Hi, share your knowledge with the community!

How to estimate the number of taxis in Köln ?

Anonymous A

How to estimate the number of taxis in Köln? Given that the number of residents in Koln is 1M.



  • Upvotes
  • Date ascending
  • Date descending
Andrea replied on 09/27/2017

Hi, I would estimate this way. I hope it helps.

- (N° of residents * % residents no driving license * % residents no car * % residents no public transport) * N° drive over year / AVG N° of passages each taxi

- N° of residents = 1M

- % residents no driving license = 1/2 (I am assuming 4 clusters of people (0-20years old; 21-40 years old; 41-60 years old and +61 years old) and I exclude 0-20 (too young) and +61 (too old))

- % residents no car = 50% (I am assuming that in a normal family, like mine, we have 1 car every two people

- % residents prefer taxi than public transport = 50% (I am assuming two segments: the one who takes taxi and the one who takes public transport)

- N° drive over year = 1 (1 drive each week) * 52 weeks = 52 (round to 50 for simplicity)

- THEREFORE, the upper part is = 1M * 0.5 * 0.5 * 0.5 * 50 = 6250K people (market demand)

- AVG N° of passages each taxi = AVG time each drive * AVG n° people each drive * Daily working hours * 310 (day in a year, 365 - 52 weeks (1 free day a week) = 312, but 310 for simplicity)

- Daily working hours = 8 h

- AVG time each drive = 20 min = 1/3 h

- AVG n° people each drive = 2

- THEREFORE, the lower part equals to = 8 * 3 * 2 * 360 = 48 * 310 = 14880 (I will round it to 15K)

- THEREFORE, to serve 6250K potential customers, given that a single taxi can serve 15K of them daily) = 6250K / 15K = roughly 415 taxis

Jonas replied on 09/27/2017

Number of residents(1M) * avg taxi rides per residents per month (1)= total demand of rides (1M)

avg. rides per taxi in one 8h shift (15)* 2 shifts per day * 30 days per month = total rides offererd (900)

1m/900 = 1111 or 1100 taxis in Cologne

Anonymous B replied on 09/27/2017

[Pop Koln] * [% adult] * [% drivers license] * [% work] * [% work in transportation] * [% work in people transportation] * [% work for taxi company] * [1/# people operating under the same taxi]

Related BootCamp article(s)

Market Sizing

Market Sizing Cases are used to test your quantitative and reasoning skills. The interviewer evaluates your structure, numbers-handling and business sense.

16 Comment(s)

Important Facts

It's essential to know some key figures regarding geographies, population, economies for your case interviews. We summarized them for you here.

9 Comment(s)

Related case(s)

Your client, large automotive OEM WyCar, has developed its first fully electric vehicle (EV) and introduced it as a pilot on the Austrian market last year. However, sales have been far below the expected numbers. The management has engaged you to support them in understanding the reasons and advise ... Open whole case

Bain Case: Old Winery

Solved 11.0k times
4.4 5 292
| Rating: (4.4 / 5.0)

You have inherited the “Old Winery” from your grandfather, a winery which has been family owned for five generations and can be dated back to the 16th century. Half of the eleven hectares are used to grow white grapes, the other half to grow red grapes. They are grown in the conventional way, i.e ... Open whole case

Onlinestar, an online retailer of furniture and garden products (core business), has grown significantly in recent years as a result of an expansion of its product portfolio. The company mainly imports goods from Chinese manufacturers but also operates its own production of cat lavatories (special b ... Open whole case


Solved 39.4k times
4.5 5 1153
| Rating: (4.5 / 5.0) |

Nutripremium is a very well-known premium nutrition food company in Europe (€1 billion revenue last year). It is based in Spain and has an excellent market share not only in its home country but also in Portugal, France, Italy and Germany. Nutripremium has two main lines of products: Vitam ... Open whole case

Children vaccine

Solved 36.3k times
4.4 5 1144
| Rating: (4.4 / 5.0) |

Beyer, one of the biggest pharmaceutical companies in the world, just invented a very reliable vaccine against Chickenpox, a disease that affects children in the age from 2 to 16 years. Beyer came to you wondering what their potential sales in Europe in the first year would be if they launched th ... Open whole case