These roles may be unified within one level of government or agency but in many instances it may be spread across several levels (national, regional or local). Even at any given level, responsibility may be spread across several departments or services with little top-level co-ordination. This complicates the task of aligning outcomes in, say, the regulation of ride services that may fall under those in charge of taxi or for-hire regulations and public transport regulation which may fall under a completely different authority. If transport governance structures contribute to this friction, it may be very difficult to even broach the subject of synergies between ride services and public transport, let alone experiment with them. This is certainly the case where, for any number of reasons, new ride services are prevented from operating or face constraining conditions. At a very basic level, split responsibility and split levels of decision-making may hamper the trialling of innovative new arrangements.