[1] The highest concentration is found in the largest city, Cotonou, where there are an estimated 72,000.
The drivers wear uniforms that are color-coded by city and have registration numbers on the back.
[1][3] Would-be passengers summon a zémidjan by calling "kekeno", a word derived from the Fon language.
The zémidjan typically stops by and the passenger and driver negotiate the price, depending on the final destination.
A movie called Dreamcycles by Nelson Roubert was made about the kekenos of Tevisodji Park.