The unit will be available between 10am and 3pm each day, with the aim of making it as easy as possible for people to get tested if they have coronavirus symptoms.
Anyone with symptoms can book a test by visiting www.nhs.uk/conditions/coronavirus-COVID-19-19 Those unable to access the internet can call 119 to book a test.
Key workers can log on to the self-referral portal www.gov.uk/apply-coronavirus-test-essential-workers. They will be offered a drop-down list of local options for testing including nearby mobile units.
People can also attend the mobile testing unit if they haven’t booked an appointment, although it is advisable to do so to avoid having to wait.
Dr Liz Robin, director of public health for Peterborough City Council, said: “The additional testing facility is just one part of a larger plan to reduce the rate of community transmission of COVID-19 in Peterborough, which we know is higher than other areas in the East of England.
“Please, if you have symptoms of coronavirus – a fever, new continuous cough or a loss or change in sense of smell or taste – please book an appointment for a test and self-isolate immediately. You will also have the option to attend the permanent testing site at Peterborough Showground.
“If you follow the rules and test and isolate if you have symptoms, the safer it will be for your family and friends and the better chance we have of avoiding a second stage of lockdown.”
The city council will also be looking at other locations around the city which might benefit from a mobile testing facility.