r61 section 8 special development road safety project ... · safety project which aimed to reduce...
TRANSCRIPT
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R61 Section 8 – Special DevelopmentRoad Safety Project:
Lessons Learnt
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Overview of Presentation
• Background
• Safety Considerations
• Project Status
• Lessons learnt
• Way Forward
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Background
• The R61 (Section 1 to Section 8) was declared a national route
in 2003.
• R61 Section 1 starts at the WC Border continues to N9
intersection at Aberdeen, then N9 north of Graaff Reinet,
continues through N10 at Cradock, then Queenstown,
through Mthatha and section 8 ending at Port St Johns.
Included with the declaration of the N2 WCTR was a short 20
km section between Ntafufu River & Lusikisiki.
• Through the former Transkei, statutory control regulations
were not enforced and thus communities and towns were
allowed to developed linearly along the R61 (Typical
challenges associated with Ribbon development in Rural
settlement areas).
• This severely impacted the safety of the road users
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Background
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Background
• SANRAL appointed ITS Engineers in 2009 to conduct study
into Practical Design Guidelines for Pedestrian Facilities on
Rural Higher Order Roads
• R61 Section 8 from Mthatha (km -2.1) to Port St Johns (km 70)
and Ntafufu River to Lusikisiki was chosen as Case Study
• The study was conducted by means of a Desktop study,
community meeting and interviews, visual inspections and
traffic counts
• ITS Engineers recommended the upgrading of certain sections
of the road to improve road safety conditions for pedestrians,
non-motorised transport, local and through traffic.
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Background cont…..
• In 2010, based on the report, the SANRAL approved a Road
Safety Project which aimed to reduce accidents by closing
unsafe accesses, construction channelized intersections, grade
separated intersections (interchanges), pedestrian and
livestock underpasses and walkways.
• After a competitive tendering process, Goba (Pty) Ltd, now
Hatch Africa, was appointed as the Consulting Engineers for
the Special Development Projects on R61 from Mthatha to
Lusikisiki.
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Safety Considerations
Community Characteristics
High unemployment
High poverty rate
50 – 60 % of the population relies on Government Grants
Low skills base
Female headed households
Under performing Local Municipalities
Location and access to schools (junior)
Lack of facilities – Public Transport, access roads, etc
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Safety Considerations –
Typical Safety Issues
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Safety Considerations –
Typical Safety Issues
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Safety Considerations –
Typical Safety Issues
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Safety Considerations –
Typical Safety Issues
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Safety Considerations –
Safety interventions/ solutions
Overpass (vehicular, agricultural and pedestrian)
Underpass (vehicular and agricultural)
Interchange
Dual carriageway
Taxi ranks
Closing of unsafe informal accesses
Formalising and upgrading of formal accesses
Community access roads – linking to formal accesses
Pedestrian walkways
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Safety Considerations
During Design Development, the improvement scope was
defined and the project was divided into 11 Packages
1. Dualling Mthatha (km -2.6) to Ngqeleni Interchange (km 5)
2. Ngqeleni Int (km 5.7) to Libode East (km 27)
3. Libode East to Mngazi River (km 75)
3A. Upgrade Majola Tea (km 51) to Tombo (km 66)
4. Tombo Dual carriageway & Modal Interchange (km 66 to 68)
5. Mafini to Mngazi – Community Development
6. Ntafufu to Lusikisiki – Reseal
7. Ntafufu to Lusikisiki - Conventional & Access Roads
8. St Barnabas Dual Carriageway & Modal Interchange
9. Corana River to Mafini – Community Development
10. Misty Mount to Mafini – Community Development
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Safety Considerations - Locality Plan
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Project Status - Brief
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R61: Mthatha (Sprigg Street)
to Ngqeleni Turnoff (6 km)
Commencement date : 16 September 2013
Completion Date : 30 June 2017
Value : R400 million
Scope
– New eastbound carriageway; upgrade westbound carriage
– New bridges over the Mthatha River, Corana River and Sidwadweni River
– Interchange at Ngqeleni Turnoff
– Two agricultural underpasses; one pedestrian bridge
– Relocate households and build new dwellings
– Apply Cape Seal and asphalt at intersections 16
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R61: SIDWADWENI RIVER BRIDGE AND DUALING OF R61
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Ngqeleni Agricultural Overpass Bridge: B0235
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R61: Ngqeleni Turnoff to Libode (15
km)
Commencement Date : 28 March 2014
Completion Date : 19 September 2016
Value : R370million
Scope
– Widening of sections of road
– New cross section (passing lanes where required)
– Interchange at Libode
– Walkways and community service roads
– Construct one vehicular overpass; one vehicular underpass and one pedestrian bridge
– Construct taxi bays19
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Mt Nicolas Pedestrian Bridge: N0239
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Side View Top View
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R61: Libode East (Mount Nicholas)
to Mngazi (28 km)
Commencement Date : September 2016
Completion date : February 2019
Value : R375 million
Scope
– Construction of bridges:
Mngazi River Bridge
Qiti Overpass Bridge
Qhaka Overpass Bridge
– Construction of underpasses: Gangata Agricultural underpass
Kuleka Agricultural underpass 24
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R61: Libode (Mount Nicholas) to
Mngazi cont….
– Construction of underpasses:
Tutor Ndamase Agricultural underpass 1
Tutor Ndamase Agricultural underpass 2
Tutor Ndamase Agricultural underpass 3
Tutor Ndamase Agricultural underpass 4
Mnxabakazi Agricultural underpass
Umngazi Agricultural underpass
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R61: Libode East (Mount Nicholas)
to Mngazi cont….
