Asset Management

Louw Kannemeyer

South African Road Network

Un-Proclaimed Roads = Public roads not formally gazetted by any Authority

Authority Paved Gravel Total

SANRAL 18,247 0 18,247

Provinces - 9 46,099 136,640 182,739

Metros - 8 51,682 14,461 66,143

Municipalities 37,691 302,158 339,849

Total 153,719 453,259 606,978

Un-Proclaimed (Estimate) 140,000 140,000

Estimated Total 153,719 593,259 746,978

South Africa has the 10th Longest Total and 18th Longest Paved Road Network in the World

Roads Represents one of the largest public

infrastructure investments in most

countries

RSA Road Replacement Cost

>R2 Trillion

Sunninghill

Houghton

Eish !!!

How Did This Happen ?

Why is it Happening – Pavement Design ?

0

20

40

60

80

100

2008 2013 2018 2023 2028

Year

Ro

ad

Co

nd

itio

n Good

Fair

Poor

Very Poor

Maintenance Actions

No Maintenance

Moisture Ingress

(Typically Designed for Traffic Expected over 20-30 Years)

Road Deterioration due to Traffic Loading &

Environment

SA Pavement Design Requires Performance of Preventative Maintenance

Northern

Hemisphere

Waterproof

Layer

Local Street

Farm To Market

Typical National / Interstate Road

Increased Number of Heavy Axles

Repetitions over 20-30 year Design

Life

South Africa

Why is it Happening – Pavement Design ?

(10 to 40 mm) (100 to 400 mm)

7

Why is it Happening – Pavement Age

Please Note: 75% of Network Older than Original 20 Year Design Life

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011

Na

tio

na

l R

oa

d N

etw

ork

Le

ng

th (

Ca

rria

ge

wa

y k

m)

Year

Pavement Age Trend

>25 yrs 21-25 yrs 16-20 yrs 11-15 yrs 6-10 yrs 0-5 yrs8

Why is it Happening – Axle Loads

Increased Axle Load

Decreasing

Layer

Strength

Damage Located in Weaker Layers

Deeper Down in the Pavement Structure

Why is it Happening – Tire Pressure

Increased

Tire Pressure

Decreasing

Layer

Strength

Damage Located in Surface Layers

New Tire Technology

Increased Tire Pressure

PORT SHEPSTONE

CHIPINGE

DURBAN

BEIRA

FRANCISTOWN

GABORONE

WINDHOEK

WALVISBAY

KEETMANSHOOP

BLOEMFONTEIN

ROUXVILLE

WEPENER

KLERKSDORP

ZEERUST

JOHANNESBURG MAPUTO

LADYSMITH

VOLKSRUST

EAST LONDON

PORT ELIZABETH MOSSEL BAY

OUDTSHOORN

CERES

CAPE TOWN

MESSINA

TZANEEN

SOMERSET

WEST

PRETORIA

Wet (>1000 mm/yr)

Moderate (500 – 1000)

Dry (< 500 mm/yr)

Where is it Happening – Rainfall Zones

0

20

40

60

80

100

2008 2013 2018 2023 2028

Year

Ro

ad

Co

nd

itio

nWhat Is The Price We Pay – Government

Repair Cost = X / km

Good

Fair

Poor

Very Poor

3-5 Years

Repair Cost = 6X / km

5-8 Years

Repair Cost = 18X / km

(Ratio 1:6)

(Ratio 1:18)

Please Note: Typical Costs for 11.4m Wide Road in Flat Terrain

Very Poor Condition Poor Condition Good Condition

Good Poor

R 0

R 2

R 4

R 6

R 8

R 10

R 12

R 14

R 16

R 18

R 20

0 2 4 6 8 10 12 14 16

International Roughness Index (m/km)

Ro

ad

Us

er

Co

st

(R/k

m)

Toll Class 1

Toll Class 2

Toll Class 3

Toll Class 4

Based on HDM-4 Modeling

What Is The Price We Pay – Road User

Typical Life Cycle of a Road in South Africa ?

New Road - Deterioration over

time due to Traffic Loading &

Environment

NO Preventative Maintenance

- Crack Sealing

- Cleaning Drainage Structures

- Cutting of Grass

What Is The Solution – Automatic Pothole Patching?

Nooooooo…. Potholes are the symptom

not the cause…

If we strive to become best pothole repairers in

the world .. Then we have lost the plot ...

What Is The Solution – Preventative Maintenance !

