A woman squeezes between two public buses in downtown Lima, March 17, 2014. Bogota and two other Latin American capitals – Mexico City, and Lima in Peru – were named as the three capitals with the least safe transport systems for women in the Thomson Reuters Foundation poll of more than 6,550 women and gender and city planning experts. Women in Latin America say they face a wide range of daily threats on public transport, and not enough is done to ensure their safety. (Photo by Enrique Castro-Mendivil/Reuters)

Passengers push open the sliding doors of a Women-Only passenger car in the subway in Mexico City October 24, 2014. Trains, buses and taxis for women only are on the rise in cities globally with a Thomson Reuters Foundation survey finding women feel safer on single-s*x transport but gender experts dismissing this as a band-aid solution that could backfire for women. (Photo by Edgard Garrido/Reuters)

Passengers ride a public bus in a traffic jam in downtown Lima, April 4, 2014. (Photo by Enrique Castro-Mendivil/Reuters)

Passengers ride a Transmilenio system bus during rush hour in Bogota, October 27, 2014. A Thomson Reuters Foundation survey of 15 of the world's largest capitals and New York found Bogota in Colombia ranked as having the most unsafe public transport, with women scared to travel after dark, followed by Mexico City, Lima, then Delhi. (Photo by John Vizcaino/Reuters)

Passengers ride a packed public bus in downtown Lima, March 15, 2014. (Photo by Enrique Castro-Mendivil/Reuters)

Women push open the sliding doors of a Women-Only passenger car in the subway in Mexico City October 24, 2014. (Photo by Edgard Garrido/Reuters)

Women ride the Women-Only passenger car at a subway station in Mexico City October 24, 2014. (Photo by Edgard Garrido/Reuters)

People stand inside a crowded passenger car of the subway in Mexico City October 24, 2014. (Photo by Enrique Castro-Mendivil/Reuters)

Passengers wait to board the Women-Only passenger car at a subway station in Mexico City October 24, 2014. (Photo by Edgard Garrido/Reuters)

Women ride the Women-Only passenger car at a subway station in Mexico City October 23, 2014. (Photo by Edgard Garrido/Reuters)

Women stand together inside a segregated area while waiting to board Women-Only passenger cars at a subway station in Mexico City October 23, 2014. (Photo by Edgard Garrido/Reuters)

Passengers wait to board the Women-Only passenger car at a subway station in Mexico City October 23, 2014. (Photo by Edgard Garrido/Reuters)

The early morning sun shines on women while they wait to board the Women-Only passenger car at a subway station in Mexico City October 24, 2014. (Photo by Edgard Garrido/Reuters)

Passengers try to cram into a Transmilenio system bus during rush hour in Bogota, October 16, 2014. (Photo by John Vizcaino/Reuters)

Passengers ride a packed public bus in downtown Lima, October 27, 2014. (Photo by Enrique Castro-Mendivil/Reuters)

People stand inside a crowded passenger car of the subway in Mexico City October 24, 2014. (Photo by Enrique Castro-Mendivil/Reuters)

Passengers stand in a packed public bus in downtown Lima, March 15, 2014. (Photo by Enrique Castro-Mendivil/Reuters)

Passengers ride a packed Metropolitano public bus in downtown Lima, October 28, 2014. (Photo by Enrique Castro-Mendivil/Reuters)