Welcome Maria Jose Hernandez Guevara
We are delighted to welcome Maria as a new member of the R+R staff and wish her every success in her new role.
Maria holds an MSc in Civil Engineering (Geotechnical Engineering/Construction and Maintenance Management) from ETH Zurich, as well as a BSc in Civil Engineering (Honours, cum laude) from the Universidad de Los Andes in Bogotá, Colombia.
Thanks to her many years’ experience in client representation, tunneling and underground construction, procurement, and operational and strategic project management, she is an excellent addition to our R+R-Team’s consultancy and technical expertise.
N11/60, N01/42 UPlaNS – ZH-Ost–Kloten Süd Interchange (ZOK), Completion of the Maintenance Concept (EK) Phase
Renato Käppeli / Stefan Isler
Over the past two years, we have supported the Federal Roads Office (FEDRO) as project-owner support unit in the development of the maintenance concept (EK) for the ZOK project.
In addition to renewal work, smaller, targeted improvements to enhance traffic safety and traffic flow were also examined.
A particular challenge in this demanding project was the dense population and high traffic volume in the vicinity of Zurich Airport.
Approval for the EK has been granted, and we look forward to supporting the next project phases.
N06.32 EP Muri – Rubigen
On April 23rd, 2026, the Federal Department of the Environment, Transport, Energy and Communications issued planning approval for the "N06.32 EP Muri – Rubigen" maintenance project on the A6 motorway to FEDRO’s Thun branch. If no objections are received, the next phase of the planning process can be started. Actual maintenance work on this section of the motorway as well as on the Worb feeder road will be carried out from 2029 onwards.
N08 EP Sarnen South – Hergiswil
On the northernmost section of the N8, which forms part of the important transit axis between Central Switzerland and the Bernese Oberland, extensive renovation work is planned for the coming years on the route, engineering structures, and operational and safety facilities. We are delighted to be supporting the Zofingen branch of ASTRA as the client's representative in this project.
Welcome Maria Jose Hernandez Guevara
N11/60, N01/42 UPlaNS – ZH-Ost–Kloten Süd Interchange (ZOK), Completion of the Maintenance Concept (EK) Phase
N06.32 EP Muri – Rubigen
N08 EP Sarnen South – Hergiswil
RESEARCH PROJECT VSS 2011/705: LIFE CYCLE COSTING FOR MANAGING ROAD MAINTENANCE
R+R has carried out a research study on behalf of the Swiss Association of Road and Traffic Professionals (VSS) on Life Cycle Costing in road maintenace. The report represents a general guide and manual for improved maintenance strategies, providing basic knowledge as well as specific instructions.
Das InstruLife Cycle Costing (LCC), as a tool to minimise life cycle costs, is not restricted to mere analysis, but also includes a design task. An iterative process leads to the definition of optimal system boundaries (maintenance strategy, construction variant, etc.) resulting in minimal costs over the entire life cycle of the road infrastructure. Function and benefits are predetermined.
The research study presents a process sequence that highlights the individual elements and steps belonging to a comprehensive LCC. Irrespective of the actual decision-making scenario, this process sequence is the same for all subsystems in accordance with SN 640 900. The specific method of evaluation, the period under observation and the risk analysis are to be determined on a situational basis.
Client
Federal Roads Office (FEDRO)
Processing period
2012 – 2015
Project type
Road
Services
Consulting
Fields of expertise
Project Evaluation
Forecast Models
Downloads
Project sheet
Contact
Dr. Jost Lüking
Consultant economics, chairman of the board of directors