The city's urban planning authorities continue to take full account of these priorities. Special attention is given both to climate issues and efforts to ensure maximum application of low-energy standards. Priorities include sustainable drainage systems, recycling rainwater, green roofs and efficient waste management solutions. In city planning, streets and squares are to be designed to encourage cycling and walking rather than driving. Further, the city administration is working with smart city initiatives to improve how data and technology can be used to implement new solutions that support the transition toward a carbon-neutral economy. These solutions support operations covered by the city administration to improve e.g. public health, district heating, urban mobility and waste management systems. Smart city operations in Copenhagen are maintained by Copenhagen Solutions Lab, the city's official smart-city development unit under the Technical and Environmental Administration.