Robot couriers are becoming an increasingly common sight on Finnish streets, prompting new questions about safety, traffic rules and responsibility.Zena Iovino16:13Traffic watchdog Traficom says more than 1,000 light automated delivery vehicles are already operating in Finnish cities, with numbers expected to rise even further as Uber Eats begins rolling out its own fleet nationwide.The robots can travel at speeds of up to 15 kilometres per hour and operate legally in pedestrian areas under a special exemption. Although they are not classified as conventional vehicles, they must still follow traffic rules, including those on yielding.Responsibility for the robots falls on the companies operating them, which are required to monitor their machines. However, Finland does not currently have a licensing system for them.Accidents could create further legal questions. Police say deliberately driving into a delivery robot could constitute criminal damage, although the issue has so far received little attention because there have been too few serious incidents to establish a clear pattern.As the number of delivery robots grows, authorities and the public may soon face a bigger test: what happens when these automated machines make a mistake — or when they collide with people, vehicles or each other?