Western Scandinavia features two successful examples of such packages, in Oslo and in West Sweden (see the summary in Table 2.7 and a description in Box 2.9). Both political agreements allow for substantial national investment in urban transport infrastructure under the condition that the metropolitan areas create a new tax or a charge (a ring road toll in Oslo, congestion tax in Gothenburg) and use the revenue to match national funding. City packages are long-term plans for the development of transport systems in a city or in a metropolitan area (typically over a period of 20 years), which are co-fiinded with road tolls.