Dr. Samson Mathew Mrs. V. Sunitha Professor Assistant...

Dr. Samson Mathew

Professor

Mrs. V. Sunitha

Assistant Professor

Department of Civil Engineering

National Institute of Technology

Tiruchirappalli - 620015

“Pavement Management is concerned with Doing Right Thing at

the Right Place, using the Right Type of Material, with the

Right Thicknesses, with the Right Design Details and all for the

Lowest Total Cost”

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Pavement Management System

• Prioritisation of roads for maintenance when funds are

inadequate

• Authorizing and scheduling the maintenance work

• Provides a rehabilitation system for monitoring the efficiency

and effectiveness of maintenance works

3

Objectives

• To develop pavement performance prediction model for the

road network

• To develop a decision support system for optimal maintenance

of urban streets under the growing traffic conditions

Need for the Study

Methodology

4

Roads under study

1. Anna Nagar Main Road

2. Bharathidasan Road

3. Bishop Road

4. Collector Office Road

5. Convent Road

6. Hospital Road

7. Lawson’s Road

8. McDonald’s Road

9. Pattabhiraman Street

10. Puthur EVR Road

11. Puthur Main Road

12. Reynolds Road

13. Rockin’s Road

14. Royal Road

15. Salai Road

16. Sastri Road

17. Thillai Nagar Main Road

18. Victoria Road

19. Williams Road 5

Data Collection

• Traffic Volume

• Road Inventory Survey

– surface type, no. of lanes, length and width of road, type and width of

median, drainage particulars, shoulder information, no. of lamp posts

and electric posts, bus stop, signs and markings

• Roughness survey (May’ 11, Sep ‘11, Jan’12, May’ 12)

• Pavement Condition Survey (Jan’ 11, May ‘11, Sep’11, Jan’ 12)

– Alligator Cracking, Longitudinal Cracking, Transverse

Cracking, Rutting, Potholes, Depression, Patching, Raveling

– distresses were categorized based on the variation in their density and

severity

– Density varying from 0% to 100% while severity being classified as

low, medium and high

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Roughometer III attached to the vehicle GPS device

DMI

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Roughometer III

Sensor DMI

Controller

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Variation of IRI for three seasons

9

0

1

2

3

4

5

6

7

8

IRI,

m/k

m

Name of the Road Section

02.03.2011 23.07.2011 20.05.12

Pavement Condition Data Collected for McDonald’s

Road in January 2012

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Chainage

(m)

