10.07.2026

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.

12.06.2026

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.

19.05.2026

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.

05.02.2026

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.

News
10.07.2026
Welcome Maria Jose Hernandez Guevara
12.06.2026
N11/60, N01/42 UPlaNS – ZH-Ost–Kloten Süd Interchange (ZOK), Completion of the Maintenance Concept (EK) Phase
19.05.2026
N06.32 EP Muri – Rubigen
05.02.2026
N08 EP Sarnen South – Hergiswil
Federal Roads Office (FEDRO)

A1 OHRINGEN – OBERWINTERTHUR MEASURES TO OPTIMIZE TRAFFIC FLOW

During peak hours, the motorway section between Winterthur Ohringen and Oberwinterthur is highly congested. To ensure a stable flow of traffic, as well as to minimise potential backlog at the junctions, measures are being taken by the Federal Roads Office to improve and optimise the traffic situation. In addition, constructional adjustments are being made and traffic signal systems are being installed at the junctions.

Section 48 on the national motorway A1 between Winterthur Ohringen and Oberwinterthur ranks among the most congested motorway sections in Switzerland. Stretching 4.3 kilometers, it is jammed during peak hours on a nearly-daily basis. This bears negative consequences for the road networks of the Winterthur city agglomeration. The implementation of measures to optimise traffic flow is due to alleviate congestion during peak hours on both the motorway and secondary road networks, as well as to minimise the risk of accidents. Amongst other things, these measures include extensions of the Oberwinterthur motorway junction and the acceleration lane at Forrenberg service station, the widening of existing emergency bays and the installation of a total of 19 signalling portals. The total costs of the project amount to 29 million Swiss francs. In order to prevent traffic backlog at the junctions, constructional adjustments are undertaken and new traffic signal systems are being installed at the junctions Winterthur Ohringen and Oberwinterthur.

The scheduled measures serve as an interim solution until the 6-lane extension between Winterthur Töss and the intersection Winterthur Ost will be commissioned. Current plans call for the motorway extension to be implemented between 2035 and 2040. Holding mandates as project-owner support unit and construction supervisor, R+R has been providing assistance to the general project management team of the Federal Roads Office since early project stages. In this capacity, R+R supports and advises the general project management team in project management, project controlling and in other selected issues.

Key data

Client
Federal Roads Office (FEDRO)

Processing period
2017 – 2021

Project costs
about 29 Mio. CHF

Project type
Road

Services
Project Management

Fields of expertise
Strategic Planning
Project Planning and Organization
Project Controlling
Procurement
Professional Support
Communication Support

Downloads
Project sheet

Contact

Christoph Marti

Consultant, Project manager, managing director, member of the board of directors