The expansion of the double lane between Uster - Aathal is the subject of the AS35 and enables more frequent intervals and greater schedule stability. A further reduction in headway times (ZFZ) between Dübendorf and Uster is planned. Three underpasses have to be built in Uster in order to counteract the critical effects on road traffic due to long barrier closing times at the railroad crossings. This tender includes the general planning services from the preliminary project to commissioning (SIA sub-phases 31, 32, 33, 41, 51, 52 and 53 according to SIA 112).

It includes services from the following departments:

- Overall management / coordination;

- Chief construction manager;

- construction phase planning;

- Civil engineering (civil engineering, supporting structure, geotechnical engineering);

- geology;

- Technical equipment;

- Electric wire;

- traction current;

- Environment;

- surveying;

- architecture.

The expansion of the double lane between Uster - Aathal is the subject of the AS35 and enables more frequent intervals and greater schedule stability. A further reduction in headway times (ZFZ) between Dübendorf and Uster is planned. Three underpasses have to be built in Uster in order to counteract the critical effects on road traffic due to long barrier closing times at the railroad crossings. This tender includes the general planning services from the preliminary project to commissioning (SIA sub-phases 31, 32, 33, 41, 51, 52 and 53 according to SIA 112).

It includes services from the following departments:

- Overall management / coordination;

- Chief construction manager;

- construction phase planning;

- Civil engineering (civil engineering, supporting structure, geotechnical engineering);

- geology;

- Technical equipment;

- Electric wire;

- traction current;

- Environment;

- surveying;

- architecture.