Projects
A few things I have worked on or am currently exploring.
American Dream
Median pay by occupation, minus tax, a 1-bedroom, transportation, and food. Leftover income a year, on a map, plus what actually moves the number.
Airport trains
People movers and dedicated rail at US airports, each compared with that city’s urban rail. The datasets are on the page.
Car costs
Published estimates of what driving costs other people — congestion, crashes, air, climate, parking. The studies disagree; the page does not pick a winner.
Parking reform
Where cities have removed or reduced parking minimums, from the Parking Reform Network map. Their data; this page’s filters.
Be like
I live in X. I want it to be more like Y. Default: San Francisco next to Paris. US commute, Canadian census commute, European typical-day travel, plus Singapore, Hong Kong, and Tokyo census commute where a labeled file exists. GHSL urban-centre density and Overture food/shop counts on the same outline. Other Asian cities are land use only in this extract.
Mode Share
How people usually get to work, from the Census American Community Survey. Map states and counties, then compare large metros and the outliers in the 2024 numbers.
Bus Bunch
Live map of Muni buses that are bunched — same route, same direction, too close together.
SF SROs
San Francisco’s residential hotels: official DBI room counts, then a map of Planning SRO parcels joined to the AUUR list.
SF Zoning
A map of San Francisco use districts. Click a lot for block/lot, address, and Planning Code links.
Golden Gate Conditions
Currents and experimental Fort Point swell/surf tools for San Francisco Bay.
Driver Behavior
A curated reading list of local reporting about traffic violence in San Francisco.
Health Billing
Pick a procedure and Covered California plan, then compare published prices at San Francisco hospitals.
Transit
Live multi-agency map — pick an agency, toggle routes, see vehicles in near real time.
SF Bike
Closing the top 10 gaps in San Francisco’s Core All Ages and Abilities bicycle network.
SF Transit
Low-cost improvements for BART and Muni—signage, gates, boarding, fares, and rider experience.
Bus Bulb
See how much slower Muni’s padded schedules are than the fastest run—and estimate how bus bulbs could buy time back.
Sunshade Planner
Place a triangular shade sail on a San Francisco deck and compare June 21 shadows with a March–September shade heatmap.
UV Index
Live UV for your location or any city — today by the hour, the past and next week, and how it changes through the year.
Bike + Train Maps
Bay Area trip planner — bike directions plus BART, Caltrain, and SMART with bike first and last miles.
Bike Map
Filter Strava heatmap screenshots, georeference popular routes, and compare them with OSM bike ways.
Flying with a Brompton
What to buy, how to get through TSA, and how to board with a Brompton as a carry-on.
Sail Router
Isochrone sailing routes on San Francisco Bay — wind, current, and a boat polar. Click start and destination on the chart.
Transit Moneyball
A prototype ranking of American transit agencies by performance over expected.