This has led some authorities to seek detailed data from companies that may or may not be requested from other mobility service providers - or car drivers - on the same markets. Recent investigation of this data for New York City, for example, shows mixed results as far as the impact of ride services at an early stage of their deployment in that city (see Box 2). For this reason, some authorities are actively trialling partnerships with ride-sourcing companies in order to both lower the cost of public transport provision and to improve mobility outcomes for those who cannot, or choose not to, drive cars.