Roads
During the past nine decades Jeffares & Green has been responsible for the design, contract administration and construction monitoring of many thousands of kilometres of new roads in Southern Africa, as well as for the upgrading and rehabilitation of existing roads. The company recognises that roads promote economic development and stimulate growth, and with this in mind, works in partnership with its clients to ensure that the needs of the communities they serve are fully addressed. The services offered are summarised below:
Full consulting engineering services for all types of roads and highways
- Urban freeways
- Rural freeways
- Interchanges
- Rural and urban arterials and main roads
- Collector roads
- Community access roads
- Urban streets
- At-grade intersections
- Parking areas
Expertise in all pavement types
- Bituminous pavements
- Concrete pavements
- Gravel roads
Road infrastructure planning
- Strategic road network planning
- Needs analysis
- Transportation and traffic studies
- Concept designs
- Route location
- Feasibility studies
- Materials investigations
- Cost/benefit analyses
- Basic planning / preliminary design
Project preparation
- Detailed designs, including road geometrics, stormwater drainage and bridges
- Detailed geotechnical investigations
- Pavement design
- Location of suitable construction material sources
- Planning for occupational health and safety requirements
- Environmental impact assessments
- Assessing land acquisition requirements
- Planning of utility service relocations
- Tender documentation and evaluation
Construction implementation
- Project management and contract administration
- Construction monitoring and supervision
- Materials testing and construction quality control
- Management of labour intensive construction
- Training of labour and/or small scale (emerging) contractors
Post construction services: maintenance
- Operation of pavement management systems
- Compilation of road maintenance programmes
- Documentation and management of road maintenance contracts
Road rehabilitation
- Precise pavement condition measurement and assessment
- Identification of the critical pavement layer and its potential failure mode
- Calculation of the remaining life of each pavement
- Identification of rehabilitation options
- Maximising the use of existing layers and materials
- Preparing overall cost-effective rehabilitation designs
Associated specialist services
J&G offers specialist services in the following fields through its associated companies within the Group:
- Geotechnical engineering and environmental services through Terratest (Pty) Ltd
- Traffic and transportation engineering through Transportation and
- Traffic Technology Africa (Pty) Ltd (TTT Africa)
- Pavement management and non-destructive testing of road pavements through Dynatest Africa (Pty) Ltd
- Pavement surveillance and asphalt testing through Specialised Road Technologies (Pty) Ltd (SRT)
- Institutional and social development services through ACETE Development Consultants