Number of permanent speed cameras: FOI release

Information requested

1. How many permanent average speed cameras (eg in fixed location and not just temporarily in roadworks) were on the roads you manage on 1st January 2018, 1st January 2019, 1st January 2020 and 1st January 2021? Please give each year separately.

2. How many miles of road were permanent average speed cameras covering on 1st January 2018, 1st January 2019, 1st January 2020 and 1st January 2021? Please give each year separately".