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Gauteng Freeway Improvement Scheme Road Pavement Forum Alex van Niekerk November 2007.

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Presentation on theme: "Gauteng Freeway Improvement Scheme Road Pavement Forum Alex van Niekerk November 2007."— Presentation transcript:

1 Gauteng Freeway Improvement Scheme Road Pavement Forum Alex van Niekerk November 2007

2 Introduction ► Congestion have social, environmental and economic implications, and will limit sustainable growth ► Several initiatives in the past to upgrade and expand the freeway network ► Gauteng Freeway Improvement Scheme presented to Minister of Transport in 2005 ► Inter authority working group – DOT chairmanship  Developed concept for improving & expanding freeways in the province  Produced document – project context and principles: ► Promotion of travel demand management and public transport ► Road network management – ITS, IMS, service to public ► Sustainable maintenance and expansion of the freeway network ► Project financed as a state implemented toll road

3 Project Extent: PLANNED LANE ADDITIONS: 230km (2012) PLANNED PLANNED MINOR UPGRADES: (173 KM) (2012) PLANNED INITIAL NEW ROUTES: 73km (2020) 73km (2020) FUTURE NEW ROUTES: 95 km (2025 +) TOTAL INITIAL SCHEME (2020): 466 KM FINAL SCHEME: 561 KM

4 Integrated Approach ► In order to address congestion problems – integration of different transport initiatives/modes - essential ► Gauteng Freeway Improvement Project focus –  Modal Integration  Travel Demand Management (i.e. HOV lanes)  Provision of required infrastructure  Intelligent Transport Systems (ITS)  Improved incident management

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6 HOV Network ► Additional lanes added – High Occupancy Vehicle lanes ► Depending on route, can be 2+, 3+, etc. ► Park and Ride facilities & inter modal transfer facilities will promote ride share HOV Lane

7 Integrated Solution ► Potential first phase HOV network ► Inter modal transfers ► P&R ► Gautrain ► Metro Rail ► BRT Integration

8 Project Status ► Cabinet approved project – July 2007 ► Announced by Minister – October 2007 ► Project was found feasible for phase 1 – Existing freeway upgrades & provisions for public transport (Cost – R12b excl VAT, 2007):  Additional lanes to existing freeways  Substantial interchange improvements  Non freeway public transport improvements ► Phase 2 – construction of new infrastructure – feasible if staggered over period from 2010 to 2020 – further R10b (excl VAT,2007)

9 Infrastructure cost ► Estimated cost for road improvements: R25m to R65m/km ► Average estimated cost for new road sections: R90m/km excluding the cost of land

10 Project financing & implementation ► User pay principle (toll) is proposed to finance project ► Travel demand management measure ► Provides a mechanism for accelerated financing of infrastructure – the sooner it can be provided, the sooner benefits are realised (economic, travel times, safety, etc) ► Toll declaration in process – public comment period closed 14 November 2007

11 Toll Declaration

12 Comprehensive Open Road Toll System Features of Toll Strategy: ► 47 gantries on existing roads for 2010 phase ► Average spacing 10,7 km / gantry ► Directional – gantry is only covering one direction/carriageway of traffic flow ► Wide coverage on all routes – fair distribution to all users ► Low toll tariffs per toll point to optimise attraction

13 Open Road Tolling ► ETC – no physical plazas – no delay ► The potential diversion was modeled – concluded that the diversion in metropolitan areas minimal

14 Social & Economic Impact ► Economic Impact:  Contribution of R14,2bn and R15,3bn to GDP in 2008 & 2009 respectively  Contribution of R6,3bn and R6,7bn for Gauteng GGP for 2008 & 2009 respectively  direct employment opportunities and indirect employment opportunities, mostly in low wage brackets  After construction – 1800 direct and 9200 indirect job opportunities  R39,7 bn contribution to capital formation

15 Proposed Road Improvements ► In general, freeways will be upgraded to 4 lanes per direction ► Some sections, up to 6 lanes per direction ► Interchanges are improved ► Auxiliary lanes at on- and off ramps ► Cross road improvements ► Median lighting is provided ► Many instances – F-Shape barrier in median

