Introduction to Introduction to GIS In Pavement ManagementGIS In Pavement Management

Introduction to Introduction to GIS In Pavement ManagementGIS In Pavement Management

Alex Rocco and Barry WaiteAlex Rocco and Barry WaiteCity of Carson City of Carson Geographic Services DivisionGeographic Services Division

100 miles of street has a replacement value of approximately $42,000,000.

100 miles * 5280 ft/mile x 36ft ~ 19,000,000ft2

19,000,000ft2 * 1 yd2 / 9ft2 ~ 2,100,000 yd2

Average replacement value per yd2 ~ $20.00

$20.00 / yd2 * 2,000,000 yd2 = $42,000,000

Good planning and preventative maintenance saves $$$.

Is Is Pavement Management Important? Management Important?Is Is Pavement Management Important? Management Important?

Con

ditio

n

Time

40% Drop

75% Time40% Drop

12% Time

$1.00 spent herewill cost

$4.00 - $8.00here

Source: American Public Works Association

Pavement Deterioration CurvePavement Deterioration CurvePavement Deterioration CurvePavement Deterioration Curve

Pavement DeteriorationPavement DeteriorationPavement DeteriorationPavement Deterioration

Crop circles?

Tanks a lot!Tanks a lot!Tanks a lot!Tanks a lot!

M1A1 Abrams Tank

Pavement DeteriorationPavement DeteriorationPavement DeteriorationPavement Deterioration

Not a trash truck

Pavement DeteriorationPavement DeteriorationPavement DeteriorationPavement Deterioration

Bradley Fighting Vehicle

Better visualization of current and expected conditionsBetter visualization of current and expected conditions Better analysisBetter analysis Aggregate with other geographic featuresAggregate with other geographic features Notify residents and businessesNotify residents and businesses Avoid shotgun approachAvoid shotgun approach Better CIP planning Better CIP planning Reduce duplication of dataReduce duplication of data

Traffic AccidentsTraffic Accidents

Traffic VolumeTraffic Volume

RoadsRoads

Structural DataStructural Data

Why integrateWhy integrateGIS and Pavement Management?GIS and Pavement Management?

Why integrateWhy integrateGIS and Pavement Management?GIS and Pavement Management?

TM

Data Collection

Data Analysis

Reporting/Mapping

Fundamental Elements ofFundamental Elements ofPavement Management SystemsPavement Management Systems

Fundamental Elements ofFundamental Elements ofPavement Management SystemsPavement Management Systems

Relate the data to any geographic feature Calculate pavement area for any geography Overlay projects with other activities

to avoid conflicts Cluster projects

AnalysisAnalysisAnalysisAnalysis

TM

Avoid maintaining a street in 1998 and then anadjoining street in 1999.

Resurface and repair whole subdivisions

Simplify and reduce the cost of notifications

Cluster ProjectsCluster ProjectsCluster ProjectsCluster Projects

Clustering

CIPCIPCIPCIP

Avoid maintaining a street in 1998 and then thestorm drain under it in 1999.

CIPCIPCIPCIP

Oops!

Functional Classification Yearly Improvement Plans Pavement Condition Future Condition Traffic Volumes

MapsMapsMapsMaps

TM

MapsMapsMapsMaps

Functional Classification

Arterials

Tabular DataTabular DataTabular DataTabular Data

MapsMapsMapsMaps

MapsMapsMapsMaps

Traffic Volumes

MapsMapsMapsMaps

Priorities Current conditions Recommended corrective action Long range plan

ReportingReportingReportingReporting

TM

Traffic Engineer

TrafficVolumes

Utilities

SewerWaterStorm

Maintenance

Minor Repairs

Engineering

Major ImprovementsNew Streets

Materials Engineer

Soils

Avoid Redundant Data CollectionAvoid Redundant Data CollectionAvoid Redundant Data CollectionAvoid Redundant Data Collection

Arc-node TopologyLinking GIS Linking GIS

and Pavement Managementand Pavement ManagementLinking GIS Linking GIS

and Pavement Managementand Pavement Management

GIS From To1 A St B St2 B St C St

1 2

PM From To1 A St B St2 B St C St

Arc-node TopologyLinking GIS Linking GIS

and Pavement Managementand Pavement ManagementLinking GIS Linking GIS

and Pavement Managementand Pavement Management

GIS From To1 A St B St2 B St C St

PM From To1 A St 500ft2 500 ft B St3 B St C St

1 2

Arc-node TopologyLinking GIS Linking GIS

and Pavement Managementand Pavement ManagementLinking GIS Linking GIS

and Pavement Managementand Pavement Management

PM From To1 A St 500ft2 500 ft B St3 B St C St

1 2 3

GIS From To1 A St 500ft2 500 ft B St3 B St C St

Arc-node TopologyLinking GIS Linking GIS

and Pavement Managementand Pavement ManagementLinking GIS Linking GIS

and Pavement Managementand Pavement Management

GIS From To1 A St B St2 B St C St

PMS From To1 A St C St

1 2

Roads Coverage

Concrete Asphalt Brick

Good Bad

2 lanes 4 lanes

The ProblemThe ProblemThe ProblemThe Problem

52

34

6

1

ARCS

A Solution is A Solution is Dynamic SegmentationDynamic Segmentation

A Solution is A Solution is Dynamic SegmentationDynamic Segmentation

1

52

34

6

0.0

5.57.0 10.5 15.0

100%

100%100%

75%

ROUTES

ARCS

Dynamic SegmentationDynamic SegmentationDynamic SegmentationDynamic Segmentation

0.0

15.0

2.0

Good

FairPoor

0.0

4.7

9.315.0

7.2

6.710.4 13.1

0.0

15.0

9.315.0

Resurface

Asphalt

Concrete

Dynamic SegmentationDynamic SegmentationDynamic SegmentationDynamic Segmentation

Geography Geography is the is the

Missing Link!!!Missing Link!!!

Geography Geography is the is the

Missing Link!!!Missing Link!!!

Better visualization of current and expected conditionsBetter visualization of current and expected conditions Better analysisBetter analysis Aggregate with other geographic featuresAggregate with other geographic features Notify residents/businessesNotify residents/businesses Avoid shotgun approachAvoid shotgun approach Better CIP planning Better CIP planning Reduce duplication of dataReduce duplication of data

Sound familiar?

Do as we say, not as we doDo as we say, not as we doDo as we say, not as we doDo as we say, not as we do

Make sure you or your consultant has a plan for integrating Make sure you or your consultant has a plan for integrating GIS and pavement managementGIS and pavement management

Use a consultant who has GIS staff in-houseUse a consultant who has GIS staff in-house Collect other data while collecting street conditionsCollect other data while collecting street conditions

SignsSignsSignalsSignalsManholes (personnel access covers)Manholes (personnel access covers)Water valvesWater valvesCatch basinsCatch basins

Visit other agencies who have been through this processVisit other agencies who have been through this process Do not allow tanks on your streetsDo not allow tanks on your streets Eat your vegetablesEat your vegetables

Let’s Go!Let’s Go!Let’s Go!Let’s Go!