Tools for Pavement Preservation

Tools for Pavement

ManagementTroy McCain Randy Shane

Pavement Coordinator Technical Marketing Manager City of Lakeland Asphalt Paving Systems

Pavement Management

• APWA definition in 1983• Pavement management is a systematic

method for routinely collecting, storing, and retrieving the kind of decision-making information needed to make maximum use of limited maintenance (and construction) dollars.

FY 2014 TOTAL 2.1 MILLION Expenses for personnel and

equipment and material averages $450,000

390 centerline miles

PROGRAM BUDGET FY 14

Building A Vibrant Future Through Transportation Enhancements

CITY OF LAKELAND PUBLIC WORKS CONSTRUCTION & MAINTENANCE DIVISION

Personnel (Table of Organization) MicroPaver Software Reverse calls (Century 21) prior to

paving GIS (ARCMAP)GPS, ADA, Striping Pavement Strategies (Preservation)

PAVEMENT MANAGEMENT TOOLS

CITY OF LAKELAND PUBLIC WORKS CONSTRUCTION & MAINTENANCE DIVISION

2-Asphalt Patch Trucks1- Striping Crew

• Asphalt trucks perform routine maintenance along with utility cuts from various divisions

• Patch roads prior to microsurfacing• Striping Crew performs routine maintenance

as well as new construction • Do have a contractor on hand for some work.

Pavement Section TO

Began Utilizing 1999 with 632 lane miles

Continue to use along with ArcMap current 741 lane miles of streets

MICRO-PAVER SOFTWARE

CITY OF LAKELAND PUBLIC WORKS CONSTRUCTION & MAINTENANCE DIVISION

1. Inventory Definition 2. Pavement Inspection

(19 different pavement distresses) 3. Condition Assessment 4. Condition Prediction 5. Condition Analysis 6. Work Planning

MICRO PAVER PROGRAM

CITY OF LAKELAND PUBLIC WORKS CONSTRUCTION & MAINTENANCE DIVISION

Rating System

• The pavement condition index (PCI) survey is an example of a detailed survey method. It was developed by the U.S. Army Corps of Engineers, adopted by the American Public Works Association and ASTM International (formerly the American Society for Testing and Materials), and documented in ASTM D6433, Standard Test Method for Roads and Parking Lots Pavement Condition Index Surveys (ASTM 2009).

• The PCI methodology is a rating system that measures the pavement integrity and surface operational condition based on a 100-point rating scale.

• According to this methodology, the pavement network is first divided into branches (e.g., individual road), sections (e.g., segments with consistent work history), and sample units.

Pavement Condition

REVERSE CALLS

PRIOR TO RESURFACING

• Access addresses utilizing GIS• Use addresses to retrieve phone numbers

from billing system• Send out 1-2 weeks prior.• Have contractor place a second notice 24-48

hrs. of actual work. • Cost of 50 residents is around $15.00• .30 per number.

Capturing Number of RampsFuture Resurfacing

Attributes of Ramps

Striping Utilizing GPS

1991 2014

1991 Pavement Program

Pavement Management Strategies Used• #1 Surface Treatment (1991)• Cost Approximately $1.50 per sq.• Expectant life service of seven (7) years.• This is the application of one to three courses of

carrying size aggregate to the existing pavement. We have found this to be a very good surface maintenance product in the past. We discontinued using it in 1991 not because it wasn’t doing the job but due to citizen complaints about the loose aggregate and rough texture on the streets. Between 1985 and 1991, 88.5 lane miles were maintained using this method

Pavement Strategies

• #2 Slurry Seal• A mixture of an approved emulsified asphalt, mineral

aggregate, water and specified additives applied approximately 1/8” to 1/4” thick.

• Cost Approximately $1.20 per sq. yd.• Expectant life service of six (6) years.• The city of Lakeland used exclusively from 1971 to 1988. This

was proven to be very effective while it was being used. We quit using this product after 1988. The major drawback to this product is the length of time residents were required to keep their vehicles off the street which as an average of eight (8) to nine (9) hours

• Due to ADA stipulations we are again looking at this product.

Strategies

• #3 Micro-Surfacing

• “A blend of select crushed aggregate and sophisticated chemical formulation of asphalt cement, cationic emulsifiers, adhesives and latex applied approximately 3/8” thick.”

• “The City of Lakeland has used this pavement maintenance strategy for the since 1981

• Cost $1.22 (1986) per sq. yd. single surface (2013-- $2.07)• $1.77 (1986) per sq. yd. double surface (2013-- $3.25)• Expectant life surface of seven (7) years.• “We have found this product to be very effective both cost wise as well

as for public relations. Required to keep their vehicles off the street for a period of 1-2hours.

• Single surface is recommended for residential streets and double surface for collectors.”

• Double surfaces we have been averaging 10 years.

Projects Utilizing Microsurface

• We have in past used Micro as a “Band Aid” on areas where we submitted for CIP (Capital Improvement)

• Buena Vista St. (Preservation vs Mill/Pave)• Joker Marchant Stadium. Resurfacing of old

concrete runways.

Pavement Strategies UsedActual Work Performed

BUENA VISTA 4111 SQ YDS YEAR COST Surface Treatment 1983 $1,603 Double Micro 1996 $5,015 Cape Seal/Double Micro 2003 $13,607 Double Micro 2013 $12,086 30YRS $ 32,311

Estimated Cost to Mill and Overlay same street 2 times over 30 years

BUENA VISTA 4111 SQ YDS YEAR COST 1983 $ ------ 1996 $23,638 2003 $-------- 2013 $41,808 30YRS $65,446 VS 32,311 (Preservation) Saving of $33,135 for single street

Joker Marchant Stadium

Tigertown Complex

Concrete from RunwaysPerformed Cape Seal 1996

After Cape Seal Prior to Project.

Area prior to Micro

Same area after micro

Finished Project

1. Started requiring a three year guarantee verses the one year that we received in past.

2. Also be more proactive in calibration and testing of products.

3. 6% Polymer in Micro 4.Introduce some type of rejuvenator. Fog

seal/Reclamite 5. Look at Slurry product again along with scrub

seal/cape seal.

CITY OF LAKELAND PUBLIC WORKS CONSTRUCTION & MAINTENANCE DIVISION

PROPER PAVEMENT PRESERVATION IS AN ONGOING PROCESS

2. Calibration

3. Utilizing 6% Polymer (Left)

3. Tire Mark (6% on right.)

6% polymerDoubleMicro

Double Microsurface

4. Rejuvenator (cemetery)

Some light cracking present After treatment

5. Scrub Seal/Cape Seal

Review new ADA issues and how that will impact budget.

Increased cost for material decrease in available funds.

Future Concerns

CITY OF LAKELAND PUBLIC WORKS CONSTRUCTION & MAINTENANCE DIVISION

Full Depth Reclamation(FDR)

Cold in-place Recycling

QUESTIONS

CITY OF LAKELAND PUBLIC WORKS CONSTRUCTION & MAINTENANCE DIVISION