Road Maintenance Standards

Portfolio Committee on Transport 1515th MarchMarch 20201111 LL KannemeyerKannemeyer Main Road Categories in

National Roads Secondary Roads Tertiary Roads South African Road Network

Authority Paved Gravel Total

SANRAL 16,170 0 16,170

Provinces - 9 48,176 136,640 184,816

Metros - 9 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

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

Eish !!! How Did This Happen ? Sunninghill

PavedPaved –– ProvincialProvincial ++ SANRALSANRAL

Type Year V-Good Good Fair Poor V-Poor Length 2004-08 5,303 24,220 21,570 8,399 3,766 % 2004-08 8.38% 38.29% 34.10% 13.28% 5.95% GravelGravel –– ProvincialProvincial

Type Year V-Good Good Fair Poor V-Poor Length 2004-08 1,981 13,863 35,344 33,219 19,327 % 2004-08 1.91% 13.36% 34.07% 32.02% 18.63% CONDITIONCONDITION SUMMARYSUMMARY

Municipalities - Gravel

Metros - Gravel

Provinces - Gravel Very Poor (km) Poor (km) Municipalities - Paved Fair (km) Good (km) Authority Metros - Paved Very Good (km)

Provinces - Paved

SANRAL - Paved

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

Percentage of Network

As they say in the movies – “Houston we have a problem” Estimated Backlog (Strengthening / Regravel)

Strengthening/Regravel Backlog: Roads in Poor to Very Poor Condition Paved Gravel Total Authority % Length Cost % Length Cost Length Cost SANRAL 11.86% 1,932 R 15,456,000,000 0.00% 0R 0 1,932 R 15,456,000,000 Provinces - 9 22.79% 10,980 R 87,840,000,000 50.66% 69,216 R 13,843,111,157 80,196 R 101,683,111,157 Metros - 9 4.12% 2,127 R 10,635,000,000 8.48% 1,227 R 245,315,473 3,354 R 10,880,315,473 Municipalities 3.62% 1,363 R 4,089,000,000 28.54% 86,245 R 17,249,009,106 87,608 R 21,338,009,106 Total Backlog 16,402 R 118,020,000,000 156,687 R 31,337,435,736 173,089 R 149,357,435,736

Notes: 1.Based on actual condition data for only 37% of the network (used as estimate for rest ???) and some data as old as 2004 for some authorities. 2.The above backlog excludes backlogs related to periodic resurfacing of the network, upgrade of gravel roads to surfaced standard, addition of additional lanes to alleviate congestion and construction of new roads. Budget Requirement versus Allocation

Estimated Maintenance Budget Requirement per Year 2010/11 2010/11 As Maintenance Budget Per Year Authority Total Network Allocation % Sustain Backlog Total SANRAL 16,170 R 9,248,616,000 R 3,091,200,000 R 12,339,816,000 R 6,844,501,000 55.47% Provinces - 9 184,816 R 29,533,341,758 R 12,046,129,680 R 41,579,471,438 R 22,300,000,000 53.63% Metros - 9 66,143 R 13,086,160,700 R 347,052,528 R 13,433,213,228 R 3,700,000,000 27.54% Municipalities 339,849 R 14,037,274,500 R 389,727,300 R 14,427,001,800 0.00% Totals km 606,978 R 65,905,392,957 R 15,874,109,508 R 81,779,502,465 R 32,844,501,000 40.16%

Notes: 1.Based on actual condition data for only 37% of the network (used as estimate for rest ???) and some data as old as 2004 for some authorities. 2.Strengthening Backlog addressed over 5 years, and regravel over 10years. 3.The above backlog excludes backlogs related addition of additional lanes to alleviate congestion and construction of new roads. WhyWhy isis itit HappeningHappening –– PavementPavement DesignDesign ??

Road Deterioration due to Traffic Loading & Environment 100 Maintenance Actions Good 80 Fair 60 Moisture Ingress Poor 40 No Maintenance

Road Condition Road 20 Very Poor (Typically Designed for Traffic Expected over 20-30 Years) 0

2008 2013 2018 2023 2028

SA Pavement Design Requires PerformanceYear of Preventative Maintenance WhyWhy isis itit HappeningHappening –– PavementPavement DesignDesign ??

South Africa Northern Hemisphere Increased Number of Heavy Axles Repetitions over 20-30 year Design Life Waterproof Layer

Local Street Farm To Market

Typical National / Interstate Road WhyWhy isis itit HappeningHappening –– PavementPavement AgeAge

Pavement Age Trend

100%

90%

80%

70%

60%

50%

40%

(Carriageway km) (Carriageway 30%

20% National Road Network Length Length Road Network National 10%

0% 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 YEAR

> 25 years 21 - 25 years 16 - 20 years 11 - 15 years 6 - 10 years 0 - 5 years Please Note: 80% of Network Older than Original 20 Year Design Life WhereWhere isis itit HappeningHappening –– RainfallRainfall ZonesZones

BEIRA CHIPINGE FRANCISTOWN

WINDHOEK MESSINA

WALVISBAY TZANEEN GABORONE

PRETORIA ZEERUST JOHANNESBURG MAPUTO KLERKSDORP KEETMANSHOOP VOLKSRUST

BLOEMFONTEIN LADYSMITH

WEPENER DURBAN ROUXVILLE PORT SHEPSTONE

SOMERSET CERES WEST Wet (>1000 mm/yr) OUDTSHOORN EAST LONDON CAPE TOWN Moderate (500 – 1000) MOSSEL BAY Dry (< 500 mm/yr) Birth/Rebirth of a Pothole ?

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?

NoooooooNooooooo…….. PotholesPotholes areare thethe symptomsymptom notnot thethe causecause…… IfIf wewe strivestrive toto becomebecome bestbest potholepothole repairersrepairers inin thethe worldworld .... ThenThen wewe havehave lostlost thethe plotplot ...... What Is The Solution – Preventative Maintenance !

SANRAL Routine Maintenance Cost - Crack Sealing, Cleaning Drainage Structures, Cutting of Grass - R 4.50 m2 / per km / 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 HowHow DoDo SANRALSANRAL ImplementImplement ThisThis ??

„ Technical Specifications (Legal Words) HowHow DoDo SANRALSANRAL ImplementImplement ThisThis ??

„ Technical Specifications (Legal Words) HowHow DoDo SANRALSANRAL ImplementImplement ThisThis ??

„ Routine Road Maintenance Manual (Pictures) HowHow DoDo SANRALSANRAL ImplementImplement ThisThis ?? HowHow DoDo SANRALSANRAL ImplementImplement ThisThis ??

„ Routine Road Maintenance Guidance Manual (Pictures) HowHow DoDo SANRALSANRAL ImplementImplement ThisThis ?? HowHow DoDo SANRALSANRAL ImplementImplement ThisThis ?? Conclusion?

• Road Network Problems • Old Network - >80% older than original 20 year design life • NO Preventative Maintenance done by most authorities (R4.50 m2 / km / year) – waiting for potholes. • If current budget allocations are only going to be spent on pothole repairs (R700 – R1500 m2) then totally insufficient to sustain the network. • Solution • Must ensure adequate focus on preventative maintenance to prevent new potholes – with associated systematic repair of existing potholes. • All the guidelines manuals are available. • Officials not always aware of existence or how to apply - Need to ensure that appropriate technical skills are available at all government levels. SANRAL Website: www.nra.co.za

THANKTHANKTHANK YOU!YOU!YOU! “Where a road passes, development follows right on its heels”