2007 PAVEMENT MARKING ACTIVITIES AND PERFORMANCE April 25

2007 PAVEMENT MARKING ACTIVITIES AND PERFORMANCE April 25, 2008 Operations Division 1

PAVEMENT MARKING SUMMARY µ µ Customer Satisfaction ¯ Customers are positive but not completely satisfied ¯ Continue to investigate new materials and methods to improve visibility, especially at night and wet weather conditions Pavement Marking Tech Memo Compliance: ¯ The Tech Memo expired in December 2007 ¯ New Tech Memo issued soon ¯ 99. 7% compliant April 25, 2008 Operations Division 2

PAVEMENT MARKING SUMMARY (Continued) µ Pavement Marking Performance: ¯ Pavement ¯ Proposed µ Marking Inventory System plan for ’ 08 measuring Central Business Activities: ¯ Material ¯ Central Costs are rising sharply Business generating savings through efficiencies and identified best practices April 25, 2008 Operations Division 3

PAVEMENT MARKINGS OUTLINE µ Importance of Pavement Markings µ Pavement Marking Policy, Measures, Targets µ Research µ Central Business Activities µ Construction Activities April 25, 2008 Operations Division 4

IMPORTANCE OF PAVEMENT MARKINGS µ Market research µ Supports TZD by improving traffic safety µ Driving population is aging µ Recent research April 25, 2008 Operations Division 5

MARKET RESEARCH Pavement Marking Customer Satisfaction Rating Scale 1 -10 Positive Acceptable = 8 7 Neutral April 25, 2008 Operations Division From Omnibus Survey was not done in 2007 6

PAVEMENT MARKINGS POLICY, MEASURES, TARGETS µ Policy: ¯ µ Provide appropriate pavement markings to provide presence and retro-reflectivity (RR) on all highways 365 days a year. Measures: Percent of system compliant with Tech Memo requirements ¯ Minimum Retro-reflectivity ( 80 -100 MCD/m 2/lux ) ¯ Cost and productivity ¯ Customer Satisfaction ¯ µ Targets: 100 Percent compliant with TM by Dec 2008 ¯ 100 Percent line miles meeting minimum RR or scheduled for replacement ¯ April 25, 2008 Operations Division 7

PAVEMENT MARKING TECH MEMO Technical Memorandum 03 -08 -T-03 “Mn/DOT Policy for Pavement Marking Operations” µ Issued May 2, 2003 and expired December 31, 2007. µ New Technical memorandum to be issued soon. µ With New Construction and Retrofit should have substantial compliance by 2008 µ April 25, 2008 Operations Division 8

NON-COMPLIANT ROADWAYS Need 25 Miles to Epoxy, 73 Miles to CL Tape/EL Epoxy 0. 3% of 36, 900 Line Miles State-wide April 25, 2008 Operations Division 9

NON - COMPLIANT ROADWAYS Need 12 Miles to Epoxy, 35 Miles to CL Tape/EL Epoxy 0. 3% of 16, 773 CL Miles State-wide Non-Compliant April 25, 2008 Operations Division 10

PAVEMENT MARKING RETRO-REFLECTIVITY µ The ability of the pavement markings to reflective light back to its source. ¯ µ Headlights bounce off of tiny glass beads directly back to the driver instead of scattering. Wear (vehicles, weather) and Tear (snow plows) reduces Pavement Marking Retro-reflectivity Comparison 1200 800 300 100 40 mcd/m 2/lux April 25, 2008 Operations Division 11

2007 RETRO-REFLECTIVITY TOTAL READINGS 6, 465 Total Line Miles read in 2007 April 25, 2008 Operations Division 12

RETRO-REFLECTIVITY ISSUES µ Concentrating more on markings with suspected deficiencies. µ Incomplete and uneven coverage of projects and striping crews. µ Increase in Preventative Maintenance hampering performance Crack sealing and patching over markings ¯ Marking durability poor on chip seals ¯ Chip Seal markings that look good are still measuring low ¯ April 25, 2008 Operations Division 13

RETRO-REFLECTIVITY PLAN µ Sampling plan to measure the health of the state-wide pavement marking system. µ Increase the use of Handheld readings on new projects and 2 L 2 W roads. µ Timely reporting from contractors and Mn/DOT crews. µ Researching solutions to preventative maintenance issues including literature review. µ State-wide Pavement Marking Inventory System. April 25, 2008 Operations Division 14

RETRO-REFLECTOMETER READING PLAN µ Improve District confidence in data and prove effectiveness of equipment and procedures. µ Establish a shared state-wide pavement marking inventory system. µ Resolve installation issue prior to payment. April 25, 2008 Operations Division 15

PROPOSED STATE-WIDE PAVEMENT MARKING INVENTORY SYSTEM (PMIS) July 2008 Contract Completion. µ May 7, 2008 Statewide Training and District Feedback. µ April 25, 2008 Operations Division 16

PMIS CAPABILITIES & BENEFITS µ Inventory of pavement markings in the State µ Easy access to retro-reflectivity data state-wide µ Easy access to installation history statewide µ Quick assessments of pavement markings state-wide µ Correlation between planned striping and planned construction activities April 25, 2008 Operations Division 17

PAVEMENT MARKING RESEARCH PROJECTS µ Wider Markings µ Rubber Snow Plow Blades µ Wet Reflective Markings µ Rumble Strip. Es µ Late Season/Cold April 25, 2008 Operations Division Weather Markings 18

CENTRAL STRIPING BUSINESS LINE MAINTENANCE µ Saved $2, 234, 089 in 2007 µ 2005 to 2007 outsourcing pavement marking maintenance in Metro area to increase the efficiency of in-house crews. µ Material Costs increasing due to increase in fuel costs. April 25, 2008 Operations Division 19

CENTRAL STRIPING BUSINESS LINE MAINTENANCE µ µ µ Material cost reduction ¯ Started in 2003 ¯ Reduced line thickness for liquid markings from 15 to 12 mils. ¯ Reduced glass beads in epoxy from 30 lbs/gal to 15 lbs/gal. Latex Performance ¯ Performing similarly at 12 and 15 mils. Epoxy Performance ¯ Performing similarly at 12 and 15 mils. April 25, 2008 Operations Division 20

MAINTENANCE STRIPING BUSINESS* * Does not include Pavement Messages April 25, 2008 Operations Division 21

MAINTENANCE STRIPING EXPENDITURES* * Does not include Pavement Messages April 25, 2008 Operations Division 22

Expenditures MAINTENANCE STRIPING COSTS PER YEAR Year April 25, 2008 Operations Division 23

MAINTENANCE STATE-WIDE STRIPING & SPENDING* April 25, 2008 Operations Division 24 * Does not include Pavement Messages

CONSTRUCTION STRIPING BUSINESS* * Does not include Pavement Messages April 25, 2008 Operations Division 25

CONSTRUCTION STRIPING EXPENDITURES* April 25, 2008 * Does not include Pavement Messages Operations Division 26

TOTAL STRIPING BUSINESS* (Construction + Maintenance) * Does Not Include Pavement Messages April 25, 2008 Operations Division 27

TOTAL STRIPING EXPENDITURES* (Construction + Maintenance) April 25, 2008 * Does not include Pavement Messages Operations Division 28

PAVEMENT MESSAGE BUSINESS April 25, 2008 Operations Division 29

PAVEMENT MESSAGE EXPENDITURES April 25, 2008 Operations Division 30