FoodSim: San Francisco

Picture of a building.

Hello new recruit! Welcome. Cities impact our health in lots of ways and this includes how they provide access to nutrition.

Consider food deserts which are low income areas 1 mile or more away from healthy affordable food. These regions are important for public health because, for residents in these areas, it can be challenging to maintain a good diet. Our team is trying to chip away at food deserts using urban planning.

Picture of Chief Charlie, the leader of the group who is a black man in a suit.

I'm Chief Charlie, the leader of the team. Your assignment is one of the wealthiest cities in the US: San Francisco.

This map shows all of the areas with housing within San Francisco. Your job as a city planner is increase the chances people will choose healthy food. To help you, I've got two advisors along with me: Zoe Zoning and Tamara Transit.

Picture of Zoe Zoning, advisor with long red dress and long black hair.

Hey there I'm Zoe Zoning and can help you use one of your most powerful tools: getting subsidies and zoning for new construction. Let me walk you through.

These filled in dots (Screenshot of a supermarket in the simulation) represent supermarkets (source: OSM, see below). The denser northern part of the city offers many food options but there are some locations in SF with less access, especially in the less dense southern part of the city. For example, the simulation has circled Hunter's Point in the Bayview-Hunter's Point neighborhood which, in addition to being one of the poorer areas, is far from a supermarket.

Picture of Zoe Zoning, advisor with long red dress and long black hair.

Of course, supermarkets aren't the only source of food and these filled in squares (Screenshot of a fast food location in the simulation) represent fast food locations.

This tool simulates if different residential areas would choose to go to fast food or the supermarket based on distance to each. Note the southeast of SF. For a lot of residents in this poorer area, fast food may just represent a more convenient option.

Picture of Zoe Zoning, advisor with long red dress and long black hair.
In contrast to the Bayview, other areas just to the west are both wealthier and offer more supermarket options. This demonstrates an interesting trend where sometimes income follows access: those with less financial resources to cope with distance to supermarkets are also sometimes those furthest from them.
Picture of Tamara Transit, advisor a slim blue dress and longish hair.

Oh! Sorry to interrupt. I'm Tamara Transit and can help with transit improvements.

I just want to add that food deserts are often framed in terms of physical distance and income but public transit also plays a role. Consider this area near Lake Merced. While higher income relative to the Bayview, it sees poor transportation access, indicating another way the layout of the city might influence eating habits.

Picture of Chief Charlie, the leader of the group who is a black man in a suit.

Now that you know what some of the problems are, how might you as a new city planner make it better? I've enabled your controls below.

Use the controls on the right and then click in the map to add new supermarkets (or fast food locations) through rezoining and building subsidies. Also, use the slider to change transit subsidies which might encourage residents to travel further to get to a supermarket relative to the nearest fast food option.

Picture of Chief Charlie, the leader of the group who is a black man in a suit.
Your goal is to get 80% to choose the supermarket but be careful: you have a budget.
That's it for the intro. If you want to learn more, you may also consider reviewing maps of income in the area, how neighborhood wealth has changed over time, and the layout of SF's mass transit.
Guide skipped!
Progress:
Keep going! You have spent 0% of your budget (0% on rezoining and construction subsidy, 0% on transit improvement and subsidy). Goal: 80% choose supermarket. You can also reset your design and try again.
Summary of results:
(Example of what a residential area choosing supermarket looks like in the simulation)
(Example of what a residential area choosing fast food looks like in the simulation)
(Example of what a residential area far from food source looks like in the simulation)
0%
100%
Building subsidy / rezoning:
Left click (or tap) to construct / remove building.
Invest in transit to change how much further is someone willing to travel to get to a supermarket relative to the nearest fast food.