Campaigns
Holding the Mayor and City Hall to account — from transport and policing to housing and finance.
Improving Travel Times
Mapping journey times across London, why travel in outer London looks different, and why the car is not going away any time soon.
Bus Replay Viewer
I track nearly 9000 London buses making 94,000 journeys every day, across 675 routes, day and night, in every corner of London, bottle them, and put them online for you to watch.
Subsidised Not Affordable
What a social tenancy is really worth, borough by borough: typical private rents against social rents for the same size of home, the gap between them, and its value over a tenancy.
How Is Your Bus Route Doing?
Why TfL's bus performance stats don't tell the whole story, how often buses are cut short before their expected destination, and how to find out what was going on when your bus journey went kaput.
Mapping London's Population
Who lives in London, and how it changed? An interactive 3D map of the 2011 and 2021 censuses, from whole boroughs down to output areas of a few hundred people each: explore age, housing, work, health, education, origins, religion, and language.
Tracking London Crime
How much crime is there in London, and is it getting better or worse? How does it compare with the rest of the country?
Tackling London's Phone-Theft Epidemic
London's phone-theft epidemic was extraordinarily concentrated — my report showed a handful of central wards drove it, and that targeted enforcement there could break it. The police followed that playbook, and phone theft fell for the first time on record.
Crime Concentration
Explore London's 3D crime map. Crime fighting might seem like random whack-a-mole, but the moles pop up in the same few holes year after year. Targeting those hotspots can really drive down crime.