) WZ Performance Pavement Marking “I-85 Spot Light” Project

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ATSSA Mid-Year Temporary Traffic Control Committee Update

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MASH-16 Update

  • ATSSA has sent AASHTO letter to discuss “Grandfathering” of Devices,

Categorization of Devices, Sampling versus Testing, Generic Devices

  • FHWA is no longer in charge of device approval, States will now assume this role
  • FHWA reviews crash data and issues letters of “eligibility” for Federal

reimbursement

  • AASHTO is a bureauocratic organization with main focus on roadside hardware,

not temporary traffic control devices

  • AASHTO’S position in to NOT provide implementation “guidance” as FHWA has

done in the past.

  • State’s will have to assume the role for Product Approvals
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NCDOT “MASH-16” Policy

  • 1. NCDOT will recognize the Categorization of Products according to

NCHRP procedure

  • Category 1: Small Lightweight Devices (Manufacturer Self Certified)
  • Category 2: Potential Hazardous Devices with Minimal Vehicle

Velocity Discharge Devices (Ex: Barricades, Portable Sign Supports, Vertical Panels, Water filled Barrier, etc)

  • Category 3: Potentially Hazardous Devices with Significant Vehicle

Velocity Discharge Device (Ex: Portable Concrete Barrier, Steel Barrier, Water filled Barrier, Temporary Crash Cushions, Truck Mounted Attenuators, Break Away Sign Supports, etc.

  • Category 4: Trailer Mounted Devices
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NCDOT “MASH-16” Policy

Product Categories

  • All Category 1 and 2 devices will be “grandfathered” in as

approved under NCHRP 350. Unless a major modification has been made, no “retesting” of these devices are required

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NCDOT “MASH-16” Policy

Category 3 Devices: All Truck Mounted Impact Attenuators and Crash Cushions manufactured on or after January 1, 2019 must meet MASH-16 Crash Standards. Any device manufactured before this date may be used until January 1, 2030 provided they meet the requirement of the Standard Specifications, approved for use (APL) and accepted for use by the Engineer.

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NCDOT “MASH-16” Policy

All portable concrete, steel and water-filled barrier (used on roadways above 45 MPH) manufactured on or after January 1, 2020 must meet MASH-16 crash standards. Any of these devices manufactured before this date may be used through January 1, 2030 provided they meet the requirement of the Standard Specifications, approved for use (APL) and accepted for use by the Engineer.

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NCDOT “MASH-16” Policy

  • 3. Category 4 Devices: These devices were not tested in NCHRP 350

and its NCDOT’s position they don’t need to be tested according to the testing procedures in MASH-16.

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NCDOT Product Approval Process

  • 1. All New Products must be registered through the Statewide Product

APL Database with Natalie Roskam

  • 2. Once they’re registered, we are notified by Natalie’s group for a

recommendation within 2 weeks

  • 3. If the product meets our Specification, is approved in either Virginia
  • r South Carolina it’s automatically approved in NC
  • 4. If not approved in either of those States, then we’ll go to

“Provisional Approval” to evaluate it’s performance in the field

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Work Zone Supervisor “Certification”

  • 1. Work Zone Supervisor ‘Certification”
  • NCDOT no longer issuing cards or keeping records
  • Cards may be issued by the Training Agency
  • Certification documents provided by the Employer
  • 2. Work Zone Supervisor “Re-Certification”
  • Every 4 years as before based on the date when they were Certified
  • If initially Certified in either Virginia or South Carolina, this is good for 1
  • year. After that, must be Re-Certified in NC
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Work Zone “Self Certification” Program

  • 3. “Self-Certification” Trainers
  • Companies now allowed to “self certify” Work Zone Supervisors with their

internal trainers provided they only train their own employees and the following is met

  • The “Self-Certified” Trainer shall be a Certified Work Zone Supervisor

with a minimum of 8 years of highway/traffic control experience. Must also have a minimum of 4 years as a Work Zone Supervisor.

  • The “Self-Certified” Trainer will be required to “recertify” with an outside agency

every 4 years.

  • Each company desiring to train and certify work zone supervisors shall

submit their trainer/s as well as their training materials and exams to the Work Zone Traffic Control Section for approval

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Work Zone Supervisor “Self Certifications”

  • 4. Exam Requirements for Self Certification
  • Work Zone Supervisor Exam (Minimum of 100 Questions)
  • Minimum of 25 Questions on Specifications and RSD’s
  • Minimum of 25 Questions on Rural and Interstate Resurfacing Provisions

as well as “best practices” for installation and removal of lane closures

  • Minimum of 30 Questions on use of Changeable Message Signs, WZ

Presence Lighting, Digital Speed Limit Signs, Sequential Flashing Lights, High Visibility Devices, Portable Traffic Signals and AFAD’s.

  • Minimum of 20 Questions on Transportation Management Plan proficiency
  • 80 is passing score
  • Retesting is permissible
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Work Zone “Installer” Certification

  • 1. Work Zone “Installer” Certification (Effective July 1, 2018 ??)
  • This is a new Certification for employees who install lane closures
  • NCDOT no longer issuing cards or keeping records
  • Cards may be issued by the Training Agency
  • Certification documents provided by the Employer
  • 2. Work Zone “Installer” Re-Certifications
  • Every 4 years as before based on the date when they were Certified
  • If initially Certified in either Virginia or South Carolina, this is good for 1 year.

