Bogota’s mayor hired 420 mimes to shame bad drivers
Hook
Bogota’s mayor hired mimes (420 in the usual telling) to mock people who broke traffic rules. Between 1996 and 2006 traffic deaths in the city fell by two thirds. Nobody can say how much of that was the mimes.
Claim
A mayor can try to change what citizens do by changing the social signal, not only the fine. The mimes were a bet that Colombians feared ridicule more than fines. The bet was one part of a bundle: the traffic police were replaced, enforcement and infrastructure changed, and the decline ran through several mayors.
Story
Antanas Mockus was mayor of Bogota in 1995 to 1997 and 2001 to 2003. In 1995 he put mimes on the streets to copy and mock pedestrians and drivers who broke the rules (Christian Science Monitor, 14 Sept 1995, no count given). The figure of 420 mimes comes from the Harvard Gazette (11 March 2004) and is repeated by Wikipedia and others; the World Bank blog says “about 400”, and no source opened here gives a count from the city itself. Mockus also dissolved the old transit police, and the city replaced them with national police (Hidalgo 2024; La Silla Vacia says 3,200 officers were dismissed).
Traffic deaths in Bogota fell from 1,299 in 1996 to 511 in 2006, and the rate from 23.1 to 7.5 per 100,000 (Hidalgo 2024, from Ministry of Transport data). The same period holds Mockus I, Penalosa (1998 to 2000, car restrictions by plate number, bike lanes, first TransMilenio lines), Mockus II and the start of Garzon. The author credits a combination of campaigns, enforcement and infrastructure. After the emphasis faded, rates stagnated and rose between 2008 and 2017 (8.0 per 100,000 in 2023, as of the 2024 paper).
Other figures, all from the Harvard Gazette (2004) unless noted: water use fell 14 percent in two months during a shortage and “is now 40 percent less than before the shortage”; homicides fell from 80 per 100,000 in 1993 to 22 in 2003; 63,000 people paid a voluntary extra 10 percent. Portafolio (25 Feb 2020) says about 62,000 people paid under Mockus; the extra 10 percent is on the property tax (impuesto predial), and by 2019 only about 19,000 paid.
Sources
- Harvard Gazette, “Academic turns city into a social experiment”, 11 Mar 2004 (420 mimes, deaths 1,300 to about 600, water 40 percent, homicides 80 to 22, 63,000 taxpayers)
- Hidalgo, World Transport Policy and Practice 29.2, Nov 2024 (deaths 1996 to 2006, which mayors did what; opened as PDF)
- Christian Science Monitor, 14 Sept 1995 (what the mimes did, no count, no statistics)
- World Bank blog, “Mime your manners”, 22 Jan 2014 (“about 400” mimes; 50 percent fall in the centre, citing the Gazette; “can’t work everywhere”)
- GMF, Citizenship Culture (Mockus told the NYT in 2015 that deaths fell “by more than half over a decade”; the page says most results rest on his own statements)
- La Silla Vacia, 17 Apr 2010 (3,200 transit officers dismissed; deaths halved over his terms)
- Portafolio, 25 Feb 2020 (voluntary 10 percent on property tax, about 62,000 under Mockus, 19,000 in 2019)
- Antanas Mockus, Wikipedia (lead only; infobox term dates)
- Not opened (blocked or not found): Mockus’s own papers, Science 2007 “Calming Traffic on Bogota’s Killing Streets”, the Guardian 2012 interview, NYT 2015, Instituto de Medicina Legal and Bogota Como Vamos series.
Check before posting
- Say “alongside”, never “because of”: the fall ran 1996 to 2006 across three mayors and bundled enforcement, police reform and infrastructure. As of 2026-11-04 no study opened here separates the mimes’ effect.
- Only Mockus’s own account and the Gazette (a journalist, not a dataset) back the 40 percent water figure and the 63,000 taxpayers. The 63,000 is also 62,000 in Portafolio. Whether it counts people or households, and what share of taxpayers it was, is not stated.
- The mimes count is 420 in the Gazette, about 400 in the World Bank blog; one secondary story says 20 first and 400 more trained (not opened). Say “hundreds” or “about 400 to 420”.
- Not verified: the cause and year of the water shortage; car-free days and pico y placa start dates (only “car restrictions by plate number” under Penalosa is sourced).
- Resolved 2026-11-04: first term ended 1997 (Hidalgo: Bromberg replaced him in his last year; Wikipedia infobox 10 April 1997, succession box says 1996); the “later politics” point is backed by Hidalgo (rates stagnated 2008 to 2017, the campaigns were slashed). Mockus’s later fate is in the brief.
Counterargument
A before-and-after number is not proof that the mimes did it.
Post angles
Facebook (Croatian)
- Gradonačelnik Bogote poslao je na ulice stotinjak mimova (obično se navodi 420) da se rugaju vozačima koji krše pravila. Od 1996. do 2006. smrti u prometu pale su s 1.299 na 511, ali u tom su razdoblju gradom upravljala tri gradonačelnika i mijenjala se policija, kazne i infrastruktura. Nitko ne zna koliko je zasluga mimova. Ideja je ipak zanimljiva: što ako se ljudi više boje blamaže nego kazne?
- Kad je Mockus tražio dobrovoljnih 10 posto poreza više, po Harvard Gazetteu pristalo je 63.000 ljudi (Portafolio kaže oko 62.000). Povjerenje je valuta. Kako ga gradimo?
LinkedIn (English)
- Bogota put hundreds of mimes on the street to mock traffic offenders (420 is the usual figure). From 1996 to 2006 traffic deaths fell from 1,299 to 511, but three mayors, a new police force and new infrastructure were in that period too. Nobody can say how much was the mimes. The idea worth taking is that shame and trust can move behaviour where fines do not.
- About 63,000 people volunteered to pay extra tax, and by 2019 only about 19,000 did. What does it take to keep that trust?
Links
- Medellin cut murders from 266 to 23 per 100,000 and is still one of Colombia’s most unequal cities
- Pontevedra took cars out of its centre, kept growing, and cut fossil CO2 by 67 percent
- The same game with a different name makes people cooperate, and most people cooperate if the game lets them
- Putnam found Italian regional governments worked best where citizens already had civic habits