In 2016, Public Health England released a guide for local authorities to promote active travel as a solution to physical inactivity. Physical inactivity costs the UK billions of pounds a year when its impact on NHS, social care, absence from work caused by illness and other factors are considered. On 23rd May 2020, the UK government announced funding to local authorities in England for active travel schemes and encouraged them to make the changes as soon as possible. As a result, most London councils (by following the guidance by Transport for London) and some other cities in England started introducing modal filters to create Low Traffic Neighbourhoods (LTNs) to access the government funding.