16 Pavements ► Pavement maintenance strategy for toll projects is impacted on/determined by the financial model ► Project scope – provide a 10 year maintenance free pavement design, and a 30 year life cycle pavement strategy ► For road widening - pavement layers in general must conform to the existing layer works. ► Pavement widening in general – took into account practical considerations i.e. accessibility, restricted work area and time available for construction

17 Pavements ► Limited structural improvements to the existing pavements are required ► On flexible pavements on steep uphill's, CRCP inlays are considered ► The majority of pavement actions required are functional in nature, consisting of stress absorbing membrane interlayer (SAMI) and asphalt overlays (mostly BRASO), ► Grinding of concrete pavement is proposed between N1 Hans Strijdom to Bucleuch interchanges – improved riding quality, skid resistance, reduced noise ► The UTCRCP has been considered as a rehabilitation measure, and is an option in the 30 year life cycle of the pavement

18 Typical upgrading works

19 N1: Maraisburg Interchange

20 N1: HANS STRIJDOM INTERCHANGE

21 N1: WILLIAM NICOL INTERCHANGE

22 N1: RIVONIA ROAD INTERCHANGE :

23 N1: Allandale Interchange

24 N1: Olifantsfontein Interchange Additional bridge over the N1

25 N1: Rooihuiskraal Interchange

26 JOHN VORSTER INTERCHANGE N1: John Vorster Interchange

27 N1/R21 Interchange

28 N1: Rigel Interchange

29 N1: Garstfontein Interchange

30 N1: Atterbury Interchange

31 N1: Lynnwood Interchange

32 N3: Grey Ave. Interchange

33 N3/N12 Elands Interchange N3: Elands Interchange

34 N3: Gilloolys Interchange

35 N3: Linksfield Interchange

36 ► N3: Marlboro Interchange

37 N12: Reading Interchange

38 N12/N17 Interchange

39 Procurement & Implementation ► ITS for 180km currently implemented ► N1 between R21 and Atterbury – under construction ► N12 – Gilloolys to R21 – tender stage ► Pre-cast median barriers – tender stage ► Pre-qualification for 6 work packages commenced ► Designs for further sections in progress

40 Pre Qualification ► Work Package A (18km):  A1: N1 section 20 between Golden Highway and 14th Avenue – 17 km;  A2: N12 section 18 between the Elands Interchange and the M1 Interchange – 1km ► Work Package B (21km):  N1 Section 20 between 14th Avenue and Buccleuch Interchanges ► Work Package C (23km):  N1 Section 20 & 21 between Buccleuch and Brakfontein Interchanges; ► Work Package D (15km):  D1: N1 Section 21 between Brakfontein and the R21 Interchanges – 10 km;  D2: N1 Section 21 between the Atterbury and Proefplaas (N4) interchanges – 5 km ► Work Package E (16km)  E1: N3 Section 12 between Old Barn (Heidelburg rd) and Geldenhuys (M2) Interchanges – 12 km  E2: N12 Section 18 between Reading (R59) and Elands (N3) interchanges – 4 km ► Work Package F (17,6 km)  N3 Section 12 between Geldenhuys (M2) and Buccleuch Interchanges

41 Project Programme ► Project announced by Minister of Transport:8 October 2007 ► Intent to Toll commenced: 12 October 2007 ► Commencement of pre-qualification of contractors: 7 November 2007 ► Public Comment closure:14 November 2007 ► Closing of pre qualification period:28 November 2007 ► Announcing of pre-qualification results:12 December 2007 ► Closure of authorities comment on ITT:14 December 2007

42 Project Programme ► ROD for road improvements:January 2008 ► Toll declaration of roads to be upgraded:25 January 2008 ► Tender for construction works commence:1 February 2008 ► Tender for construction works close (2 months): 31 March 2008 ► Award of contracts: April 2008 ► Construction commence (2 year construction period): May 2008 ► Construction substantially completed:June 2010

43 Thank You


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