– Widening of Intersections:
8x Intersections will be widened
6x Dangerous intersections will be closed
– Community Development project:
Local SMME will be used to construct community access roads which will be used to channel traffic towards the new formalised intersections.
– Relocation of services – ESKOM, Telkom, houses, etc
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R61: Upgrade from Majola Tea –
Tombo (15.5 km)
Commencement date: January 2015
Completion : April 2018
Value R535 million
Scope
– Improved alignment at sharp curves
– Widening of road with passing lanes where required
– MSE walls at high fills
– Upgrade or relocate intersections and accesses
– Construct 3x agricultural underpasses and taxi rank -Majola Tea Junction
– Relocate numerous dwellings27
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MSE Retaining Walls
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Lessons Learnt
1. Road Safety Project Programme
• Identifies and reviews specific High risk locations
• Solutions or remedies are localised
• Solutions are isolated to a specific location and reduces risk at
location – warranted under special maintenance
• Improved LOS at location – Variable LOS or function along route
• Determine overall LOS or Function based on Project Type/ Scope
• Varying LOS across length - Driver Expectation reduced
• TRH 26 Route function classification – R2 or R3
• Holistic Approach – Driver behaviour
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Lessons Learnt
2. Typical Intersection Design
• No existing typical standard for Rural Settlement (Peri urban)
• Numerous discussion and lengthy debate, typical intersection
layout agreed.
• Vehicular movement was prioritised – N2 WCTR planning (LOS)
• Typical standard - not always effective and relevant in varying
situations or conditions
• NMT not prioritised sufficiently to mitigate risk
• VRU profile not adequately– Primary Scholars, elderly, etc
• Road classification – TRH 26 – R2 or R3
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Lessons Learnt
2. Typical Intersection Design
• Prioritises safety related issues for motorised transport, e.g.
capacity, geometric, accidents etc.
• NMT modes (pedestrians, bicycles, cart etc.) expected to fit in with
the preferred solution for motorised transport - The pedestrian
desire lines sometime ignored – sight distance
• Such an approach does not adequately address the specific needs
all road users especially the VRUs. Risk not adequately mitigated
• Therefore, a more holistic approach is required – Driver &
pedestrian behaviour
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Lessons Learnt Intersection Design
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Lessons Learnt
3. Special Projects (Scope definition - Improvements)
• Economical – Desirable LOS/ Class based project type.
• Varying LOS – Driver expectation, links between intersection at
lower LOS resulting in bottle necks
• Lack of safe overtaking – Encourage overtaking through
intersection – more conflict and dangerous
• Impractical LOS – Could limits future planning and
improvements to existing alignment
• Fencing only along the improved section only – entire length
should be considered
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Lessons Learnt
4. Pedestrian Bridge/ Grade separated structures
• Review warrants for grade separation in rural settlements areas
• Only used if at-grade and ease of access – prefer to grade separate
the vehicles instead of the pedestrians
• Engineering & Planning design to facilitate pedestrian movement
towards defined crossing area - Underpass
• Bridge must have canopy – Pedestrian Psychology - safer
• Must be wide enough to cater for Livestock & cyclist
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Lessons Learnt
5. Spatial Development & Town Planning
• Inform, educate and actively participate with informal settlement
development – traditional & local authorities
• Involvement in spatial development
• Coordinate & improve Access Management
• Allowance for Public Transport Management & NMT
• Work together with other spheres of government i.e. Education,
Rural development and Local authorities
• TRH 26 consideration – Rural settlement areas (Not urban or
rural – Peri urban)
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Lessons Learnt
6. Statutory Control
• Improved and continues enforcement of regulation
• Limit future and closing of illegal and informal access,
• RRM need to maintain limited crossing points, by replacing
fencing as and when it is vandalized for entry to the road reserve,
bush clearance & grass cutting, removal of litter
• Support and work together with local & traditional authorities
• Regulations to be reviewed - Rural settlements and locality
• Action taken against offenders
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Lessons Learnt
7. Road safety education & awareness campaigning
• Most scholars make use of community services (roads &
walkways
• Occur more regularly and continuously to have impact
• Better coordination with all stakeholders incl internal
• Infiltrate schools – Life Orientation. Schools force scholars to
make use of adequate pedestrian facilities.
• More coordinated effort required
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Lessons Learnt
8. Community development Projects
• Longitudinal service roads and pedestrian walkways are mostly
being used
• Linking communities to formal access – significant improvement
• Added benefit – Opportunities for Small contractors, skills
transfer, uplifting community, socio economic upliftment
• Walkways to graded in rolling/ hilly terrain
• Project – more inclusive - Holistic
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Way Forward
SANRAL to regionally workshop lessons learnt and present
findings to focus groups – RSE & Traffic & Transportation
SANRAL to develop a standard for roads through rural
settlement – case studies – Moloto rd, N2 Mthatha
– Guideline for Public Transport on National Roads – Implement/ Pilot
– Update Typical Drawings – (Various scenarios & conditions)
Better Feasibility Planning – Overall LOS/ functioning
determined before design development
TRH 26 – Practical discussion on road classification through
rural settlements – Staged implementation to retro-fitting
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Way Forward (Continued)
Improve crash data - Earlier identify high accident locations and to measure the effectiveness of countermeasures
Road safety initiatives are complex problems to address
Require both hard and soft engineering solutions
Conventional solutions are generally not enough, creative solutions that deal specific social realities are required
The initiatives will need to be evaluated periodically to see if the social drivers and traffic demands are still relevant, and if not, then solutions need to be amended
Will ensure communities along the road benefit from project.
Continuously strive to adapt by utilising Lessons learnt
Create dedicated Road Safety Capacity within the industry –
– Design Specialist – Road Safety Engineering
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THANK YOU
SANRAL FRAUD HOTLINE 0800204558