Estimate number of cars per district

[torhaa1]

Need to roughly estimate the number of police cars per police district based on public data.
Potential sources to base estimate on:

• district population
• number of police employees in district
• number of police cars in district

Uncertainties will be large as there is large variation between the districts, and the Oslo district likely holds additional resources and personnel for other departments.

[torhaa1]

Used data sources mentioned above:

• population data: ssb 2021
• number of police employees in district: resource analysis 2021
• number of police cars in district: resource analysis 2021

In addition to:

• 11 cars for East district as guideline, mentioned in aftenposten news article

commit: 4994e3b
Used variables population, employees, registered patrol cars and employees divided on the registered patrol cars as popDeriv, empDeriv, carsDeriv and empCarsCapDeriv. Scaled down the variables to 11 for the East district. Used the average of all variables as the first estimate.

Next, subtracted one from the districts Nordland, MoreRomsdal, SouthWest, Agder since the variable empCarsCapDeriv was significantly higher for these districts. Also subtracted 1 from Oslo, as there probably is some resources tied up in other departments and functions. Used 4 cars as a minimum for all districts.

Rough estimate for minimum number of cars per (shift) district displayed as black bars minCarsPerShift:

Police districts	Finnmark	Troms	Nordland	Trondelag	Inland	MoreRomsdal	West	SouthWest	Agder	SouthEast	East	Oslo
Nr of cars	4	4	4	7	6	4	9	7	5	10	11	14