AC TC LC Ru Pot Dep Pat Rav

L M H L M H L M H L M H L M H L M H L M H L M H

0 25 - 10 - - - - - - - - - - - - - - - - 10 - - 5 15 -

25 50 10 10 - - - - - - - - - - - 10 - - - - - - 10 5 10 15

50 75 - - - - - - - - - - - - - - - - 10 - - 10 - - 15 -

75 100 - - - - - - - - - - - - - 10 - - 10 - - 15 - - 10 -

100 125 - - - - - - - - - - - - - - - - - - 10 - - 10 - -

125 150 - - - - - - - - - - - - - 15 - - - - - - - 5 - -

150 175 - - - - - - - - - - - - - - - - - - - 15 - 5 - -

175 200 - - - - - - - - - 5 - - - - - - - - - - - 5 - -

200 225 - - - - - - - - - - - - - - - - 5 - - - 10 - - 5

225 250 - - - - - - - - - - - - - - - - - - - - - 5 - -

250 275 - 10 - - - - - - - - - - - 5 - - 5 - - 5 - - 10 -

275 300 - - - - - - - - - - - - - - - - - - - - - - 20 -

300 325 - - - - - - - - - - - - - 10 - - - 5 - - 10 - 20 -

325 350 - - - - - - - - - - - - - - - - - - - - - - - -

Pavement Condition Index: Deduct Curve Method• Deduct Value for each distress -

based on distress severity and

density

• TDV – adding all the distress deduct

value

• Corrected Deduct Value - based on

the number of distresses (q) and

the TDV

• PCI = 100-CDV

Source: Saad Issa Sarsam – 201011

PCI Rating

81-100 Very Good

61-80 Good

41-60 Fair

21-40 Poor

<21 Very Poor

79

13

41 0

63

1511

62

50

1715

8 9

0

10

20

30

40

50

60

70

80

90

100

VG G F P VP

Perc

en

tag

e o

f S

ecti

on

s

Condition of Sections

Jan-11

May-11

Sep-11

Variation in PCI of various road sections three seasons

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Performance Prediction Model and Decision Support System

HDM-4 - A Four Step Process

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Define Strategy Details

Specify Standards Assignments

Generate Strategy

Perform Budget Optimization

Generate Reports

Data Input

Input Description

Road network data Basic road details, geometries, pavement history,

pavement condition etc.

Vehicle fleet data Basic characteristics of vehicle fleet, economical and

financial costs, etc.

Work standards Specifications for maintenance and improvement works

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Type of Maintenance Work Cost/Km/lane (Rs.)

Periodic Renewal 2,50,000

SDBC 25mm 5,25,000

BM 50mm + MSS 9,62,500

Strengthening

(BM 75mm + SDBC 25mm)19,81,875

Cost of Maintenance Works

Name of the SectionSection

ID

No. of

Lanes

Length

(km)AADT

Anna Nagar Main Road S1 2 1.000 17156

Bharathidasan Road S2 4 1.300 23422

Bishop Road S3 2 1.050 35105

Collector Office Road S4 2 1.675 20153

Convent Road S5 2 0.525 15483

Hospital Road S6 2 0.550 18077

Lawson’s Road S7 2 0.500 24956

McDonald’s Road S8 2 0.350 17195

Pattabhiraman Street S9 2 0.850 16118

Puthur EVR Road S10 4 0.725 25720

Puthur Main Road S11 4 0.725 18255

Reynold’s Road S12 2 0.375 15517

Rockins Road S13 2 0.525 13721

Royal Road S14 2 0.625 14262

Salai Road S15 2 1.250 19285

Sastri Road S16 2 1.025 18141

Thillai Nagar Road S17 2 1.050 25380

Victoria Road S18 2 0.275 12122

Williams Road S19 2 0.875 12531

Traffic Volume

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Progression of Cracking and Roughness: Bharathidasan Road

Comparison Between 25mm SDBC and 50mm BM+MSS

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Section Length

(km)

25mm SDBC 50mm BM+MSS

Year NPV/CAP Year NPV/CAP

Anna Nagar Main Road 1.0 2013 0.537 2013 0.326

Bharathidasan Road 1.3 2013 2.086 2014 1.986

Bishop Road 1.2 2012 11.268 2013 10.729

Collector Office Road 1.7 2012 5.406 2013 5.031

Convent Road 0.5 2012 0.639 2012 0.533

Hospital Road 0.5 2012 3.792 2014 3.481

Lawson’s Road 0.5 2012 9.087 2013 8.734

McDonald’s Road 0.3 2012 2.314 2014 2.198

Pattabhiraman Street 0.8 2012 3.536 2014 3.412

Puthur EVR Road 0.7 2012 3.014 2012 2.945

Puthur Main Road 0.7 2012 1.445 2014 1.236

Reynold's Road 0.8 2013 1.167 2014 0.953

Rockin's Road 0.5 2012 2.459 2014 2.226

Royal Road 0.6 2012 2.722 2014 2.431

Salai Road 1.3 2012 3.770 2013 3.459

Sastri Road 1.0 2012 2.622 2012 2.418

Thillai Nagar Main Road 1.0 2012 5.078 2014 4.868

Victoria Road 0.3 2012 2.205 2013 2.156

Williams Road 0.9 2012 3.772 2014 3.538

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Year of

Mainte

nance

SectionLength

(Km)AADT

Type of

Maintenance

Cost of

Maintenance

(million Rs.)

