People per police station, block by block

What it does

Every year: how many people live in each part of your city and how many police stations are within 3 km, the least covered blocks first, for the city safety plan, emailed and mapped.

In one sentence: Monthly on the 1st at 08:00, in Medellin, count who lives around, sort them by population and keep the top 80, count the police stations and polices within 2 km of each, work out new fields, sort them by per_station and keep the top 15, then show them on a map and email the list to you.

Why it is useful

Police stations are spread by history, not by where people live now. This flow shows the gaps for the safety plan.

Who it is for

Security, safety & emergency services. Security companies, alarm installers, police, fire and ambulance services and safety teams covering people and places. Every use case for security & emergency services

Best use cases

• A city safety department
• A police planning unit
• A safety researcher

What each run gives you

• A map
• An email

The time it saves

Monthly on the 1st at 08:00. Doing the same work by hand takes about 240 minutes each time; it runs about 1 time a month, so it saves about 4 hours a month (an estimate). It is medium: 9 blocks.

The flow, block by block

1. On the 1st of every monthTrigger · ScheduleStarts the flow on a timetable.
2. My cityWhere · Area of interestSets where the flow looks: countries, cities or specific places, or areas you draw on a map.
3. People in every block of the cityxMap data · DemographicsWho lives in an area: the number of residents, men and women, and nine age groups, from xMap’s population grid (hexagons of about 0.1 km², about 100 countries).
4. Best 80 firstLogic · Sort and limitPuts the items in order, and can keep only the first ones: the 10 best rated, the 20 nearest, the highest fit scores.
5. Police stations within 3 kmxMap data · Nearby placesPlaces around a point from xMap’s own places database (300M+ places, refreshed every month): pick the types of place (more than 5,000, such as Restaurant, Cafe, Pharmacy, Hospital or Gas station, or a whole group of them) and how far to look.
6. People per stationLogic · Calculated fieldAdds fields worked out from the others: a number, a text or a yes/no.
7. Best 15 firstLogic · Sort and limitPuts the items in order, and can keep only the first ones: the 10 best rated, the 20 nearest, the highest fit scores.
8. Show them on a mapAction · Show on a mapShows the results as points on a map, with the area of interest.
9. Email me the listAction · EmailSends one email per run with all the items, or one email per item.

Every block can be changed after you use the template: the city, the type of place, the score, where the results go.

Use it now

Answer a few questions, enter your work email, and it runs in your own account, kept running until you pause it. Use this template.