ROADS PROVISION DEPARTMENT Pavement Management. Durban Road Network Ownership Primary Road Owners...
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Transcript of ROADS PROVISION DEPARTMENT Pavement Management. Durban Road Network Ownership Primary Road Owners...
![Page 1: ROADS PROVISION DEPARTMENT Pavement Management. Durban Road Network Ownership Primary Road Owners eThekwini Municipality KZN DoT SANRAL.](https://reader035.fdocuments.net/reader035/viewer/2022062909/5a4d1b947f8b9ab0599c2de1/html5/thumbnails/1.jpg)
ROADS PROVISION ROADS PROVISION DEPARTMENTDEPARTMENT
Pavement Pavement ManagementManagement
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Durban Road Network Durban Road Network OwnershipOwnership
Primary Road Owners
• eThekwini Municipality
• KZN DoT
• SANRAL
MA RG ARE T M
N CA DI AV E
Road NetworkSANRALKZNeTHEKWINI
LEGEND N
EW
S
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eThekwini Road Network eThekwini Road Network StatisticsStatistics
RISFSA
Category
Road Lengt
h(km)
Road Lengt
h(km) PMS
Category
Road Length(km)
Road Lengt
h(km)
Total Road Length (km)Surfac
ed Gravel Surfaced Gravel
2 117 0 A 117 0 1173 359 0 B 1 343 0 1 3434 2 259 0 C 1 275 0 1 2755 3 192 1 052 D 3 192 1 052 4 244
Total 5 927 1 052 Total 5 927 1 052 6 979
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eThekwini Road Network eThekwini Road Network ManagementManagement
New Surfaced Roads
PrivateDevelopmentHousing
Pavement Design Report Materials As Built Letter of Compliance
Existing SurfacedRoad Network
RoadRehabilitation
Des
ign
&Co
nstru
ctio
n
Pavement ManagementSystem
Dat
aCa
ptur
e
RoutineMaintenance
NetworkRehabilitationProgramme
Prioritization &Optimization
Capital Roads
Gravel RoadNetwork
Rout
ine &
Plan
ned
Main
tena
nce
Des
ign
&Co
nstru
ctio
n
New Surfaced Roads
PrivateDevelopmentHousing
Handover to Roads Provision Pavement Design Report Materials As Built Letter of Compliance
Existing SurfacedRoad Network
RoadRehabilitation
Des
ign
&Co
nstru
ctio
n
Road &StormwaterMaintenance
Pavement ManagementSystem
Dat
aCa
ptur
e
NetworkRehabilitationProgramme
Prioritization &Optimization
Capital Roads
Gravel RoadNetwork
Des
ign
&Co
nstru
ctio
n
Des
ign
&Co
nstru
ctio
n
Des
ign
&Co
nstru
ctio
n
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0102030405060708090
100
2003 2005 2007 2009Year of Assessment
Aver
age R
oad
Net
work
Visu
al Co
nditi
on In
dex
VeryPoor
Poor
Fair
VeryGood
Good
eThekwini Surfaced Road eThekwini Surfaced Road Condition TrendsCondition Trends
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eThekwini
SANRAL
KZNDoT
PMS Road CategoriesOveral
lA B C D
79.5 81.2 80.2 79.8 80.3 85.3 73.5
Durban Average Surfaced Road Durban Average Surfaced Road Condition 2009Condition 2009
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Road Rehabilitation Budget Road Rehabilitation Budget AllocationAllocation
050
100150200250300350400
2004/ 05 2005/ 06 2006/ 07 2007/ 08 2008/ 09 2009/ 10 2010/ 11
Financial Year
Budg
et A
lloca
tion
(R M
illio
n)
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2009 Visual Condition 2009 Visual Condition Assessment OutcomesAssessment Outcomes
Length (km) of network - VCI < 30 7.3
Length (km) of category A & B roads - VCI < 50 24.8
% of category C & D roads - VCI < 50 4.7
Average VCI for entire network 80.3
ConstraintsConstraints• All roads Visual Condition Index (VCI) > 30All roads Visual Condition Index (VCI) > 30• All category A & B roads VCI > 50All category A & B roads VCI > 50• < 10% category C & D roads VCI < 50< 10% category C & D roads VCI < 50• Average VCI of entire network > 70Average VCI of entire network > 70
OutcomesOutcomes
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Consequential Road Life-Consequential Road Life-spansspans
PMS Category A B C and D
Total Rehab. (% Length of Category) 3.1 4.9 2.7
Years Between Rehab. Treatments 32 21 37
Standard Design Lifespan (Years) 30 20 20
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Challenges …. 1Challenges …. 1
Condition Assessment• Based on Visual Condition Index (TRH 22)
• Subjective
•Quality and significance of data
• Excessive data captured for minor roads (75% of network)
•Slow assessment rate
• Mechanical testing preferable
•Generates large quantities of data
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Challenges …. 2Challenges …. 2
Network Level versus Project Level Analysis• 60% conversion rate (by project)
• Optimisation on greatest benefit/cost - not area
• Analysis based on links (intersection to intersection)
Network Variability• Ad hoc development (intersection
improvements, widenings, etc.)
• No “As Built” records
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Challenges …. 3Challenges …. 3
GIS Issues• Corporate GIS Co-ordination
• Subservient to Property Management System
• Asset identifier (Road ID) not “owned” by Roads Provision Department
Accounting Issues• Legislated register (MFMA) on
accounting system (JD Edwards)
• Separate database from GIS & PMS
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Challenges …. 4Challenges …. 4
Skills Shortages• Highly specialised field
• Few practitioners country wide
• Roads Provision staff :-
1 Technologist
1 Technician (no experience)
1 GIS officer
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Thank You