1Operations DivisionApril 29, 2010

Pavement MarkingsPolicy, Measures, Targets

• Policy:• Provide appropriate pavement markings to

provide presence and retroreflectivity on all highways 365 days a year

• Measures:• Percentage of system compliant with Tech Memo • Minimum Retroreflectivity (80 or 100

mcd/m2/lux )• Cost and productivity• Customer Satisfaction

• Targets:• 100% compliance with TM by December 2010• 100% of line-miles meeting minimum

retroreflectivity, or scheduled for replacement 2Operations DivisionApril 29, 2010

Compliant Roadways 99.7% of 36,900 Line-Miles Statewide

3Operations DivisionApril 29, 2010

% Compliant with Tech Memo for Material choice

Market ResearchPavement Marking Customer Satisfaction

Rating Scale 1-10

PO

SIT

IVE

NE

UT

RA

L

Source: Mn/DOT Omnibus Survey 2009 Omnibus Survey was not completed in 2007

4Operations DivisionApril 29, 2010

Maintenance Striping Business*

5Operations DivisionApril 29, 2010

* Does not include Pavement Messages

6Operations DivisionApril 29, 2010

Maintenance Striping Expenditures** Does not include Pavement

Messages

April 29, 2010 Operations Division 7

Maintenance Striping Expenditures** Does not include Pavement Messages

Construction Striping Mileage*

April 29, 2010 Operations Division 8

* Does not include Pavement Messages

April 29, 2010 Operations Division 9

Construction Striping Expenditures** Does not include Pavement Messages

April 29, 2010 Operations Division 10

Construction Striping Unit Costs** Does not include Pavement Messages

April 29, 2010 Operations Division 11

Construction Striping Unit Costs** Does not include Pavement Messages

April 29, 2010 Operations Division 12

Total Striping Mileage*(Construction + Maintenance)

*Does not include Pavement Messages

April 29, 2010 Operations Division 13

Total Striping Mileage*(Construction + Maintenance)

*Does not include Pavement Messages

Relative cost of pavement markingsTotal Construction Budget for 2009:

$359,724,702

Total Pavement Marking Construction Expenditures (including Temporary/Interim Markings, and Messages): $7,077,000

Percentage of total Construction Budget = 1.97%

Source: 2009 Average Bid Price Report

April 29, 2010 Operations Division 14

April 29, 2010 Operations Division 15

2009 Retroreflectivity Readings

April 29, 2010 Operations Division 16

Retroreflectivity Readings by Year

April 29, 2010 Operations Division 17

Summary• 99.7% Compliance with Tech Memo statewide• Customers are positive, but satisfaction numbers went

down and are nearing negative territory• Many more grooved and wet-reflective markings being

used, and unit costs for those are going down• Increase in Preventative Maintenance hampering

performance• Marking durability is poor on chip seals and seal coats

• New mixes of hot mix asphalt causing some marking adhesion issues

• We need to find ways to improve perception and performance of our markings

April 29, 2010 Operations Division 18

OTST Emphasis Areas• Draft Rumble Strips and StripE Tech Memo

• Just got approval of TEO Executive Committee

• Pavement Marking Tool Implementation continues

• Other research• LRRB Best Practices for Local Roads project

completed• Pavement Markings under challenging conditions

began

• Governor’s Initiative Safety Projects• 2011 MnDOT Construction Spec Book rewrite• Adoption of 2009 Federal MUTCD

Draft Rumble Tech MemoCombines two existing Tech Memos

Rumble Strips on Shoulders of Rural Trunk HighwaysEdgeline Rumble StripEs Guidance for Rural Trunk Hwys .

Requires the use of centerline rumble stripEs on all 2-way high-speed rural roadways on MnDOT trunkline

Also requires shoulder rumble strips on all rural roadways with a paved shoulder ≥ 4 feet

Edgeline rumble stripEs can be used in lieu of shoulder rumble strips in all cases, and centerline rumble stripEs on narrow surfaces

MnDOT Bike and Ped section has been involved

April 29, 2010 Operations Division 19

April 29, 2010 Operations Division 20

Pavement Marking Management Tool• Statewide, GIS-based

inventory of pavement markings that can be queried by MnDOT staff and the general public

• Contains installation and retroreflectivity info

• Working with the Center for Transportation Research and Education (CTRE) at Iowa State University

April 29, 2010 Operations Division 21

Tasks in PMMT Phase II• Pilot Training in two Districts has occurred• Historic installation and retroreflectivity

data will be loaded• Pavement marking data collection will be

automated for both internal and contractor striping trucks

• Central Office and District staff will be trained on how to use the Tool

• This will be fully implemented by mid-2011

Emerging issues/activitiesStrongly considering requiring all striping

contractors to have a data logging system (DLS) in their trucks as part of the Spec Book rewriteSome of our internal trucks already have these

Contracting out more retroreflectivity readingsMore inspection of pavement markingsMore analysis of wet-reflective marking effectivenessPopulate the Pavement Marking Management Tool

Considering the use and implementation of wider longitudinal markings per 2009 Federal MUTCD trend

April 29, 2010 Operations Division 22

April 29, 2010 Operations Division 23

Questions or comments?

Pavement Marking Performance ReportOffice of Traffic, Safety, and Technology (OTST)

April 29, 2010