Sustrans www.sustrans.org.uk/ have a wide range of initiatives, including:

Cycles for key workers
An interactive map to help key workers find bike offers and services in their area.

Lockdown activities for families
Packed full of challenges, games and cycling, walking and scooting themed activities. All designed by their experienced and fun-loving Schools Officers. 

Space to move www.sustrans.org.uk/space-to-move/
Sustrans have created a map which shows the latest street changes across the UK.
These changes include temporary cycle lanes, wider footpaths, barriers to close streets to motor traffic, and reduced speed limits.
Search for your area, click on the icon, and fill in a short form to tell them how these changes are working for you.
They will collate the information and report back to local authorities where appropriate.