Attachment B: WZTC QA Evaluation User Guide

The purpose of the WZTC QA Evaluation form user guide is to provide the evaluator with and overview of the WZTC QA Evaluation form.

WZTC QA Evaluation Form

• WZTC QA Evaluation (M-7002) updated 1/2017

• Applicable to any Temporary Traffic Control (TTC) Operations– Department– Construction– Permit– Utility– Municipal

• Applicable to any work duration – Short-Term Work– Long-Term Work – Mobile Work

WZTC QA Evaluation Form

• New form is designed to be objective

• Questions use verbiage to give the evaluator a clear choice and remove areas of interpretation

• Weighted scoring system

• Pass/Fail is 85%– On previous maintenance form 4.25=85%

• Auto-calculated scoring

Project Information

• Section to identify the operation:

Scoring Summary

• Scoring sections– Flagging (25%)– Signing (20%)– Channelizing Devices (20%)– PCMS/Arrow Board (10%)– Vehicles/Protection (10%)– Pedestrians (5%)– Markings/Delineation (5%)– Act 229 (5%)

Scoring Summary

• Each section has a weighted factor determined by level of importance

• Total Weighted Factor is adjusted by number of sections that are scored on the form– See next page for example

• Overall Scoring– Satisfactory: 85%-100%– Unsatisfactory: 0%-84%

WZTC QA Evaluation Form Scoring Summary Example

This is an example of an operation with flagging, TTC signs, and worksite protection

– Pink is the score given and score possible– Yellow is the weighted factor– Blue is the weighted score– Green is the calculated total score

QA Form: Questions With Automatic Unsatisfactory (AU) Rating

• Overall, 13 questions on the QA Form have an Automatic Unsatisfactory (AU) rating designation– Operational Requirements

• 4 questions– Flagging

• 6 questions– Vehicles/Worksite Protection

• 3 questions

• The high level safety questions are designated with an AU rating

Contacts

• Contacts section

WZTC QA Evaluation Definitions and Notes

• This section gives the WZTC Evaluator additional information to conduct the WZTC QA Evaluation

QA Form: Operational Requirements Section

• Consists of four basic Yes/No questions– These questions do not count towards the overall score

but will result in an AU if answered ‘No’

Operational Requirements Questions

Question 1:Is there a TTC Plan present on the operations?

Answer:A Custom TTC Plan, Publication 213 (or applicable pages from Publication 213), or Manual on Uniform Traffic Control Devices (MUTCD)(or applicable pages from MUTCD).Note: Can be hard copy or electronic

Operational Requirements Questions

Question 2:Is the appropriate setup being utilized?

Answer:This question is not asking if the correct PATA or TA is being utilized. It is asking in the correct setup is being utilized given the location and type of work.• Example: A crew working on an interstate should

not be using a conventional highway PATA or TA.

Operational Requirements Questions

Question 3:Does the Custom TTC Plan and all modifications to the Custom TTC Plan have approval from the Department's District Traffic Unit?

Answer:All customs plans and modifications must have DTU approval.Note: Signature is not required for approval

Operational Requirements Questions

Question 4:Are the TTC devices approved for use?

Answer:Devices must be found in Publication 35 (Bulletin 15) or approved by some other source (e.g. FHWA)

WZTC QA Evaluation Form Scoring Sections

Sections to be evaluated for a score:

I- FlaggingII – SignsIII – Channelizing DevicesIV – PCMS/Arrow BoardV – Vehicles/Worksite ProtectionVI – PedestriansVII – Markings/DelineationVIII – Act 229

Section I: Flagging

• Weighted Factor 25%

• 10 Yes/No questions worth 50 points– Scoring example for Yes/No questions on next page

• 6 of 10 questions have an AU Rating Designation

Example: Yes/No Questions

• Example: Yes/No Question

• Answer:– Yes (5): Enter 5/5 in boxes to the right– No (AU): Enter 0/5 in boxes to the right (AU = 0)

• Check AU box when answering ‘No’ on AU questions– Provide comments regardless of answer– Check N/A if question does not apply

• All other Yes/No questions follow same procedure

Section II: Signs

• Weighted Factor 20%

• 12 Percentage questions worth 60 points total– Scoring example for percentage questions on next page

• 0 of 12 questions have an AU Rating Designation

Example: Percentage Question

• Example: Percentage Question

• Answer:– If five signs are present in the field and six signs are

required as per the TTC plan, scoring is as follows:• 5(signs present)÷6(signs required)=83.3% Score = 3

– Enter 3/5 in boxes to the right– Provide comments regardless of answer– Check N/A if question does not apply

• All other percentage questions follow the same procedure

Section III: Channelizing Devices

• Weighted Factor 20%

• 12 Percentage questions worth 60 points– Scoring example for percentage questions on next page

• 0 of 12 questions have an AU Rating Designation

Example: Percentage Question

• Example: Percentage Question

• Answer:– If the TTC plan requires 2 tapers with 6 devices per taper

there would need to be 12 devices set up in the field. However, if only 11 devices are present in the field, scoring is as follows:

• 11(devices present)÷12(device required)=91.7% Score = 4– Enter 4/5 in boxes to the right– Provide comments regardless of answer– Check N/A if question does not apply

• All other percentage questions follow the same procedure

Section IV: PCMS/Arrow Board

• Weighted Factor 10%

• 12 Yes/No questions worth 60 points

• 0 of 12 questions have an AU Rating Designation

Section V: Vehicles/Worksite Protections

• Weighted Factor 10%

• 7 Yes/No questions worth 35 points

• 3 of 7 questions have an AU Rating Designation

Section VI: Pedestrians

• Weighted Factor 5%

• 2 Yes/No questions worth 10 points

• 0 of 2 questions have an AU Rating Designation

Section VII: Markings/Delineations

• Weighted Factor 5%

• 5 Yes/No questions worth 25 points

• 0 of 5 questions have an AU Rating Designation

Section VIII: Act 229

• Weighted Factor 5%

• 3 Yes/No questions worth 15 points

• 0 of 3 questions have an AU Rating Designation

Any Questions?

Call Ryan Palman 717.787.6993

Email Ryan Palman rpalman@pa.gov