2012

Bishop Road 1.2 38888 Strengthening 4.439

Lawson’s Road 0.5 30631 SDBC 0.525

Puthur EVR Road 0.7 28506 BM+MSS 2.791

Collector Office Road 1.7 24752 SDBC 1.913

Williams Road 0.9 13845 SDBC 0.932

Hospital Road 0.5 20024 SDBC 0.512

Salai Road 1.3 21346 SDBC 1.275

Sastri Road 1.0 20128 SDBC 2.100

Rockin’s Road 0.5 15231 SDBC 0.536

Victoria Road 0.3 13417 SDBC 0.293

Thillai Nagar Main Road 1.0 31251 SDBC 1.050

Necessary Fund Scenario IRI (m/km) < 2.5

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Year of

Mainten

ance

SectionLength

(Km)AADT

Type of

Maintenance

Cost of

Maintenance

(million Rs.)

2013

McDonald’s Road 0.4 21106 Strengthening 1.295

Pattabhiraman Street 0.8 19786 SDBC 0.817

Royal Road 0.6 19405 SDBC 0.666

Anna Nagar Main Road 1.0 21067 BM+MSS 3.850

Bharathidasan Road 1.3 28752 SDBC 2.730

Puthur Main Road 0.7 22420 SDBC 1.523

Reynold’s Road 0.8 19046 SDBC 0.864

Total Length of Maintenance 15.2 Total Cost 28.109

Contd..

Year of

Mainten

ance

SectionLength

(Km)AADT

Type of

Maintenance

Cost of

Maintenance

(million Rs.)

2012


Lawsons Road 0.5 27645 SDBC 0.525


McDonald’s Road 0.4 19048 BM+MSS 0.674



Rockins Road 0.5 15231 SDBC 0.536


Total Length of Maintenance 6 Total Cost 9.823

Budget = Rs. 10 millions Span = 5 years

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Budget Bound Scenario

Year of

Mainte

nance

SectionLength

(Km)AADT Maintenance

Cost of

Maintenance

(million Rs.)

2012

Lawson’s Road 0.5 27645 SDBC 0.525

McDonald’s Road 0.4 19048 SDBC 0.368


Rockin’s Road 0.5 15231 SDBC 0.536

2013

Pattabhiraman

Street0.8 19786 SDBC 0.817


2014 Williams Road 0.9 16915 BM+MSS 1.708

Total Length of

Maintenance4.2 Total Cost 5.131


(Rs. 2 millions/yr)

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Year of

Mainten

ance

SectionLength

(Km)AADT

Type of

Maintenance

Cost of

Maintenance

(million Rs.)

2012


Lawsons Road 0.5 27645 SDBC 0.525


McDonald’s Road 0.4 19048 BM+MSS 0.674



Rockins Road 0.5 15231 SDBC 0.536

Puthur EVR Road 0.7 28506 SDBC 1.523

Salai Road 1.3 21346 SDBC 1.275


2013

Thillai Nagar Main Road 1.0 31251 SDBC 1.050

Pattabhiraman Street 0.8 19786 SDBC 0.817


Total Length of Maintenance 10.5 Total Cost 14.846


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Observations drawn from the study

• 25mm SDBC overlay at 2012/2013 was found to be the

optimum solution compared to 50mm BM at 2013/2014.

• The minimum budget required for keeping the all the roads

within the specified threshold level is Rs. 28 million.

• In the budget bound scenario, around 6 km of road length

can be maintained with budget limit of Rs. 10 million and

10.5 km of road length with budget of Rs. 15 million.

• The length of road maintained with budget 10 million in 5

years is 6 km, but only 4.2 km of road can be maintained if

the budget is allocated as 2 million in each year for 5 years.

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Dr. Samson Mathew Mrs. V. Sunitha Professor Assistant...

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