After that, must be Re-Certified in NC

  • 3. “Self-Certification” for “Installers”
  • Companies now allowed to self-certify “Installers” with their internal trainers

provided they only train their own employees and the requirements for the Work Zone Trainer is met

  • Companies now allowed to “re-certify” “Installers” with their approved Work

Zone Trainers

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Work Zone “Installer”- Self Certification

  • 4. Exam Requirements for “Installer” Self Certification
  • Work Zone Installer Exam (Minimum of 50 Questions)
  • Minimum of 25 Questions on Specifications and RSD’s
  • Minimum of 15 Questions on “best practices” for installation and removal
  • f lane closures
  • Minimum of 10 Questions on use of Changeable Message Signs, WZ

Presence Lighting, Digital Speed Limit Signs, Sequential Flashing Lights, High Visibility Devices, Portable Traffic Signals and AFAD’s.

  • 70 is passing score
  • Retesting is permissible
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Work Zone “Flagger” Certification

  • 1. Work Zone “Flagger” Certification- Requirements same as it has

been in the past with a few changes

  • NCDOT no longer issuing Certification Cards or keeping records
  • Cards may be issued by the Training Agency
  • Certification documents provided by the Employer
  • 2. Work Zone Flagger “Re-Certifications”
  • Every 4 years as before based on the date when they were Certified
  • If initially Certified in either Virginia or South Carolina, this is good

for 1 year. After that, must be Re-Certified in NC

  • May be “Re-Certified internally by approved internal Work Zone

Trainer

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Work Zone “Flagger”- Self Certification

  • 3. Exam Requirements for “Flagger” Self Certification
  • Work Zone Flagger Exam (Minimum of 50 Questions)
  • Minimum of 20 Questions on Specifications and RSD’s
  • Minimum of 15 Questions on “best practices” for flagging traffic for

standard lane closures, haul roads crossings and shoulder operations

  • Minimum of 15 Questions on use of proper personal protective equipment,

communication, positioning, hand signaling, escape, night flagging, portable signals and AFAD’s.

  • 70 is passing score
  • Retesting is permissible
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Work Zone “Performance” Pavement Markings

  • 1st installed application of Work Zone Performance Pavement Markings used
  • n I-3802B (I-85 Rowan County)
  • Polyurea with “Visi-Max” installed in October 2016 by RoadMark Inc.
  • All lines 6” Widths
  • Retroreflectivity of markings were scanned by independent Mobile Scan

companies

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Work Zone “Performance” Pavement Markings

Material Northbound Southbound Overall Ave 6 Month Req White Edgelines 267 241 254 275 (-21) White Skips 261 281 271 275 (-4) Yellow Edgelines 172 228 200 150 (+50) Retroreflectivity after 4 months (March 1, 2017)

  • Initial Readings not taken (Need to work on

communicating this to our inspection staff)

  • 1 Snowplow Event in January 2017
  • The white material is slightly below the 6 Month

requirement

  • The yellow material is 50 points above the required

minimum

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Work Zone “Performance” Pavement Markings

Picture taken September 28, 2017

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Work Zone “Performance” Pavement Markings

Picture taken September 28, 2017

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Work Zone “Performance” Pavement Markings

Picture taken September 28, 2017

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Work Zone “Performance” Pavement Markings

Retroreflectivity after 10 months (Scanned August 26, 2017)

  • Note the 10 month Retroreflectivity readings are higher in

than the 4 month readings

  • The Retroreflectivity readings are all more than 100 points

higher than the required minimum at the end of 12 months Material Northbound Southbound Overall Ave 6 Month Comparison 12 Month Min White Edgelines 260 283 272 (+18) 254 150 (+122) White Skips 336 287 312 (+41) 274 150 (+162) Yellow Edgelines 215 243 229 (+29) 200 100 (+129)

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“Standard” Work Zone Pavement Markings

Picture taken September 28, 2017

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“Standard” Work Zone Pavement Markings

Picture taken September 28, 2017

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Work Zone “Standard” Pavement Markings

Retroreflectivity after 1 month (Scanned August 26, 2017)

  • The Retroreflectivity readings are shown below in chart
  • The white material averaged together meets the Retro

Requirement (225) according to Table 1205-7

  • The Yellow material is 47 points below the Retro

Requirement (200) according to Table 1205-7

  • The Performance Pavement Markings at 1 year exceed

the initial retroreflectivity of the Standard Paint Material Northbound Southbound Overall Ave Retro Reqmts according to Table 1205-7 WZPM 1 YR Ave White Edgelines 236 200 218 225 272 White Skips 272 192 232 225 312 Yellow Edgelines 179 153 153 200 229

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Questions/Comments?

Contact Information Steve Kite, PE, State Work Zone Engineer Telephone: (919) 814-4937 Email: skite@ncdot.gov