SANRAL Routine Maintenance

Cost

- Crack Sealing, Cleaning Drainage

Structures, Cutting of Grass

- R 6.50 m2 / year

SANRAL Reseal Cost

- R70 – R130 m2 / 10 year

SANRAL Pothole Repair Cost

-R 700 – R1500 m2

-SANRAL In-situ Recycle

-R 250 – R500 m2

0

20

40

60

80

100

2008 2013 2018 2023 2028

Year

Ro

ad

Co

nd

itio

n

Good

Fair

Poor

Very Poor

(Typically Designed for Traffic Expected over 20-30 Years)

Two Roads, same condition & traffic – but only budget for one ?

A B

What is Asset Management ?

Asset Management = Planning

Ro

uti

ne

Ma

inte

na

nce

Co

sts

Pe

r Y

ea

r (R

/m2)

Degree of Planning

Preventative Maintenance Reactive Maintenance Total Maintenance

Optimal Zone

At SANRAL = R 6.50 / m2 per year

Asset Management System

Building Blocks/Puzzle Pieces of AMS

• Policy/Procedures – Principles/Rules to Guide Decisions and achieve rational

outcomes – what, where, when, how.

• Funding – Financial resources for operation and results implementation.

• People - People make decisions, the rest are just to support the process.

• Hardware – Road Survey Equipment + IT Infrastructure.

• Software – Computer based data Analysis and Storage Tools.

• Data – Knowing what you have, its condition and performance Trend.

Hardware

Software

Data

People

Funding Policy/

Procedures

• For asset management to be successful all the “pieces of the puzzle”

need to be in place in a “balanced equilibrium”

• It does not help you have the most advance survey vehicle but no means

to effectively store and analyse the data, or

• Have the most sophisticate software, but the quality of your data is

suspect !

• Without Funding and People – Nothing will happen !!!

Hardware

Software

Data

People

Funding

Policy/

Procedures

Asset Management System - Success

AMS Hardware - Pavement Data

Various condition parameters collected using SANRAL

Road Survey Vehicle: – Roughness – how bumpy is the road – speed, wear, etc

– Rut Depth – how much water pond on surface - safety

– Macro Texture – assist vehicle tire to drain water – safety, noise

– Cracking – how much water will get in - deterioration

– Alignment (DGPS) – Speed, Fuel Consumption, etc

– ROW Video – Road Signs, Section Measurements, etc

– Annual Surveys at 100 km/h

AMS Software – Road Inventory

Semi-Automated Data Analysis for data extraction

AMS Software - Real-Time Crack Analysis

Real-time analysis during recording !!!

Structural Strength (Surface Deflection (mm)) – Measured using Falling Weight Deflectometer (FWD) – Simulates

truck wheel traveling at 80 km/h over road pavement surface

– Surface deflection bowl is analyzed to establish the structural strength and remaining life of a pavement

– 100 % of the Network @ 200 m intervals every 5 years

AMS Hardware - Pavement Data

Traffic Speed Deflectometer

SANRAL TSD DATA OUTPUTS

3D Laser Point Clouds

3D Surface Images

2D/3D Surface Images

AMS Data - Bridges

Visual Assessments (DER) – Bridge condition is assessed through a standardized

procedure to determine the Degree, Extent and Relevancy.

– Bridge repairs are prioritised according to severity and Relevancy of defects

– 3 to 5 year cycle

– 8000 Bridges & Major Culverts

0

AMS Data – Traffic

Traffic Event Logger (TEL) – Inductive Loop Based Technology (1000)

+ Piezo (200)

+ WIM (45)

– Cluster Monitoring

– 1 to 3 year for Secondary Stations

AMS Data -Vehicles Operating Costs

– Up to 90 % of Total Transportation Costs

– Vehicle Operating Costs (Fuel, Tires, etc)

– Standard Vehicles (i.e. HDM-4 √ )

– Congestion (i.e. HDM-4 √ )

– Accident Costs

– Value of Time (Congestion)

And Then !!!

