together with the green party of switzerland, the social democrats have common environmentalist policies, which are reflected in the expansion of ecotax reforms and increased state support for energy saving measures and renewable energies. the sp is against the construction of new roads where possible and instead proposes to shift the transportation of goods from the roads to the railways and the introduction of a cap and trade and traffic management system when it comes to transportation across the swiss alps. furthermore, the sp stands for an expansion of the public transportation system network and opposes nuclear energy.