Social Distance Modelling for COVID
On 15 August 2020, the Danish Heath Authority (Sundhedsstyrelsen) issued regulations, that among other things, required enforcement of physical distancing, both onboard trains and in public facilities. In many cases, the regulations set a target of 50% capacity. This was enacted on longer distance trains by implementing mandatory seat reservations, which were offered at no charge with a mobile phone app. However, on suburban trains and metros, there are no customer service personnel (conductors) onboard trains, and thus no one available to enforce these reservations. Copenhagen suburban trains have passenger counting technology, and so the national railway company, DSB, implemented a mobile phone app that could display the current occupation percent of individual trains in real time.