With few technological barriers remaining in delivering individual elements of vehicle autonomy and so much to be gained financially in the automotive industry, vehicle technology appears to be following a path of the inexorable development of sensors, connectivity, control systems and on-board computing. However, despite the progress being made in individual technologies, there remains an enormous challenge in plumbing them all together into a single coherent driverless car that can be used in mixed traffic and will be accepted by the consumer base. For autonomous vehicles to operate correctly and safely, the whole system needs to be seamlessly integrated and robust. This is where the main challenges to true autonomy lie. All elements of the sensing and control systems must operate together, along with external systems, which could be other vehicles, the road infrastructure or wider "cloud-based" services.
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