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A-1 A P P E N D I X A Original State DOt and Local Agency Survey
A-2 1. What are the most common reasons for pavement marking removal? 1. 2. 3. 2. Does your agency contract out for pavement marking removal or use in-house crews and equipment? Please explain the conditions of each. Contract out: Use in-house crews and equipment: Both contract out and in-house: 3. Does your organization have any standard practices or specifications for pavement marking removal? Yes No If yes, please provide a copy or a website address: 4. What types of pavement marking removal methods are used or have been used by your organization? Please list the status of the removal type (currently used, no longer used, experimental, never used) types of pavements or road surfaces where each type is used (HMA, PCC, surface treatment, etc.) and the types of marking removed (paint, thermoplastic, tape, epoxy, polyurea, MMA, etc.). Type of Removal Status of Removal Type Types of Pavements or Road Surfaces Types of Marking Material(s) Removed Water Blasting Grinding Sand Blasting Shot Blasting A Combination of Blasting and Grinding Masking (black markings, slurry or black tape to cover existing markings) Other (describe):
A-3 5. If your organization uses any masking technologies (black pavement markings, slurry or black tape) to cover existing markings, are they covered for temporary applications, permanent application, or a combination of both? Temporary: Permanent: Combination of Both: 6. If your organization no longer uses or have not used a type of removal, please explain why they are not used. 7. Are you aware of any emerging technologies in the field of pavement marking removal such as chemical systems or a combination of mechanical processes? Yes No If yes, please describe and/or provide a website link or more information. 8. Are there any removal technologies that you would like to try that you are not currently using? Yes No If yes, please describe which types you would like to use. 9. What are typical removal costs, listed by removal technique/road surface type/marking material? Type of Removal Types of Pavements or Road Surfaces Types of Marking Material(s) Removed Estimated Removal Cost ($/Line-mile) 10. What are typical production quantities for marking removal (time to remove a specific amount of marking)? List by removal technique/road surface type/marking material. Type of Removal Types of Pavements or Road Surfaces Types of Marking Material(s) Removed Estimated Production Rate (Line-miles/day)
A-4 11. Does your organization specify a production rate for pavement marking removal? If yes, please explain. Yes No 12. Are temporary work zone markings removed in a similar manner as permanent markings? Please explain. Yes No 13. When selecting markings for a work zone is the quality and cost-effectiveness of removal (and subsequent remnants/scarring) taken into consideration? Please explain. Yes No 14. In areas where construction or maintenance has occurred and the markings will not go back to their previous pattern are any steps taken (e.g., blending) to ensure the areas of removed marking are not still perceived to be acting as delineation (i.e., ghost markings)? Please explain. Yes No 15. Describe any environmental concerns or issues associated with pavement marking removal processes used by your organization. Indicate whether these issues are related to solid and hazardous waste, water quality, air quality, or other factors. Type of Removal Types of Pavements or Road Surfaces Types of Marking Material(s) Removed Describe Environmental Concerns or Issues by Marking Removal Process With respect to these environmental concerns or issues describe techniques or processes used to reduce potential environmental impacts associated with the removal processes, including the disposal of removed materials. Type of Removal Types of Pavements or Road Surfaces Types of Marking Material(s) Removed Describe Techniques or Processes Used to Reduce Potential Environmental Impacts for Each Process
A-5 16. Describe any worker/general public safety concerns or issues associated with pavement marking removal processes used by your organization. Indicate whether these issues are related to hazardous substances, noise, heavy equipment, traffic hazards, or another safety concern. Type of Removal Types of Pavements or Road Surfaces Types of Marking Material(s) Removed Describe Worker Safety Concerns or Issues by Marking Removal Process With respect to these worker safety concerns or issues describe techniques or processes used to reduce potential impacts associated with the removal processes, including the disposal of removed materials. Type of Removal Types of Pavements or Road Surfaces Types of Marking Material(s) Removed Describe Techniques or Processes Used to Reduce Potential Worker Safety Concerns or Issues for Each Process 17. On a scale of 1-10 (1=poor, 10=excellent and N/A denotes Not Applicable), rate the quality of the following pavement marking removal methods used by your organization for each of the listed criteria. If the rating is different for different road surfaces or marking types please indicate separately. Type of Removal Road Surface Marking Material Rating 1-10 or N/A Extent of Removal Level of Scarring Environmental Impact Cost- Effectiveness Production Rate Water blasting Grinding Sand blasting Shot blasting A combination of blasting and grinding Masking (black markings, slurry or black tape to cover existing markings) Other (describe):
A-6 18. Describe your organizationâs preferred removal technique and indicate whether this varies by marking or road surface type? 19. Is there a method you would prefer to use but do not due to environmental impact, cost, unavailability or some other factor? Please explain. 20. Discuss how much pavement damage (surface scarring) is acceptable to completely remove a marking. Are there acceptable threshold levels? Are traces of marking on the road surface acceptable if the majority of the marking is gone? Are there acceptable threshold levels? 21. Does your organization have any measurers of effectiveness to determine the quality of marking removal? (such as amount of scarring of the pavement, amount of marking material remaining, damage to joints or sealer) Yes No If yes, please describe. 22. Have you received any public comments about the removal of markings? Yes No If yes, please describe the types of comments (indicate whether the comments were positive, negative, or mixed). 23. Please describe past pavement marking removal experiences (either good or bad) that may be of benefit to this research. 24. Do you know of any other research projects that have evaluated pavement marking removal issues? Yes No If yes, please describe and/or provide a website link.