AMS Software - Data Management

Roughness

Rut Depth

Macro Texture

Cracking

Ravelling

Video

Surface Friction

Structural Strength

Centralised

Database

Traffic

Bridge

DGPS

Unit Costs

Economic Analysis

& Optimisation

Road Deterioration &

Maintenance Effects

Road User Effects

Centralised

Database

Dynamic

Segmentation

Uniform Sections

AMS Software - Life Cycle Modelling

Condition Surveys

SANRAL AMS Budgeting Procedure

Instrumental Data

CBA

Priority

List

PMS RDME

RUE

Bridge Inspections

BMS BDME

RUE

CBA

Priority

List

Traffic

Projected Total Volume (Sites)

No. America Europe Asia-Pacific Government Total

Sm. Systems 12,000 6,600 2,100 3,000 23,700

Med. Systems 6,200 3100 560 950 10,810

Lg. Systems 2,650 1850 180 400 5,080

Total 20,850 11,550 2,840 4,350 39,590

Projected Total Revenue (billions of $)

No. America Europe Asia-Pacific Government Total

Sm. Systems $1.12 $0.62 $0.20 $0.28 $2.21

Med. Systems $1.59 $0.80 $0.14 $0.24 $2.78

Lg. Systems $1.80 $1.26 $0.12 $0.27 $3.46

Total $4.52 $2.67 $0.46 $0.80 $8.45

Super Project List

Budget Optimisation

Projected Total Volume (Sites)

No. America Europe Asia-Pacific Government Total

Sm. Systems 12,000 6,600 2,100 3,000 23,700

Med. Systems 6,200 3100 560 950 10,810

Lg. Systems 2,650 1850 180 400 5,080

Total 20,850 11,550 2,840 4,350 39,590

Projected Total Revenue (billions of $)

No. America Europe Asia-Pacific Government Total

Sm. Systems $1.12 $0.62 $0.20 $0.28 $2.21

Med. Systems $1.59 $0.80 $0.14 $0.24 $2.78

Lg. Systems $1.80 $1.26 $0.12 $0.27 $3.46

Total $4.52 $2.67 $0.46 $0.80 $8.45

Eastern Projected Total Volume (Sites)

No. America Europe Asia-Pacific Government Total

Sm. Systems 12,000 6,600 2,100 3,000 23,700

Med. Systems 6,200 3100 560 950 10,810

Lg. Systems 2,650 1850 180 400 5,080

Total 20,850 11,550 2,840 4,350 39,590

Projected Total Revenue (billions of $)

No. America Europe Asia-Pacific Government Total

Sm. Systems $1.12 $0.62 $0.20 $0.28 $2.21

Med. Systems $1.59 $0.80 $0.14 $0.24 $2.78

Lg. Systems $1.80 $1.26 $0.12 $0.27 $3.46

Total $4.52 $2.67 $0.46 $0.80 $8.45

Southern Projected Total Volume (Sites)

No. America Europe Asia-Pacific Government Total

Sm. Systems 12,000 6,600 2,100 3,000 23,700

Med. Systems 6,200 3100 560 950 10,810

Lg. Systems 2,650 1850 180 400 5,080

Total 20,850 11,550 2,840 4,350 39,590

Projected Total Revenue (billions of $)

No. America Europe Asia-Pacific Government Total

Sm. Systems $1.12 $0.62 $0.20 $0.28 $2.21

Med. Systems $1.59 $0.80 $0.14 $0.24 $2.78

Lg. Systems $1.80 $1.26 $0.12 $0.27 $3.46

Total $4.52 $2.67 $0.46 $0.80 $8.45

Northern Projected Total Volume (Sites)

No. America Europe Asia-Pacific Government Total

Sm. Systems 12,000 6,600 2,100 3,000 23,700

Med. Systems 6,200 3100 560 950 10,810

Lg. Systems 2,650 1850 180 400 5,080

Total 20,850 11,550 2,840 4,350 39,590

Projected Total Revenue (billions of $)

No. America Europe Asia-Pacific Government Total

Sm. Systems $1.12 $0.62 $0.20 $0.28 $2.21

Med. Systems $1.59 $0.80 $0.14 $0.24 $2.78

Lg. Systems $1.80 $1.26 $0.12 $0.27 $3.46

Total $4.52 $2.67 $0.46 $0.80 $8.45

Western

Programming Programming Programming Programming

Pavement Management System Bridge Management System

Asset Information Sharing ?

1,000s

Data Creators

Data Users

Data Viewers 100s

10s

Ease of Data Viewing

Application

Functionality (GIS, CAD)

Central

Oracle 11G

RDBMS

Regional Office

Users/Viewers

Public

Viewers

Consultants/Contractors

Users/Viewers

HQ Office

Doers/Users/Viewers

Extranet

Internet Intranet

PMS Data Analysis

dTIMS/PERS/HDM-4

Data Load

IT IS Admin

Data View

ITIS

PMS Data View

IT IS Pavement

AMS Software - Information Access

SANRAL: Touching Peoples Lives

“Where a road passes,

development follows right on

its heels”

THANK YOU!