The completed metro will be more than what was specified in the project plan
The overall cost forecast for the Ruoholahti–Matinkylä section is EUR 1,186 million. The forecast also includes projects to be implemented in the metro station’s surrounding environment, for instance, in Matinkylä. The index-adjusted budget for the construction project, to the extent laid down in the original project plan (2008), is EUR 849 million (project plan EUR 714 million + index adjustment EUR 135 million). As the construction progressed, the scope of the work carried out during the West Metro project changed considerably from what was specified in the project plan. The changes improved the metro, making it better suited to the changing urban structure, but they also affected the project’s overall costs.
The areas required for technical spaces grew by even more than 50 per cent as a result of, for example, the need for more smoke-extraction ducts, and due to raising the technical facility systems from below the platforms to a higher position as a precaution against possible water damage. One decision that resulted in an important improvement for commuters was to make all entrances wheelchair accessible. Under the original project plan, only one wheelchair-accessible entrance was planned at every station. These improvements increased the metro stations’ construction costs and were among the biggest cost changes in the entire project.
Changing and developing the urban environment near the metro stations also had an impact on the project costs. For example, the size of the above-ground building at the Koivusaari metro station grew significantly to accommodate a second-floor entrance. The change was carried out to take into account the city’s plan to build a road between the metro building and the Länsiväylä highway.
If the first phase of the West Metro had been realised only to the extent laid down in the project plan, the costs would have amounted to an estimated EUR 933 million, and the cost overrun would have been altogether less than 10 per cent in relation to the index-adjusted project plan. The project plan did not take into account the risk reserve that is usual for projects of this size. The risk reserve for major projects is typically around 10 per cent. Considered in relation to the scope laid down in the project plan, and taking the risk reserve into account, the costs for West Metro do not substantially deviate from the planned costs.
|Total cost forecast, EUR||1 186 milj. euroa|
|Construction contracts||384 milj.|
|Excavation contracts||298 milj.|
|HVAC and electricity contracts, IT systems, lifts/escalators, track engineering contracts||246 milj.|
|Vuosaari maintenance track||2 milj.|
|Park & ride facilities||26 milj.|
|Matinkylä bus terminal, park & ride facilities||20 milj.|
|Engineering during work||42 milj.|
|Engineering: architectural design, geotechnical engineering, rail technology, rock engineering, structural engineering, HVAC and electricity||55 milj.|
|Ground surveys||6 milj.|
|Construction contracting: project management services, land survey services, worksite rents, worksite services, etc.||63 milj.|
|Property maintenance and spare parts||9 milj.|
|Cost reserve||3 milj.|
|Project reserve||32 milj.|
The precise final costs for implementing phase one will be known once the final stages of work, which are currently under way, are completed. Ongoing work in phase one includes, for instance, construction work on the west entrance to the Matinkylä station.