Asset

Management

Tools

Sign, Pavement Management and

Pavement Markings

Zachary Hans, P.E. for

Neal Hawkins, P.E. and Omar Smadi, Ph.D.

2009 Iowa County Engineers Conference

Sign Management

Maintaining Minimum Sign

Retroreflectivity

Revision 2 to the 2003 MUTCD

FHWA adopted Jan 22, 2008

Compliance Dates

• Jan 22, 2012 – jurisdiction shall use an assessment or management method to maintain sign retroreflectivity

• Jan 22, 2015 – compliance with minimum retroreflectivity for regulatory, warning and ground mounted guide signs (except street name signs)

• Jan 22, 2018 – compliance with minimum retroreflectivity for overhead guide signs and street name signs

Assessment or Management Methods

• Visual Nighttime Inspection

• Measured Sign Retroreflectivity

• Expected Sign Life

• Blanket Replacement

• Control Signs

• Other Methods

Sign Inventory

Location as part of

software tool

Plug the GPS unit into a USB port.1.

Run the GPS Info program2.

Determine the COM Port number3.

Select the “Scan Com Port” button and the software will identify the correct COM port for you. Record the COM

port which says “GPS Receiver” which in this example is COM 5. Click “OK” to exit.

Location as part of

software tool

To test if the GPS is working, click the “Start GPS” button.

4.

If the GPS is working, you will see scrolling text

Select the “GPSInfo” button to see sattelite status and GPS fix. After this, please exit the program.

Database:

LOCATION:

Maintenance District:6 districts

Garage:110 garages

System Class:interstate

iowa route

us route

Route Number:all applicable routes

Ramp:further choice would include "secondary" route

Longitude, Lattitude:populate "X" and "Y" fields

Milepost:choose milepost based on route information above

Offset:identify offset to milepost (where longitudinally)

POSITION:

Direction of Travel:with milepost

against milepost

Side of Road:left

right

median

overhead

comment

Lateral Offset (optional):input distance

measured in feet only

POSTS:

Post Size / Type: (post lengths are optional)Wood Posts

4" x 4" (lengths 10, 12, and 14 feet)

4" x 6" (lengths 16, 18, 20, 22, and 24 feet)

Square Steel Tubing (all 12 feet long)

1.5" x 1.5" x 1/8"

1" x 1" x 1/8"

2" x 2" x 1/8"

U-Shaped Delineator Posts

Type 1 (2 lbs/ft - Galvanized): lengths 8.5, 10, 12, and 14 feet

Type 2 (1.12 lbs/ft - Galvanized): lengths 6.5 and 8.5 feet

Type 3 (1.12 lbs/ft - Painted): length 6.5 feet

I-beam Steel Breakaway Posts (from Std RD-21A-variable lengths)

W6x9, W6x12, W6x15, and W8x18 (all have a stub post length of 2.5 ft.)

W8x21, W10x22, W10x26, and W12x26 (all have a stub post length of 3 ft.)

Other

Utility Pole

Truss / Cantilever

Comment

Number of Posts:choose number

Length of Posts:specify length

feet only

MANUFACTURING:

Sign Information:stock number (this entry can populate items below)

sheeting

message

size

blank material

warranty information

Option:implement bar code for all new signs

other field signs collected manually

SIGNS:

Date Installed:date

Sign Direction:choose orientation…

Sign Condition:rating system to be developed

Daytime Check:date

reflectivity (if taken)

Nightime Check:date

reflectivity (if taken)

Ownership:dot along with DOT sign number

other

Inspector:initials or name

Flag/Beacon/Etc.:yes, no or both

Management

functions:

Attribute-based Display of Sign Direction & Side of Road

Quality Control

• Identify

Gaps/Missing

Inventory

Display of Sign Type

or Sign Message

Ex. Stop Signs

Display of Sign Type

or Sign Message

Ex. Curve, Chevron

Goal: Provide an appropriate pavement

marking on all highways, 365 days per year.

Pavement Markings

• What is Pavement

Marking?

– Material

– Equipment

– Installation

– Operation

A FACTORY on WHEELS

(BIG or small)

Retroreflectivity – night time

Presence – day time

ChallengesRetroreflectivity and Presence

ChallengesWet reflective

Traffic

Road Maintenance Activities

$ 3.0/ft

$ 0.03/ft

Material Selection

Winter Maintenance Activities

2009 Smadi Hawkins

Pavement Marking Management

Measurement - Retroreflectivity

• handheld

• van

Paint Equipment

• variety

• tracking/recording

• standards

Pavement Marking Data

• General – Location (Route or GPS)

• Retroreflectivity – Existing or New

• Paint (binder) Application:

– Initial Retroreflectivity

– Type (beads and binder)

– Install date

– Quantities

– Operations (Speed)

– Weather

PAVEMENT MARKING

Pavement Marking ManagementINVENTORY

PAVEMENT

•AADT

•Miles

•Rural/Urban

•Condition

•Age

•Pvmt Type

SAFETY

•Location

•Frequency

•Type

PMMS Tool

Iowa PMMT (Spring 2008)

Iowa PMMT (Painted 2008)

Iowa PMMT (Fall 2008)

Pavement

Management

Pavement Management

in Iowa for Local Agencies

Why PMS?

• Limited Resources

• Staff Turnover

• Consistent decisions

• Structured / Objective process

• Benefits (improved condition)

PMS Inputs/Tools

• Condition Data

• Database (Data Integration-GIS/GPS)

• Performance Forecasting

• Decision Support Tools

GOOD ???

BAD ???

GOOD or BAD ?

Automated Data Collection Tools

Pavement Condition Index (PCI)

• A combined condition index:• Road roughness (bumpiness)

• Rutting

• Cracking (transverse, longitudinal, alligator)

• Patching

• Faulting

• Calculated for Asphalt and Concrete roads

separately

• Scale of 0-100 with 100 being a new street

Pavement Condition Index (PCI)

• PCI Scale:

• Very Poor = PCI 0-20

• Poor = PCI 20-40

• Fair = PCI 40-60

• Good = PCI 60-80

• Excellent = PCI 80-100

Very Poor (PCI 0-20)

Poor (PCI 20-40)

Fair (PCI 40-60)

Good (PCI 60-80)

Excellent (PCI 80-100)

PCI Distribution

GIS Tools (IRI Distribution)

PCI Trends for Future $

PMS Software

Web Resources

http://www.ctre.iastate.edu/ipmp

http://webroads.intrans.iastate.edu

Questions

Contacts

Omar Smadi, smadi@iastate.edu

Neal Hawkins, hawkins@iastate.edu

Zach Hans, zhans@iastate.edu